/* ================================================================
   PORTFOLIO CSS — Dark Premium Style
   Author: Your Name
   
   TABLE OF CONTENTS:
   1. CSS Variables & Reset
   2. Cursor & Noise Overlay
   3. Typography
   4. Utilities & Layout
   5. Navbar
   6. Hero Section
   7. About Section
   8. Skills Section
   9. Services Section
   10. Projects Section
   11. Contact Section
   12. Footer
   13. Modal
   14. Animations & Keyframes
   15. Responsive (Mobile)
================================================================ */

/* ================================================================
   1. CSS VARIABLES & RESET
================================================================ */
:root {
  /* --- Background Colors (deep ocean blue palette) --- */
  --bg-base:        #020b18;
  --bg-surface:     #061224;
  --bg-elevated:    #0a1a32;
  --bg-glass:       rgba(0, 140, 255, 0.05);
  --bg-glass-hover: rgba(0, 140, 255, 0.09);

  /* --- Accent Colors --- */
  --accent-data:    #38bdf8;     /* sky blue */
  --accent-design:  #818cf8;     /* indigo/violet */
  --accent-glow:    #0ea5e9;     /* bright blue glow */
  --accent-gold:    #34d399;     /* emerald as contrast */

  /* --- Text Colors --- */
  --text-primary:   #e8f4ff;
  --text-secondary: #7aa3c8;
  --text-muted:     #2e5070;

  /* --- Borders --- */
  --border-subtle:  rgba(56, 189, 248, 0.08);
  --border-medium:  rgba(56, 189, 248, 0.18);

  /* --- Gradients --- */
  --grad-data:      linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
  --grad-design:    linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  --grad-hero:      linear-gradient(135deg, #0ea5e9 0%, #38bdf8 40%, #818cf8 100%);

  /* --- Typography --- */
  --font-display:   'Plus Jakarta Sans', 'DM Sans', sans-serif;
  --font-body:      'DM Sans', sans-serif;
  --font-mono:      'Space Mono', monospace;

  /* --- Spacing --- */
  --section-pad:    120px;
  --container-max:  1200px;

  /* --- Transitions --- */
  --ease-smooth:    cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce:    cubic-bezier(0.34, 1.56, 0.64, 1);
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul {
  list-style: none;
}

/* ================================================================
   THREE.JS & PARTICLE CANVASES
================================================================ */
#threeCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

#particleCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
}

/* Per-section small 3D canvas decorations */
.section-3d-deco {
  position: absolute;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  transition: opacity 0.6s;
}

.section-3d-deco.visible {
  opacity: 0.7;
}

.deco-about   { top: 5%;   right: -60px; width: 220px; height: 220px; }
.deco-skills  { top: 10%;  left: -80px;  width: 180px; height: 180px; }
.deco-services { bottom: 5%; right: -50px; width: 160px; height: 160px; }

.section-shape-canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ================================================================
   2. CURSOR GLOW & NOISE OVERLAY
================================================================ */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  z-index: 0;
  top: 0;
  left: 0;
}

.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ================================================================
   3. TYPOGRAPHY
================================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-title.centered {
  text-align: center;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.label-line {
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--accent-data);
}

/* ================================================================
   4. UTILITIES & LAYOUT
================================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-pad) 0;
  position: relative;
  z-index: 2;
}

/* Glass card */
.glass-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 0.3s var(--ease-smooth), border-color 0.3s, transform 0.3s var(--ease-smooth);
}

.glass-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
  transform: translateY(-4px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 0.3s var(--ease-bounce);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.3s;
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: var(--grad-data);
  color: #000;
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.5);
}

.btn-ghost {
  background: var(--bg-glass);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: var(--bg-glass-hover);
  border-color: var(--accent-data);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.15);
}

/* Reveal animation: applied by JS on scroll */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ================================================================
   5. NAVBAR
================================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background 0.4s, padding 0.4s, backdrop-filter 0.4s;
}

