/* ============================================================
   ALEX RIVERA PORTFOLIO — style.css
   Dark/light mode, glassmorphism, premium 2026 aesthetics
   ============================================================ */

/* ── 1. CSS CUSTOM PROPERTIES ── */
:root {
  /* Palette – Dark (default) */
  --bg-primary:    #080b12;
  --bg-secondary:  #0e1320;
  --bg-card:       rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);

  --text-primary:  #f0f4ff;
  --text-secondary:#9aaac8;
  --text-muted:    #5a6a8a;

  --accent-1: #5b8af5;   /* blue */
  --accent-2: #a78bfa;   /* violet */
  --accent-3: #34d399;   /* emerald */

  --grad-main:   linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --grad-glow:   radial-gradient(ellipse 60% 50% at 50% 50%, rgba(91,138,245,0.18), transparent);

  --border:       rgba(255,255,255,0.08);
  --border-hover: rgba(91,138,245,0.4);

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:  0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg:  0 24px 64px rgba(0,0,0,0.6);
  --shadow-glow:0 0 40px rgba(91,138,245,0.25);

  --nav-h: 72px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* ── Light theme overrides ── */
[data-theme="light"] {
  --bg-primary:    #f5f7ff;
  --bg-secondary:  #eef1fb;
  --bg-card:       rgba(255,255,255,0.7);
  --bg-card-hover: rgba(255,255,255,0.9);

  --text-primary:  #0d1333;
  --text-secondary:#3a4a6b;
  --text-muted:    #8a9ab8;

  --border:        rgba(0,0,0,0.08);
  --border-hover:  rgba(91,138,245,0.5);

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:  0 8px 32px rgba(0,0,0,0.1);
  --shadow-lg:  0 24px 64px rgba(0,0,0,0.12);
  --shadow-glow:0 0 40px rgba(91,138,245,0.15);

  --grad-glow: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(91,138,245,0.10), transparent);
}

/* ── 2. RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-1); border-radius: 3px; }

/* Selection */
::selection { background: rgba(91,138,245,0.3); color: var(--text-primary); }

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--accent-1);
  outline-offset: 3px;
  border-radius: 4px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ── 3. TYPOGRAPHY ── */
h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}

em { font-style: normal; }

.accent-gradient {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── 4. LAYOUT ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: 'DM Sans', monospace;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
  margin-bottom: 16px;
}

.section-title em {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 540px;
}

.mt-2 { margin-top: 24px; }

/* ── 5. GLASS CARD ── */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

/* ── 6. BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  border: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--transition);
}

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

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(91,138,245,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(91,138,245,0.5);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.85rem;
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 4px 16px rgba(91,138,245,0.3);
}

.btn-sm:hover { transform: translateY(-2px); }

.btn-full { width: 100%; justify-content: center; }

/* ── 7. LOADER ── */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s, visibility 0.6s;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loader-logo {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 1.4s ease-in-out infinite;
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.loader-fill {
  height: 100%;
  background: var(--grad-main);
  border-radius: 99px;
  animation: loadFill 2s ease-in-out forwards;
}

.loader-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.dots::after {
  content: '...';
  animation: dots 1.2s infinite;
}

@keyframes loadFill {
  0%   { width: 0%; }
  60%  { width: 80%; }
  100% { width: 100%; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

@keyframes dots {
  0%,100% { content: '.'; }
  33%      { content: '..'; }
  66%      { content: '...'; }
}

/* ── 8. CUSTOM CURSOR ── */
#cursor {
  width: 10px;
  height: 10px;
  background: var(--accent-1);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
}

#cursor-follower {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(91,138,245,0.5);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9997;
  transform: translate(-50%, -50%);
  transition: transform 0.12s ease-out, width 0.2s, height 0.2s;
}

body.cursor-hover #cursor { width: 6px; height: 6px; background: var(--accent-2); }
body.cursor-hover #cursor-follower { width: 50px; height: 50px; border-color: rgba(167,139,250,0.5); }

