/* ═══════════════════════════════════════════════════════════
   Premium Portfolio — Zoox-inspired Cinematic Design 2026
   ═══════════════════════════════════════════════════════════ */

/* ── Tokens ── */
:root {
  --black: #000000;
  --rich-black: #050505;
  --bg: #0a0a0a;
  --bg-alt: #111111;
  --surface: rgba(255, 255, 255, 0.02);
  --surface-hover: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.15);

  --text: #f5f5f5;
  --text-secondary: #a1a1a1;
  --text-muted: #666666;

  --accent: #a855f7; /* vivid purple */
  --accent-hover: #c084fc;
  --accent-glow: rgba(168, 85, 247, 0.25);
  --gradient: linear-gradient(135deg, #a855f7, #6366f1, #06b6d4);

  --aws: #ff9900;
  --azure: #0078d4;
  --gcp: #fbbc04;

  --font: "Space Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", monospace;

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 12px;
  --radius-sm: 8px;
}

/* ── Light mode ── */
body.light-mode {
  background-image: radial-gradient(circle at 15% 50%, rgba(168, 85, 247, 0.03), transparent 40%),
                    radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.03), transparent 40%);
  --bg: #fdfdfd;
  --bg-alt: #f5f5f5;
  --surface: rgba(0, 0, 0, 0.02);
  --surface-hover: rgba(0, 0, 0, 0.04);
  --border: rgba(0, 0, 0, 0.05);
  --border-hover: rgba(0, 0, 0, 0.15);
  --text: #111111;
  --text-secondary: #555555;
  --text-muted: #999999;
  --accent-glow: rgba(168, 85, 247, 0.12);
}
body.light-mode .hero-grain {
  opacity: 0.015;
}
body.light-mode .navbar.scrolled {
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}
body.light-mode .card-img.placeholder {
  color: rgba(255, 255, 255, 0.9);
}

/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--font);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 60%, rgba(168, 85, 247, 0.04), transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 30%, rgba(6, 182, 212, 0.03), transparent 50%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
button {
  font-family: inherit;
  cursor: none;
}
ul {
  list-style: none;
}

/* ── Custom Cursor ── */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition:
    width 0.2s var(--ease),
    height 0.2s var(--ease),
    background 0.2s;
}
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition:
    width 0.35s var(--ease-out),
    height 0.35s var(--ease-out),
    border-color 0.35s,
    opacity 0.35s;
}
body.cursor-hover .cursor-dot {
  width: 14px;
  height: 14px;
  background: var(--accent-hover);
}
body.cursor-hover .cursor-ring {
  width: 60px;
  height: 60px;
  border-color: var(--accent-hover);
  opacity: 0.5;
}

@media (hover: none) {
  .cursor-dot,
  .cursor-ring {
    display: none;
  }
  body {
    cursor: auto;
  }
  a,
  button {
    cursor: pointer;
  }
}

/* ── Scroll Progress ── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient);
  z-index: 10001;
  width: 0;
  transition: none;
  box-shadow: 0 0 12px var(--accent-glow), 0 0 4px var(--accent);
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  transition:
    background 0.4s var(--ease),
    backdrop-filter 0.4s;
}
.navbar.scrolled {
  background: rgba(10, 10, 10, 0.6);
  backdrop-filter: blur(28px) saturate(1.6);
  -webkit-backdrop-filter: blur(28px) saturate(1.6);
  border-bottom: 1px solid var(--border);
}
body.light-mode .navbar.scrolled {
  background: rgba(250, 250, 250, 0.85);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-dot {
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
  transition: color 0.3s;
}
.nav-link:hover,
.nav-link.active {
  color: var(--text);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  transition: all 0.3s;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s var(--ease);
  border-radius: 2px;
}
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -50%;
  background:
    radial-gradient(ellipse 60% 50% at 20% 40%, rgba(168, 85, 247, 0.12), transparent),
    radial-gradient(ellipse 50% 60% at 80% 20%, rgba(6, 182, 212, 0.10), transparent),
    radial-gradient(ellipse 40% 40% at 60% 80%, rgba(99, 102, 241, 0.08), transparent);
  animation: hero-mesh 12s ease-in-out infinite alternate;
  z-index: 0;
}
@keyframes hero-mesh {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-3%, 2%) scale(1.05); }
  100% { transform: translate(2%, -3%) scale(1); }
}
.hero-grain {
  position: absolute;
  inset: 0;
  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='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}
.hero-container {
  position: relative;
  z-index: 1;
  padding: 0 1.5rem;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

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

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  min-height: 2rem;
}
.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