.navbar.scrolled {
  background: rgba(7, 8, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 0;
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  transition: color 0.2s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent-data);
  transition: width 0.3s var(--ease-smooth);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.3s;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Nav Contact Button ── */
.nav-contact-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 26px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  box-shadow: 0 0 18px rgba(99,102,241,0.35);
  transition: all 0.3s var(--ease-bounce);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.nav-contact-btn:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 0 32px rgba(99,102,241,0.55);
}

/* ================================================================
   6. HERO SECTION
================================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
  z-index: 2;
}

/* Background geometric grid */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
}

/* Floating blobs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.2) 0%, transparent 70%);
  top: -250px; left: -250px;
  animation: orbFloat1 12s ease-in-out infinite;
}

.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.18) 0%, transparent 70%);
  bottom: -150px; right: 5%;
  animation: orbFloat2 10s ease-in-out infinite;
}

.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 70%);
  top: 35%; left: 45%;
  animation: orbFloat3 14s ease-in-out infinite;
}

.hero-content {
  container: hero-content / inline-size;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-data);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  width: fit-content;
  animation: fadeInDown 0.8s ease both 0.2s;
}

.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-data);
  box-shadow: 0 0 8px var(--accent-data);
  animation: pulse 2s ease infinite;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 0.75rem;
  animation: fadeInUp 0.9s ease both 0.3s;
}

.hero-title .name-accent {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.9s ease both 0.4s;
}

.hero-role .role-data { color: var(--accent-data); }
.hero-role .role-design { color: var(--accent-design); }
.hero-role .role-sep { margin: 0 8px; color: var(--text-muted); }

.hero-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
  animation: fadeInUp 0.9s ease both 0.5s;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.9s ease both 0.6s;
}

.hero-socials {
  display: flex;
  gap: 16px;
  align-items: center;
  animation: fadeInUp 0.9s ease both 0.7s;
}

.social-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all 0.3s var(--ease-bounce);
}

.social-icon-link:hover {
  background: var(--bg-glass-hover);
  border-color: var(--accent-data);
  color: var(--accent-data);
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
}

/* 3D Hero Visual — Wireframe Sphere with Skill Labels */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease both 0.4s;
}

.hero-sphere-wrapper {
  position: relative;
  width: 420px;
  height: 420px;
  display: flex;
  justify-content: center;
  align-items: center;
  /* overflow visible so labels can extend outside canvas */
  overflow: visible;
}

#heroSphereCanvas {
  position: absolute;
  top: 0; left: 0;
  width: 100% !important;
  height: 100% !important;
  filter: drop-shadow(0 0 32px rgba(56,189,248,0.22));
}

/* Skill labels — positioned by JS via transform */
.sphere-skill-label {
  position: absolute;
  top: 0; left: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px 6px 9px;
  border-radius: 100px;
  background: rgba(3, 11, 24, 0.96);
  border: 1px solid rgba(56,189,248,0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.2s ease;
  will-change: transform, opacity;
  transform: translate(-9999px, -9999px);
  box-shadow: 0 2px 16px rgba(0,0,0,0.5);
}

.ssl-icon {
  font-size: 0.88rem;
  line-height: 1;
  flex-shrink: 0;
}

.ssl-text {
  font-family: var(--font-display);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  line-height: 1;
  /* color set inline by JS per ring */
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  animation: fadeIn 1s ease both 1.2s;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent-data), transparent);
  animation: scrollLineAnim 2s ease-in-out infinite;
}

/* ================================================================
   7. ABOUT SECTION
================================================================ */
.about-section {
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(124, 58, 237, 0.06) 0%, transparent 70%);
}

.about-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-photo-frame {
  position: relative;
  width: 340px;
  height: 400px;
  margin: 0 auto;
}

.about-photo-placeholder {
  width: 100%; height: 100%;
  border-radius: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--text-muted);
  position: relative;
  overflow: hidden;
}

.about-photo-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.05) 0%, rgba(124,58,237,0.05) 100%);
}

/* When you add a real photo: */
.about-photo {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 24px;
}

.photo-deco {
  position: absolute;
  border-radius: 8px;
}

.photo-deco-1 {
  width: 80px; height: 80px;
  background: var(--grad-data);
  opacity: 0.15;
  bottom: -20px; right: -20px;
  border-radius: 50%;
  filter: blur(20px);
}