@media (hover: none) {
  #cursor, #cursor-follower { display: none; }
}

/* ── 9. NAVBAR ── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#navbar.scrolled {
  background: rgba(8,11,18,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] #navbar.scrolled {
  background: rgba(245,247,255,0.85);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-right: auto;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: 100px;
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-link.active { color: var(--accent-1); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

#theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
  font-size: 0.9rem;
}

#theme-toggle:hover {
  color: var(--accent-1);
  border-color: var(--accent-1);
  background: var(--bg-card);
}

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

.hamburger span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(8,11,18,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
}

[data-theme="light"] .mobile-menu { background: rgba(245,247,255,0.97); }

.mobile-menu.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  display: block;
  padding: 12px 0;
  font-size: 1.1rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.mobile-menu a:hover { color: var(--accent-1); }
.mobile-menu a:last-child { border: none; }

/* ── 10. HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 60px;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
}

/* Orbs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
  pointer-events: none;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(91,138,245,0.15), transparent 70%);
  top: -200px; left: -200px;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(167,139,250,0.12), transparent 70%);
  bottom: -150px; right: -100px;
  animation-delay: -3s;
}

.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(52,211,153,0.08), transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%       { transform: translate(30px,-20px) scale(1.05); }
  66%       { transform: translate(-20px,30px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--accent-3);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--accent-3);
  border-radius: 50%;
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0.5); }
  50%       { box-shadow: 0 0 0 5px rgba(52,211,153,0); }
}

.hero-name {
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 800;
  line-height: 0.95;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.name-line { display: block; }

.hero-role {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--text-secondary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

.role-prefix { color: var(--text-muted); }

.typed-wrapper { display: inline-flex; align-items: center; gap: 2px; }

.typed-text {
  color: var(--accent-1);
  font-weight: 500;
  min-width: 2px;
}

.typed-cursor {
  color: var(--accent-1);
  animation: blink 0.8s ease-in-out infinite;
  font-weight: 300;
}

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

.hero-tagline {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.br-desktop { display: block; }

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  padding: 24px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
}

.stat {
  text-align: center;
}

.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-sym {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-1);
}

.stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-mouse {
  width: 22px; height: 36px;
  border: 2px solid var(--border);
  border-radius: 11px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-wheel {
  width: 3px; height: 8px;
  background: var(--accent-1);
  border-radius: 99px;
  animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%,100%{ transform:translateX(-50%) translateY(0); }
  50%    { transform:translateX(-50%) translateY(6px); }
}
@keyframes scrollWheel {
  0%{ opacity:1; transform:translateY(0); }
  100%{ opacity:0; transform:translateY(8px); }
}

/* ── 11. ABOUT ── */
.about { background: var(--bg-secondary); }

.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 64px;
  align-items: start;
}

/* Portrait */
.about-visual {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.portrait-frame {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: visible;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portrait-placeholder {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: var(--grad-main);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.portrait-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-primary);
  opacity: 0.6;
}

.portrait-initials {
  font-family: 'Syne', sans-serif;
  font-size: 5rem;
  font-weight: 800;
  color: #fff;
  position: relative;
  z-index: 1;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.portrait-ring {
  position: absolute;
  inset: -12px;
  border: 2px solid rgba(91,138,245,0.3);
  border-radius: inherit;
  animation: ringRotate 8s linear infinite;
}

.ring-2 {
  inset: -24px;
  border-color: rgba(167,139,250,0.15);
  animation-direction: reverse;
  animation-duration: 12s;
}

@keyframes ringRotate { to { transform: rotate(360deg); } }

.portrait-badge {
  position: absolute;
  bottom: -12px;
  right: -12px;
  background: var(--grad-main);
  color: #fff;
  border-radius: 100px;
  padding: 10px 20px;
  font-size: 0.82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(91,138,245,0.4);
}

.about-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.about-card i { color: var(--accent-1); }