.hero-badges {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.3s;
}
.badge:hover {
  border-color: var(--border-hover);
  color: var(--text);
  box-shadow: 0 0 16px rgba(168, 85, 247, 0.1);
}
.badge {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.badge-aws:hover {
  border-color: var(--aws);
  color: var(--aws);
}
.badge-azure:hover {
  border-color: var(--azure);
  color: var(--azure);
}
.badge-gcp:hover {
  border-color: var(--gcp);
  color: var(--gcp);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.6s;
}
.btn-primary:hover::before {
  left: 100%;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.3s;
}
.btn-outline:hover {
  border-color: var(--text);
  color: var(--text);
  transform: translateY(-2px);
}

.hero-social {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
}
.hero-social a {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all 0.3s;
}
.hero-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 0 20px var(--accent-glow);
}

.scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 20px;
  position: relative;
}
.scroll-mouse span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 3px;
  height: 8px;
  background: var(--text-muted);
  border-radius: 3px;
  transform: translateX(-50%);
  animation: scroll-anim 2s infinite;
}
@keyframes scroll-anim {
  0% {
    top: 8px;
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  100% {
    top: 26px;
    opacity: 0;
  }
}
.scroll-hint p {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Container / Section ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.section {
  padding: clamp(5rem, 12vw, 10rem) 0;
}
.section-alt {
  background: var(--bg-alt);
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: var(--surface);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
}
.section-label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.section-heading {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin-bottom: 3rem;
  background: linear-gradient(180deg, var(--text) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-heading em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Reveal Animation ── */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 4rem;
  align-items: start;
}
.about-photo {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
}
.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.photo-border {
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius) + 2px);
  background: conic-gradient(from var(--border-angle), #a855f7 0%, #6366f1 20%, transparent 40%, transparent 80%, #06b6d4 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.8;
  animation: border-spin 6s linear infinite;
}

@property --border-angle {
  syntax: "<angle>";
  inherits: true;
  initial-value: 0turn;
}

@keyframes border-spin {
  0% { --border-angle: 0turn; }
  100% { --border-angle: 1turn; }
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}
.about-text strong {
  color: var(--text);
}

.about-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.mini-stat {
  text-align: center;
}
.mini-stat-num {
  display: block;
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mini-stat-num::after {
  content: "+";
  font-size: 1.5rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mini-stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ── Timeline ── */
.timeline {
  max-width: 800px;
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--border) 30%, var(--border) 70%, transparent);
}

.tl-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2.5rem;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: -1.95rem;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--bg);
  box-shadow: 0 0 12px var(--accent-glow), 0 0 4px var(--accent-glow);
}
.section-alt .tl-item::before {
  background: var(--bg-alt);
}

.tl-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  font-family: var(--mono);
}

.tl-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all 0.4s var(--ease);
}
.tl-card:hover {
  border-color: var(--border-hover);
  transform: translateX(6px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}
.tl-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.tl-card h4 {
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 500;
}
.tl-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tags span {
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(168, 85, 247, 0.06);
  color: var(--accent);
  border: 1px solid rgba(168, 85, 247, 0.15);
  transition: all 0.3s;
}
.tags span:hover {
  background: rgba(168, 85, 247, 0.15);
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 0 8px rgba(168, 85, 247, 0.15);
}

/* ── Marquee ── */
.marquee-section {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg);
}
.marquee {
  position: relative;
  width: 100%;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex;
  gap: 2rem;
  white-space: nowrap;
  animation: marquee-scroll 30s linear infinite;
  width: max-content;
}
.marquee-track span {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.marquee-dot {
  color: var(--accent);
}
@keyframes marquee-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* ── Skills ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.skill-card {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all 0.5s var(--ease);
  position: relative;
}
.skill-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, var(--accent) 100%);
  -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;
}
.skill-card:hover::before {
  opacity: 1;
}
.skill-card:hover {
  border-color: transparent;
  transform: translateY(-6px);
  box-shadow: 0 20px 60px var(--accent-glow);
}

.skill-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: rgba(168, 85, 247, 0.1);
  color: var(--accent);
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}
.skill-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1rem;
}
.skill-card li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
}
.skill-card li:last-child {
  border: none;
}

/* ── Projects ── */
.project-filters {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.5rem 1.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.3s;
}
.filter-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text);
}
.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.5s var(--ease);
  display: flex;
  flex-direction: column;
}
.project-card.hidden {
  display: none;
}
.project-card:hover {
  border-color: rgba(168, 85, 247, 0.3);
  transform: translateY(-8px);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3), 0 0 40px var(--accent-glow);
}
body.light-mode .project-card:hover {
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.08);
}

.card-img {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--bg);
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.project-card:hover .card-img img {
  transform: scale(1.06);
}