.photo-deco-2 {
  width: 60px; height: 60px;
  background: var(--grad-design);
  opacity: 0.15;
  top: -20px; left: -20px;
  border-radius: 50%;
  filter: blur(20px);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.stat-chip {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  transition: all 0.3s var(--ease-smooth);
}

.stat-chip:hover {
  border-color: var(--accent-data);
  background: var(--bg-glass-hover);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--grad-data);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-text .section-title {
  margin-bottom: 1.5rem;
}

.about-paragraph {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.8;
}

.role-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 2rem;
}

.role-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  border-radius: 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s var(--ease-smooth);
}

.role-card:hover {
  transform: translateY(-3px);
}

.role-data {
  border-top: 2px solid var(--accent-data);
}

.role-design {
  border-top: 2px solid var(--accent-design);
}

.role-card i {
  font-size: 1.5rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.role-data i { color: var(--accent-data); }
.role-design i { color: var(--accent-design); }

.role-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.role-card span {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ================================================================
   8. SKILLS SECTION
================================================================ */
.skills-section {
  background: var(--bg-surface);
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 3rem;
}

.skills-column {
  padding: 36px;
}

.skills-col-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 2rem;
}

.skills-col-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.data-icon {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-data);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.design-icon {
  background: rgba(255, 107, 107, 0.1);
  color: var(--accent-design);
  border: 1px solid rgba(255, 107, 107, 0.2);
}

.skills-col-header h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.skill-item {
  margin-bottom: 1.5rem;
}

.skill-item:last-child {
  margin-bottom: 0;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.skill-name {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.skill-pct {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.skill-bar {
  height: 4px;
  background: var(--bg-elevated);
  border-radius: 100px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  border-radius: 100px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skills-column:first-child .skill-fill {
  background: var(--grad-data);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

.skills-column:last-child .skill-fill {
  background: var(--grad-design);
  box-shadow: 0 0 8px rgba(255, 107, 107, 0.4);
}

/* ================================================================
   9. SERVICES SECTION
================================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 3rem;
}

.service-card {
  padding: 32px 28px;
  border-radius: 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  transition: all 0.4s var(--ease-smooth);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-data);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-smooth);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-8px);
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}

.service-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  transition: all 0.3s;
}

.service-card:hover .service-icon {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.2);
  color: var(--accent-data);
}

.service-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.service-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ================================================================
   10. PROJECTS SECTION
================================================================ */
.projects-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 3rem;
  margin-top: 1.5rem;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all 0.3s var(--ease-bounce);
}

.tab-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--grad-data);
  border-color: transparent;
  color: #000;
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.3);
}

.tab-btn.active[data-tab="data"] {
  background: var(--grad-data);
}

.tab-btn.active[data-tab="graphic"] {
  background: var(--grad-design);
  box-shadow: 0 0 24px rgba(255, 107, 107, 0.3);
  color: #fff;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

/* Project card */
.project-card {
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.4s var(--ease-smooth);
  transform-style: preserve-3d;
  perspective: 1000px;
  animation: fadeInUp 0.6s ease both;
}

.project-card:hover {
  transform: translateY(-12px) scale(1.01);
  border-color: var(--border-medium);
  box-shadow: 0 32px 64px rgba(0,0,0,0.5);
}

.project-cover {
  width: 100%;
  background: var(--bg-surface);
  position: relative;
  overflow: hidden;
  /* Height is determined by the image itself — no fixed height */
}

.project-cover img {
  width: 100%;
  height: auto;          /* ← natural image height */
  display: block;
  object-fit: unset;     /* ← don't crop */
  transition: transform 0.5s var(--ease-smooth);
}

.project-card:hover .project-cover img {
  transform: scale(1.03);
}

/* Placeholder when no image — fixed height only for placeholder */
.project-cover-placeholder {
  width: 100%;
  height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
}

.project-cover-placeholder span {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.project-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,8,16,0.8) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card:hover .project-cover-overlay {
  opacity: 1;
}