/* About content */
.about-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-bio strong { color: var(--text-primary); font-weight: 600; }
.about-bio em { color: var(--accent-1); font-style: italic; }

.skills-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  font-family: 'DM Sans', sans-serif;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.skill-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: default;
}

.skill-pill:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
  background: rgba(91,138,245,0.08);
  transform: translateY(-2px);
}

.skill-pill i { color: var(--accent-1); font-size: 0.9rem; }

.proficiency-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 16px; }

.prof-item {}

.prof-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.prof-pct { color: var(--accent-1); font-weight: 600; }

.prof-bar {
  height: 6px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.prof-fill {
  height: 100%;
  width: 0;
  background: var(--grad-main);
  border-radius: 99px;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* ── 12. PROJECTS ── */
.projects { background: var(--bg-primary); }

.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.filter-tab {
  padding: 10px 22px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
  cursor: pointer;
}

.filter-tab:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
}

.filter-tab.active {
  background: var(--grad-main);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(91,138,245,0.35);
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card.featured {
  grid-column: span 2;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-6px);
}

.project-image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.featured .project-image { aspect-ratio: 2/1; }

.project-thumb {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Thumbnail color themes */
.p-thumb-1 { background: linear-gradient(135deg, #0a1628, #1a2f5a); }
.p-thumb-2 { background: linear-gradient(135deg, #1a0a28, #3d1f6b); }
.p-thumb-3 { background: linear-gradient(135deg, #0a2020, #1a4040); }
.p-thumb-4 { background: linear-gradient(135deg, #281a0a, #5a3a1a); }
.p-thumb-5 { background: linear-gradient(135deg, #0a0a28, #1f1f5a); }
.p-thumb-6 { background: linear-gradient(135deg, #0a2010, #1a4a28); }

[data-theme="light"] .p-thumb-1 { background: linear-gradient(135deg, #ddeeff, #b3d0ff); }
[data-theme="light"] .p-thumb-2 { background: linear-gradient(135deg, #f0ddff, #d4b3ff); }
[data-theme="light"] .p-thumb-3 { background: linear-gradient(135deg, #ddffee, #b3ffda); }
[data-theme="light"] .p-thumb-4 { background: linear-gradient(135deg, #fff5dd, #ffddb3); }
[data-theme="light"] .p-thumb-5 { background: linear-gradient(135deg, #ddddff, #b3b3ff); }
[data-theme="light"] .p-thumb-6 { background: linear-gradient(135deg, #ddfff0, #b3ffe0); }

/* Thumbnail graphics */
.thumb-gfx { position: relative; z-index: 2; }

.gfx-circle {
  width: 120px; height: 120px;
  border: 2px solid rgba(91,138,245,0.5);
  border-radius: 50%;
  animation: slowSpin 10s linear infinite;
  position: relative;
}

.gfx-circle::before {
  content: '';
  position: absolute;
  top: 10px; left: 10px; right: 10px; bottom: 10px;
  border: 1px solid rgba(167,139,250,0.3);
  border-radius: 50%;
}

.gfx-circle::after {
  content: '';
  position: absolute;
  top: 50%; left: -4px;
  width: 8px; height: 8px;
  background: var(--accent-1);
  border-radius: 50%;
  transform: translateY(-50%);
  box-shadow: 0 0 12px var(--accent-1);
}

.gfx-line {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 2px;
  background: var(--grad-main);
  border-radius: 99px;
}

.gfx-line.l2 {
  bottom: -28px;
  width: 40px;
  opacity: 0.5;
}

.gfx-dot {
  position: absolute;
  top: 50%; right: -30px;
  transform: translateY(-50%);
  width: 12px; height: 12px;
  background: var(--accent-2);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--accent-2);
}

@keyframes slowSpin { to { transform: rotate(360deg); } }

/* Phone graphic */
.gfx-phone {
  width: 70px; height: 110px;
  border: 2px solid rgba(167,139,250,0.6);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.gfx-phone::before {
  content: '';
  position: absolute;
  top: 8px; left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 3px;
  background: rgba(167,139,250,0.4);
  border-radius: 99px;
}