.card-img.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3rem;
  background-size: 200% 200%;
  animation: grad-shift 6s ease infinite;
}
@keyframes grad-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.ikano-grad {
  background: linear-gradient(135deg, #ff9900, #146eb4, #232f3e);
}
.rubin-grad {
  background: linear-gradient(135deg, #cc785c, #8b5cf6, #3b82f6);
}
.tesla-grad {
  background: linear-gradient(135deg, #cc0000, #1a1a2e, #e94560);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  transition: opacity 0.3s;
}
.project-card:hover .card-overlay {
  opacity: 1;
}
.card-overlay a {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 0.95rem;
  transition: transform 0.2s;
}
.card-overlay a:hover {
  transform: scale(1.15);
}

.card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  width: fit-content;
  background: rgba(168, 85, 247, 0.12);
  color: var(--accent);
  border: 1px solid rgba(168, 85, 247, 0.2);
}
.card-badge.oss-badge {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.2);
}
.card-badge.ai-badge {
  background: rgba(6, 182, 212, 0.1);
  color: #06b6d4;
  border-color: rgba(6, 182, 212, 0.2);
}
.card-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.card-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex: 1;
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* ── Publications ── */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.pub-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  padding-left: 1.75rem;
  overflow: hidden;
  transition: all 0.4s var(--ease);
}
.pub-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
}
.pub-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.4s;
}
.pub-card:hover::after {
  opacity: 1;
}
.pub-accent {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--c);
}
.pub-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.pub-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}
.contact-item i {
  font-size: 1.4rem;
  color: var(--accent);
  margin-top: 0.25rem;
}
.contact-item h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.contact-item a {
  color: var(--accent);
  transition: opacity 0.2s;
}
.contact-item a:hover {
  opacity: 0.7;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-form input,
.contact-form textarea {
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color 0.3s;
  outline: none;
}
.contact-form textarea {
  resize: vertical;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.contact-form .btn-primary {
  align-self: flex-start;
  border: none;
}

/* ── Footer ── */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-inner p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: 1.25rem;
}
.footer-links a {
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: color 0.3s;
}
.footer-links a:hover {
  color: var(--accent);
}

/* ═══════════════ Responsive ═══════════════ */
@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pub-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .about-photo {
    max-width: 280px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    inset: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
    z-index: 9998;
  }
  .nav-menu.active {
    opacity: 1;
    pointer-events: all;
  }
  .nav-link {
    font-size: 1.3rem;
    text-transform: none;
  }
  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2.5rem, 10vw, 4.5rem);
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .pub-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .about-grid {
    text-align: center;
  }
  .about-stats {
    justify-content: center;
  }
  .about-photo {
    margin: 0 auto;
  }
  .footer-inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-badges {
    flex-direction: column;
    align-items: center;
  }
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  .about-stats {
    gap: 1.25rem;
  }
  .mini-stat-num {
    font-size: 2rem;
  }
  .tl-item {
    padding-left: 1.5rem;
  }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ── Selection ── */
::selection {
  background: var(--accent);
  color: #fff;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}

/* Generic Project Gradients */
.ai-grad { background: linear-gradient(135deg, #1d4ed8, #9333ea, #ec4899); }
.finops-grad { background: linear-gradient(135deg, #047857, #10b981, #34d399); }
.cloud-grad { background: linear-gradient(135deg, #1e3a8a, #3b82f6, #93c5fd); }
.dev-grad { background: linear-gradient(135deg, #374151, #4b5563, #9ca3af); }
.security-grad { background: linear-gradient(135deg, #991b1b, #ef4444, #f87171); }
.monitor-grad { background: linear-gradient(135deg, #b45309, #f59e0b, #fcd34d); }

/* ── Hero Status Badge ── */
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1.2rem;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  font-size: 0.8rem;
  font-weight: 500;
  color: #10b981;
  margin-bottom: 1.5rem;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}

/* ── Footer muted ── */
.footer-inner p {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ── Blur-to-Sharp Page Entrance ── */
body {
  animation: page-sharpen 1.2s var(--ease-out) forwards;
}
@keyframes page-sharpen {
  0% {
    filter: blur(12px) saturate(0.6) brightness(0.8);
    opacity: 0.3;
    transform: scale(1.02);
  }
  40% {
    filter: blur(4px) saturate(0.9) brightness(0.95);
    opacity: 0.7;
  }
  100% {
    filter: blur(0) saturate(1) brightness(1);
    opacity: 1;
    transform: scale(1);
  }
}
/* Prevent flash — hide until animation kicks in */
body:not(.light-mode):not([style]) {
  will-change: filter, opacity, transform;
}
@media (prefers-reduced-motion: reduce) {
  body { animation: none !important; filter: none; opacity: 1; }
}