.project-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  color: #000;
  padding: 10px 22px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  transform: translateY(12px);
  transition: transform 0.3s var(--ease-bounce);
}

.project-card:hover .project-view-btn {
  transform: translateY(0);
}

.project-info {
  padding: 24px;
}

.project-cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.badge-graphic {
  background: rgba(255, 107, 107, 0.1);
  color: var(--accent-design);
  border: 1px solid rgba(255, 107, 107, 0.2);
}

.badge-data {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-data);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.project-short-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-tools {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tool-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

/* ================================================================
   11. CONTACT SECTION
================================================================ */
.contact-section {
  background: radial-gradient(ellipse 80% 50% at 50% 100%, rgba(0,212,255,0.05) 0%, transparent 70%);
}

.contact-section .section-title {
  max-width: 600px;
  margin: 0 auto 1rem;
}

.contact-sub {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3.5rem;
  font-size: 1rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 20px;
  border-radius: 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all 0.3s var(--ease-bounce);
  text-align: center;
}

.contact-card:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
  color: var(--text-primary);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.contact-card-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all 0.3s;
}

.contact-card:hover .contact-card-icon {
  transform: scale(1.1);
}

.contact-card-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
}

.contact-card-value {
  font-size: 0.78rem;
  color: var(--text-muted);
  word-break: break-all;
}

/* Per-platform colors on hover */
.contact-card[data-platform="email"]:hover .contact-card-icon    { background: rgba(234,67,53,0.15); color: #ea4335; }
.contact-card[data-platform="github"]:hover .contact-card-icon   { background: rgba(255,255,255,0.1); color: #fff; }
.contact-card[data-platform="linkedin"]:hover .contact-card-icon { background: rgba(0,119,181,0.15); color: #0077b5; }
.contact-card[data-platform="instagram"]:hover .contact-card-icon { background: rgba(193,53,132,0.15); color: #c13584; }
.contact-card[data-platform="facebook"]:hover .contact-card-icon  { background: rgba(66,103,178,0.15); color: #4267B2; }
.contact-card[data-platform="whatsapp"]:hover .contact-card-icon  { background: rgba(37,211,102,0.15); color: #25D366; }

/* ================================================================
   12. FOOTER
================================================================ */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 32px 0;
  position: relative;
  z-index: 2;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

/* ================================================================
   13. MODAL
================================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease-smooth);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 28px;
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(40px) scale(0.97);
  transition: transform 0.4s var(--ease-bounce);
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.modal-overlay.open .modal {
  transform: none;
}

.modal::-webkit-scrollbar { width: 5px; }
.modal::-webkit-scrollbar-track { background: transparent; }
.modal::-webkit-scrollbar-thumb { background: var(--border-medium); border-radius: 10px; }

.modal-close {
  position: sticky;
  top: 16px;
  float: right;
  margin: 16px 16px 0 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  transform: scale(1.1);
}

.modal-body {
  padding: 32px 40px 48px;
  clear: both;
}

/* Modal internals */
.modal-cover-img {
  width: 100%;
  height: auto;          /* ← natural height */
  display: block;
  object-fit: unset;
  border-radius: 16px;
  margin-bottom: 2rem;
}

.modal-cover-placeholder {
  width: 100%;
  height: 220px;
  border-radius: 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.modal-meta {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  line-height: 1.15;
}

.modal-description {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.modal-section {
  margin-bottom: 2rem;
}

.modal-section-title {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-section-title::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent-data);
}

.modal-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.modal-tool-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-data);
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 5px 12px;
  border-radius: 6px;
}

/* Color palette display */
.modal-palette {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.palette-swatch {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 6px 12px;
}

.swatch-color {
  width: 20px; height: 20px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.1);
}

.swatch-hex {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* Insights list */
.modal-insights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-insights li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.modal-insights li::before {
  content: '→';
  color: var(--accent-data);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Typography list */
.modal-typography {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.font-tag {
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: 8px;
}

/* Gallery grid */
.modal-gallery {
  columns: 2;
  gap: 12px;
  margin-top: 0.5rem;
}