.phone-screen {
  width: 54px; height: 74px;
  background: linear-gradient(180deg, rgba(167,139,250,0.2), rgba(91,138,245,0.1));
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.phone-screen::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 200%; height: 2px;
  background: var(--grad-main);
  animation: phoneScan 3s linear infinite;
}

@keyframes phoneScan {
  to { top: 100%; }
}

/* Node graphics */
.gfx-nodes { position: relative; width: 200px; height: 120px; }

.node {
  width: 16px; height: 16px;
  background: var(--accent-3);
  border-radius: 50%;
  position: absolute;
  box-shadow: 0 0 12px rgba(52,211,153,0.5);
}

.node.n1 { top: 45px; left: 32px; }
.node.n2 { top: 20px; left: 92px; background: var(--accent-1); box-shadow: 0 0 12px rgba(91,138,245,0.5); }
.node.n3 { top: 70px; left: 92px; }
.node-lines { position: absolute; inset: 0; width: 100%; height: 100%; color: var(--accent-3); }

/* Store cards graphic */
.gfx-store { position: relative; width: 140px; height: 100px; }
.store-card {
  position: absolute;
  width: 80px; height: 52px;
  border-radius: 8px;
  border: 1px solid rgba(255,165,0,0.3);
  background: rgba(255,165,0,0.08);
}

.sc1 { top: 0; left: 0; transform: rotate(-8deg); }
.sc2 { top: 15px; left: 30px; transform: rotate(-2deg); background: rgba(255,165,0,0.12); }
.sc3 { top: 30px; left: 55px; transform: rotate(5deg); background: rgba(255,165,0,0.06); }

/* AI ring graphic */
.gfx-ai {
  position: relative;
  width: 120px; height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid transparent;
  animation: aiSpin 4s linear infinite;
}

.ai-ring.r1 {
  width: 100%; height: 100%;
  border-top-color: var(--accent-1);
  border-right-color: rgba(91,138,245,0.3);
}

.ai-ring.r2 {
  width: 72%; height: 72%;
  border-bottom-color: var(--accent-2);
  border-left-color: rgba(167,139,250,0.3);
  animation-direction: reverse;
  animation-duration: 3s;
}

@keyframes aiSpin { to { transform: rotate(360deg); } }

.ai-core {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  z-index: 1;
}

/* CLI graphic */
.gfx-cli {
  font-family: monospace;
  font-size: 0.72rem;
  text-align: left;
  line-height: 1.8;
  padding: 12px 16px;
  background: rgba(0,0,0,0.4);
  border-radius: 8px;
  border: 1px solid rgba(52,211,153,0.2);
  min-width: 180px;
}

.cli-line { color: var(--text-secondary); }
.cli-line.success { color: var(--accent-3); }
.cli-line.dim { color: var(--text-muted); }

/* Project overlay */
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8,11,18,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.overlay-btn {
  width: 46px; height: 46px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.9rem;
  transition: all var(--transition);
  backdrop-filter: blur(4px);
}

.overlay-btn:hover {
  background: var(--accent-1);
  border-color: var(--accent-1);
  transform: scale(1.1);
}

/* Project body */
.project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.project-meta { display: flex; gap: 8px; flex-wrap: wrap; }

.project-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-1);
  background: rgba(91,138,245,0.1);
  border: 1px solid rgba(91,138,245,0.2);
  padding: 3px 10px;
  border-radius: 100px;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

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

.project-tech span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 3px 10px;
  border-radius: 100px;
}

.project-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.link-btn:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
}

.link-btn.primary {
  background: var(--grad-main);
  color: #fff;
  border-color: transparent;
}

.link-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(91,138,245,0.4);
}

/* ── 13. EXPERIENCE ── */
.experience { background: var(--bg-secondary); }

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 48px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-1), var(--accent-2), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -42px;
  top: 28px;
  width: 14px; height: 14px;
  background: var(--accent-1);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(91,138,245,0.2), 0 0 12px rgba(91,138,245,0.4);
  z-index: 2;
}