.modal-gallery .gallery-img,
.modal-gallery .gallery-placeholder {
  break-inside: avoid;
  margin-bottom: 12px;
  border-radius: 12px;
}

.gallery-img {
  width: 100%;
  height: auto;          /* ← natural image height */
  display: block;
  object-fit: unset;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: zoom-in;
}

.gallery-img:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}

.gallery-placeholder {
  aspect-ratio: 4/3;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  flex-direction: column;
  gap: 8px;
}

.modal-results-box {
  background: rgba(0,212,255,0.05);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 14px;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
}

.modal-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.modal-info-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 16px;
}

.modal-info-item strong {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.modal-info-item span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ================================================================
   14. ANIMATIONS & KEYFRAMES
================================================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: none; }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: none; }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: none; }
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(40px, 60px); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(-50px, -40px); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translate(0, 0); }
  33%       { transform: translate(30px, -30px); }
  66%       { transform: translate(-20px, 20px); }
}

/* New hero visual keyframes */
@keyframes orbBreath {
  0%, 100% { box-shadow: 0 0 40px rgba(56,189,248,0.5), 0 0 100px rgba(56,189,248,0.25), 0 0 180px rgba(14,165,233,0.15); transform: translate(-50%,-50%) scale(1); }
  50%       { box-shadow: 0 0 60px rgba(56,189,248,0.8), 0 0 130px rgba(56,189,248,0.4), 0 0 220px rgba(14,165,233,0.25); transform: translate(-50%,-50%) scale(1.07); }
}

@keyframes orbRingExpand {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

@keyframes floatCard1 {
  0%, 100% { transform: translateX(-50%) translateY(0px); }
  50%       { transform: translateX(-50%) translateY(-12px); }
}

@keyframes floatCard2 {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-10px); }
}

@keyframes floatCard3 {
  0%, 100% { transform: translateX(-50%) translateY(0px); }
  50%       { transform: translateX(-50%) translateY(10px); }
}

@keyframes floatCard4 {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-14px); }
}

@keyframes dotTwinkle {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50%       { opacity: 1; transform: scale(1.6); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--accent-data); }
  50%       { opacity: 0.5; box-shadow: 0 0 2px var(--accent-data); }
}

@keyframes scrollLineAnim {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ================================================================
   MORPHING DIVIDERS between sections
================================================================ */
.morph-divider {
  position: relative;
  height: 120px;
  overflow: hidden;
  pointer-events: none;
}

.morph-divider svg {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 100%;
}

/* ================================================================
   ANIMATED COUNTER numbers
================================================================ */
.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: var(--grad-data);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1;
  margin-bottom: 4px;
  transition: transform 0.3s var(--ease-bounce);
}

.stat-chip:hover .stat-number {
  transform: scale(1.15);
}

/* ================================================================
   GLITCH TEXT effect on hero title hover
================================================================ */
.hero-title:hover .name-accent {
  animation: glitchText 0.4s ease;
}

@keyframes glitchText {
  0%   { text-shadow: none; }
  20%  { text-shadow: 3px 0 #38bdf8, -3px 0 #818cf8; letter-spacing: -0.06em; }
  40%  { text-shadow: -2px 0 #38bdf8, 2px 0 #818cf8; letter-spacing: -0.02em; }
  60%  { text-shadow: 2px 0 #38bdf8; }
  80%  { text-shadow: none; letter-spacing: -0.05em; }
  100% { text-shadow: none; }
}

/* ================================================================
   MAGNETIC BUTTON effect (handled in JS)
================================================================ */
.btn {
  will-change: transform;
}

/* ================================================================
   TYPING CURSOR after hero role
================================================================ */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent-data);
  margin-left: 4px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ================================================================
   SCROLL PROGRESS BAR at top of page
================================================================ */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--grad-data);
  z-index: 9999;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(56,189,248,0.6);
}

/* ================================================================
   STAGGER FADE for section labels
================================================================ */
.section-label {
  animation: none;
}

.section-label.visible {
  animation: fadeInLeft 0.6s ease both;
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: none; }
}

/* ================================================================
   3D PERSPECTIVE WRAPPER for service cards
================================================================ */
.services-grid {
  perspective: 1200px;
}