.timeline-card {
  padding: 28px;
  transition: all var(--transition);
}

.timeline-card:hover {
  transform: translateX(4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.tc-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tc-company-logo {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.tc-logo-1 { background: linear-gradient(135deg, #0f5fff, #6e2bff); }
.tc-logo-2 { background: linear-gradient(135deg, #000, #333); }
.tc-logo-3 { background: linear-gradient(135deg, #ff5a5f, #e00b42); }

.tc-meta { flex: 1; }

.tc-role {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  font-family: 'Syne', sans-serif;
}

.tc-company {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

.tc-period {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}

.tc-date {
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.tc-badge {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-3);
  background: rgba(52,211,153,0.1);
  border: 1px solid rgba(52,211,153,0.3);
  padding: 3px 10px;
  border-radius: 100px;
}

.tc-achievements {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.tc-achievements li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.tc-achievements li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-1);
  font-size: 0.75rem;
}

.tc-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tc-tech span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
}

/* ── 14. CONTACT ── */
.contact { background: var(--bg-primary); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
}

.contact-icon {
  width: 44px; height: 44px;
  background: rgba(91,138,245,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-1);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.contact-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
  transition: color var(--transition);
}

a.contact-value:hover { color: var(--accent-1); }

/* Social links */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.social-btn {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all var(--transition);
}

.social-btn:hover {
  background: var(--grad-main);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(91,138,245,0.35);
}

/* Form */
.form-card { padding: 36px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
  outline: none;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(91,138,245,0.15);
}

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  padding: 40px 20px;
  color: var(--accent-3);
}

.form-success i { font-size: 3rem; }
.form-success p { color: var(--text-secondary); }

/* ── 15. FOOTER ── */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

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

.footer-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-copy i { color: #f87171; }

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--accent-1); }

/* ── 16. REVEAL ANIMATIONS ── */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }

.reveal-up.in-view,
.reveal-left.in-view,
.reveal-right.in-view {
  opacity: 1;
  transform: none;
}

/* Stagger children inside .projects-grid */
.projects-grid .project-card:nth-child(1) { transition-delay: 0.0s; }
.projects-grid .project-card:nth-child(2) { transition-delay: 0.1s; }
.projects-grid .project-card:nth-child(3) { transition-delay: 0.2s; }
.projects-grid .project-card:nth-child(4) { transition-delay: 0.05s; }
.projects-grid .project-card:nth-child(5) { transition-delay: 0.15s; }
.projects-grid .project-card:nth-child(6) { transition-delay: 0.25s; }

/* Filter fade */
.project-card.hidden-card {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  visibility: hidden;
}

/* ── 17. RESPONSIVE ── */

/* Tablet */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 280px 1fr;
    gap: 40px;
  }

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

  .project-card.featured {
    grid-column: span 2;
  }

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

  .contact-info {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .contact-card { flex: 1; min-width: 200px; }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-visual {
    position: static;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
  }

  .portrait-frame {
    width: 200px;
    flex-shrink: 0;
  }

  .section { padding: 80px 0; }
}

/* Mobile */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions .btn-sm { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }

  .hero-name { font-size: clamp(3rem, 12vw, 5rem); }
  .hero-stats { gap: 20px; padding: 18px 24px; flex-wrap: wrap; justify-content: center; }
  .stat-divider { display: none; }

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

  .project-card.featured { grid-column: span 1; }

  .timeline { padding-left: 36px; }

  .tc-header { flex-direction: column; }
  .tc-period { align-items: flex-start; }

  .form-row { grid-template-columns: 1fr; }

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

  .br-desktop { display: none; }
}

@media (max-width: 480px) {
  .hero-stats { gap: 12px; }
  .section-title { font-size: 2.2rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .social-links { flex-wrap: wrap; }
}