/* ================================================================
   SHINE SWEEP on project card hover
================================================================ */
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.06), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  pointer-events: none;
}

.project-card:hover::after {
  left: 160%;
}

/* ================================================================
   ANIMATED GRADIENT BORDER on skill columns
================================================================ */
.skills-column {
  position: relative;
}

.skills-column::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 21px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(56,189,248,0.0), rgba(56,189,248,0.3), rgba(129,140,248,0.3), rgba(56,189,248,0.0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
  background-size: 300% 300%;
  animation: gradientBorderSpin 4s linear infinite;
}

.skills-column:hover::before {
  opacity: 1;
}

@keyframes gradientBorderSpin {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ================================================================
   FLOATING LABELS on contact cards
================================================================ */
.contact-card {
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(56,189,248,0.08), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  border-radius: inherit;
}

.contact-card:hover::before {
  opacity: 1;
}

/* ================================================================
   WAVE ANIMATION on section backgrounds
================================================================ */
.about-section::before,
.contact-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 60% 40% at 20% 50%, rgba(14,165,233,0.04) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 50%, rgba(99,102,241,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ================================================================
   TOOLTIP on tool tags
================================================================ */
.tool-tag {
  position: relative;
  cursor: default;
  transition: all 0.2s;
}

.tool-tag:hover {
  background: rgba(56,189,248,0.1);
  border-color: rgba(56,189,248,0.3);
  color: var(--accent-data);
  transform: translateY(-2px);
}

/* ================================================================
   NEON GLOW on active nav link
================================================================ */
.nav-link.active-link {
  color: var(--accent-data) !important;
  text-shadow: 0 0 12px rgba(56,189,248,0.5);
}
@media (max-width: 960px) {
  :root { --section-pad: 80px; }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-text { order: 1; }
  .hero-visual { order: 0; }

  .hero-badge { margin: 0 auto 1.5rem; }
  .hero-intro { max-width: 100%; }
  .hero-buttons { justify-content: center; }
  .hero-socials { justify-content: center; }

  .hero-sphere-wrapper { width: 260px; height: 260px; }
  .ssl-2, .ssl-4 { display: none; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-photo-frame { width: 260px; height: 300px; }
  .about-stats { max-width: 340px; margin: 20px auto 0; }

  .skills-grid { grid-template-columns: 1fr; }

  .role-cards { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  :root { --section-pad: 60px; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(7, 8, 16, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-hamburger {
    display: flex;
  }

  .navbar {
    position: fixed;
  }

  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .modal-body {
    padding: 20px 20px 36px;
  }

  .modal-info-grid {
    grid-template-columns: 1fr;
  }

  .modal-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-sphere-wrapper { display: none; }
  .hero-visual  { display: none; }
}

@media (max-width: 420px) {
  .services-grid    { grid-template-columns: 1fr; }
  .contact-grid     { grid-template-columns: 1fr; }
  .projects-tabs    { flex-direction: column; align-items: center; }
}
/* ================================================================
   CV DOWNLOAD BUTTON — HERO
================================================================ */
.btn-cv {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 1.5px solid rgba(52, 211, 153, 0.5);
  color: #34d399;
  background: rgba(52, 211, 153, 0.08);
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

.btn-cv:hover {
  background: rgba(52, 211, 153, 0.18);
  border-color: #34d399;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(52, 211, 153, 0.25);
}

/* CV Download Button — About Section */
.btn-cv-about {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 14px 28px;
  border-radius: 12px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1.5px solid rgba(52, 211, 153, 0.4);
  color: #34d399;
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.08), rgba(14, 165, 233, 0.05));
  backdrop-filter: blur(10px);
}

.btn-cv-about:hover {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.18), rgba(14, 165, 233, 0.10));
  border-color: #34d399;
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(52, 211, 153, 0.2);
}

.btn-cv-about .cv-ext-icon {
  margin-left: auto;
  opacity: 0.6;
  font-size: 0.85rem;
}

/* ================================================================
   EXPERIENCE & TRAINING SECTION
================================================================ */
.experience-section {
  position: relative;
  overflow: hidden;
}

.deco-experience {
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
}

/* Tabs */
.exp-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 48px;
  justify-content: center;
  flex-wrap: wrap;
}

.exp-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 50px;
  border: 1.5px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.exp-tab-btn:hover {
  border-color: rgba(56, 189, 248, 0.4);
  color: var(--text-secondary);
}

.exp-tab-btn.active {
  border-color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-blue);
}

/* Timeline container */
.timeline-container {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(56,189,248,0.3) 10%, rgba(56,189,248,0.3) 90%, transparent);
}

.timeline-container.hidden {
  display: none;
}

/* Timeline item */
.timeline-item {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  position: relative;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease calc(var(--item-index, 0) * 0.12s),
              transform 0.5s ease calc(var(--item-index, 0) * 0.12s);
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Dot */
.timeline-dot {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(56,189,248,0.15), rgba(129,140,248,0.10));
  border: 1.5px solid rgba(56,189,248,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent-blue);
  position: relative;
  z-index: 1;
  backdrop-filter: blur(8px);
  flex-direction: column;
}

/* Card */
.timeline-card {
  flex: 1;
  padding: 22px 24px;
  border-radius: 16px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.timeline-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.timeline-title-group {
  flex: 1;
}

.timeline-title {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px;
}

.timeline-company {
  font-size: 0.82rem;
  color: var(--accent-blue);
  font-family: var(--font-mono);
  opacity: 0.85;
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.timeline-period {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.timeline-period i { font-size: 0.85em; }

.timeline-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 14px;
}

/* Type badge */
.exp-type-badge {
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.exp-type-work     { background: rgba(56,189,248,0.12);  color: #38bdf8; border: 1px solid rgba(56,189,248,0.3); }
.exp-type-freelance{ background: rgba(129,140,248,0.12); color: #818cf8; border: 1px solid rgba(129,140,248,0.3); }
.exp-type-intern   { background: rgba(251,191,36,0.12);  color: #fbbf24; border: 1px solid rgba(251,191,36,0.3); }
.exp-type-part     { background: rgba(52,211,153,0.12);  color: #34d399; border: 1px solid rgba(52,211,153,0.3); }
.exp-type-cert     { background: rgba(52,211,153,0.12);  color: #34d399; border: 1px solid rgba(52,211,153,0.3); }
.exp-type-course   { background: rgba(244,114,182,0.12); color: #f472b6; border: 1px solid rgba(244,114,182,0.3); }

/* Tags */
.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.exp-tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border-radius: 50px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-muted);
  transition: all 0.2s;
}

.exp-tag:hover {
  border-color: rgba(56,189,248,0.4);
  color: var(--accent-blue);
}

.exp-empty {
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  padding: 60px 0;
  font-size: 0.875rem;
}

/* ================================================================
   MOBILE RESPONSIVE — 320px to 768px
================================================================ */

/* ── Base Mobile ── */
@media (max-width: 768px) {

  /* Navigation */
  .navbar { padding: 0 16px; height: 60px; }
  .nav-inner { padding: 0; height: 60px; }
  .nav-logo { font-size: 0.7rem; letter-spacing: 0.03em; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav-contact-btn { display: none; }
  
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(4, 7, 18, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    z-index: 999;
  }
  
  .nav-links.open {
    max-height: 360px;
    padding: 16px 0;
  }
  
  .nav-links li { width: 100%; text-align: center; }
  
  .nav-link {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }

  /* Hero Section */
  .hero { padding-top: 80px; min-height: 100svh; }
  .hero-content {
    flex-direction: column;
    gap: 40px;
    padding: 0 20px;
    text-align: center;
    align-items: center;
  }
  
  .hero-text { max-width: 100%; order: 1; }
  .hero-visual { order: 2; width: 100%; display: flex; justify-content: center; }
  
  .hero-sphere-wrapper {
    width: 280px !important;
    height: 280px !important;
  }
  
  .hero-badge {
    justify-content: center;
    font-size: 0.78rem;
  }
  
  .hero-title {
    font-size: clamp(2.2rem, 10vw, 3rem);
    line-height: 1.15;
    margin-bottom: 12px;
  }
  
  .hero-role {
    font-size: clamp(0.9rem, 4vw, 1.1rem);
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
  }
  
  .hero-intro {
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 24px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
  }
  
  .hero-buttons .btn,
  .hero-buttons .btn-cv {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
  
  .hero-socials {
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
  }
  
  .scroll-indicator { display: none; }

  /* Sections */
  .section { padding: 60px 0; }
  .container { padding: 0 20px; }
  .section-title { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  .section-title.centered { text-align: center; }
  .section-label { margin-bottom: 12px; }
  .section-3d-deco { display: none; }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  
  .about-visual { order: 1; }
  .about-text   { order: 2; }
  
  .about-photo-frame {
    width: 200px;
    height: 200px;
    margin: 0 auto;
  }
  
  .about-stats {
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
  }
  
  .stat-chip {
    min-width: 80px;
    padding: 10px 14px;
    text-align: center;
  }
  
  .stat-number { font-size: 1.1rem; }
  .stat-label  { font-size: 0.65rem; }
  
  .role-cards {
    flex-direction: column;
    gap: 12px;
  }
  
  .role-card { padding: 14px 16px; }
  
  .btn-cv-about {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  /* Skills */
  .skills-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .skills-column { padding: 20px 18px; }
  .skills-col-header { margin-bottom: 18px; }

  /* Experience Timeline */
  .timeline-container::before { left: 20px; }
  
  .timeline-item { gap: 16px; }
  
  .timeline-dot {
    width: 40px;
    height: 40px;
    font-size: 1rem;
    flex-shrink: 0;
  }
  
  .timeline-card { padding: 16px; border-radius: 12px; }
  
  .timeline-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .timeline-meta {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .timeline-title { font-size: 0.95rem; }
  .timeline-desc  { font-size: 0.825rem; }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  
  .service-card { padding: 22px 20px; }

  /* Projects */
  .projects-tabs {
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .tab-btn {
    padding: 10px 18px;
    font-size: 0.82rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  
  .contact-card { padding: 18px 14px; }
  .contact-card-label { font-size: 0.75rem; }
  .contact-card-value { font-size: 0.7rem; }
  .contact-card-icon i { font-size: 1.4rem; }
  
  .contact-sub { font-size: 0.9rem; padding: 0 10px; }

  /* Modal */
  .modal {
    max-width: 100%;
    max-height: 92svh;
    border-radius: 20px 20px 0 0;
    margin-top: auto;
  }
  
  .modal-overlay { align-items: flex-end; }
  .modal-body { padding: 20px; }
  .modal-gallery { grid-template-columns: 1fr 1fr; gap: 8px; }
  .modal-cover-img { border-radius: 12px; height: 200px; }
  
  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  
  .footer-socials { justify-content: center; }

  /* Experience tabs */
  .exp-tabs {
    gap: 8px;
    margin-bottom: 32px;
  }
  
  .exp-tab-btn {
    padding: 10px 18px;
    font-size: 0.82rem;
  }
}

/* ── Small Mobile (320–480px) ── */
@media (max-width: 480px) {
  .hero-title { font-size: clamp(1.8rem, 9vw, 2.4rem); }
  .hero-sphere-wrapper { width: 240px !important; height: 240px !important; }
  
  .contact-grid { grid-template-columns: 1fr; }
  
  .about-photo-frame { width: 170px; height: 170px; }
  
  .modal-gallery { grid-template-columns: 1fr; }
  
  .section-title { font-size: clamp(1.4rem, 7vw, 2rem); }
  
  .stat-chip { min-width: 70px; }
  
  .timeline-dot { width: 36px; height: 36px; font-size: 0.9rem; }
  .timeline-container::before { left: 18px; }
}

/* ── Tablet (769–1024px) ── */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero-content { gap: 40px; }
  .hero-sphere-wrapper { width: 340px !important; height: 340px !important; }
  
  .about-grid { gap: 40px; }
  
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid  { grid-template-columns: repeat(3, 1fr); }
  
  .timeline-container { max-width: 100%; }
}