/* ==========================================================================
   ATELIER — Portfolio Stylesheet
   Warm editorial design with terracotta accent on deep charcoal.
   Typography: Fraunces (display) + Sora (body) + JetBrains Mono (labels)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CUSTOM PROPERTIES
   -------------------------------------------------------------------------- */

:root {
  /* Colors — Dark Theme (default) */
  --bg-primary: #050816;
  --bg-surface: #0b1226;
  --bg-elevated: #111a32;
  --bg-elevated-2: #172447;
  --text-primary: #f7f9ff;
  --text-secondary: #9faed2;
  --text-tertiary: #7583a8;
  --accent: #ff5a36;
  --accent-hover: #ff744e;
  --accent-subtle: rgba(255, 90, 54, 0.14);
  --border: #233157;
  --border-light: #2f4172;
  --grid-color: rgba(89, 130, 255, 0.11);
  --shadow-color: rgba(1, 5, 16, 0.72);
  --accent-cyan: #36f1ff;
  --accent-cyan-subtle: rgba(54, 241, 255, 0.2);

  /* Typography */
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Manrope", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  /* Type Scale (fluid) */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.9rem);
  --text-base: clamp(0.95rem, 0.88rem + 0.35vw, 1.1rem);
  --text-lg: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  --text-xl: clamp(1.4rem, 1.1rem + 1.5vw, 2.2rem);
  --text-2xl: clamp(2rem, 1.4rem + 3vw, 4rem);
  --text-3xl: clamp(2.5rem, 1.5rem + 5vw, 6rem);
  --text-hero: clamp(3.5rem, 2rem + 8vw, 10rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-3xl: 8rem;
  --space-section: clamp(6rem, 8vw, 12rem);

  /* Layout */
  --container-max: 1320px;
  --container-pad: clamp(1.25rem, 4vw, 4rem);

  /* Animation */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 700ms;
  --duration-slower: 1000ms;

  /* Misc */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --nav-height: 72px;
}

/* Light Theme */
body.light-theme {
  --bg-primary: #eef2ff;
  --bg-surface: #f7f9ff;
  --bg-elevated: #ffffff;
  --bg-elevated-2: #ffffff;
  --text-primary: #0f1a3d;
  --text-secondary: #40517f;
  --text-tertiary: #5f6f9a;
  --accent: #e94724;
  --accent-hover: #ff5e38;
  --accent-subtle: rgba(233, 71, 36, 0.08);
  --border: #d5def6;
  --border-light: #e8edff;
  --grid-color: rgba(35, 71, 168, 0.08);
  --shadow-color: rgba(0, 0, 0, 0.08);
  --accent-cyan: #007c96;
  --accent-cyan-subtle: rgba(0, 124, 150, 0.17);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(circle at 18% 8%, rgba(44, 113, 255, 0.18), transparent 36%),
    radial-gradient(circle at 86% 0%, rgba(255, 90, 54, 0.14), transparent 42%),
    radial-gradient(circle at 70% 92%, rgba(54, 241, 255, 0.08), transparent 32%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition:
    background-color 0.5s ease,
    color 0.5s ease;
}

body.menu-open {
  overflow: hidden;
}

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

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

/* --------------------------------------------------------------------------
   CUSTOM MODERN SCROLLBAR
   -------------------------------------------------------------------------- */

/* Applies globally and matches the bold editorial aesthetic. 
   Works gracefully across light/dark themes using variables. */
.fancy-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: var(--border-light) var(--bg-primary);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-left: 1px solid var(--border);
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 20px;
  border: 2px solid var(--bg-primary); /* Negative space for floating effect */
  background-clip: padding-box;
  transition: background-color var(--duration-fast) ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-corner {
  background: var(--bg-primary);
}

/* --------------------------------------------------------------------------
   SCROLLBAR UTILITIES
   -------------------------------------------------------------------------- */

/* Hide scrollbar completely while keeping scroll functionality */
html, .hide-scrollbar {
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none;    /* Firefox */
}

.hide-scrollbar::-webkit-scrollbar {
  display: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  outline: none;
}

ul,
ol {
  list-style: none;
}

address {
  font-style: normal;
}

strong {
  font-weight: 600;
  color: var(--text-primary);
}

::selection {
  background: var(--accent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. LAYOUT
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

/* --------------------------------------------------------------------------
   4. GRAIN OVERLAY
   -------------------------------------------------------------------------- */

.grain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
}

.grain::after {
  content: "";
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.028;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   4b. CUSTOM CURSOR
   -------------------------------------------------------------------------- */

@media (pointer: fine) {
  * {
    cursor: none !important;
  }

  .cursor {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10000;
    pointer-events: none;
  }

  .cursor__dot {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    transform: translate(-50%, -50%);
    transition:
      transform 0.1s ease,
      opacity 0.2s ease;
    will-change: transform;
  }

  .cursor__ring {
    position: absolute;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(199, 93, 58, 0.45);
    transform: translate(-50%, -50%);
    transition:
      transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      width 0.4s cubic-bezier(0.16, 1, 0.3, 1),
      height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
      border-color 0.3s ease,
      opacity 0.3s ease;
    will-change: transform;
  }

  .cursor.is-hovering .cursor__ring {
    width: 56px;
    height: 56px;
    border-color: rgba(199, 93, 58, 0.7);
    background: rgba(199, 93, 58, 0.04);
  }

  .cursor.is-hovering .cursor__dot {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }

  .cursor.is-clicking .cursor__ring {
    width: 28px;
    height: 28px;
    border-color: var(--accent);
  }

  .cursor.is-clicking .cursor__dot {
    transform: translate(-50%, -50%) scale(1.5);
  }
}

/* --------------------------------------------------------------------------
   5. TYPOGRAPHY
   -------------------------------------------------------------------------- */

.section__header {
  margin-bottom: var(--space-2xl);
}

.section__number {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section__header::after {
  content: "";
  display: block;
  width: 48px;
  height: 1px;
  background: var(--accent);
  margin-top: var(--space-lg);
}

/* --------------------------------------------------------------------------
   6. BUTTONS
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-base) var(--ease-out-expo);
  position: relative;
  white-space: nowrap;
}

.btn svg {
  transition: transform var(--duration-base) var(--ease-out-expo);
  flex-shrink: 0;
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(199, 93, 58, 0.25);
}

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

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

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

/* --------------------------------------------------------------------------
   7. REVEAL ANIMATIONS
   -------------------------------------------------------------------------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Hero stagger delays */
.hero [data-delay="1"] {
  transition-delay: 150ms;
}
.hero [data-delay="2"] {
  transition-delay: 300ms;
}
.hero [data-delay="3"] {
  transition-delay: 450ms;
}
.hero [data-delay="4"] {
  transition-delay: 600ms;
}
.hero [data-delay="5"] {
  transition-delay: 800ms;
}

/* Hero title: disable the parent translateY so lines can do their own clip reveal */
.hero__title[data-reveal] {
  transform: none !important;
  transition: opacity var(--duration-slow) var(--ease-out-expo) 150ms !important;
}

.hero__title[data-reveal].revealed .hero__title-line--clip:nth-child(1) {
  animation: lineReveal 0.9s var(--ease-out-expo) 0.15s both;
}

.hero__title[data-reveal].revealed .hero__title-line--clip:nth-child(2) {
  animation: lineReveal 0.9s var(--ease-out-expo) 0.32s both;
}

/* --------------------------------------------------------------------------
   8. NAVIGATION
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition:
    background-color var(--duration-base) ease,
    box-shadow var(--duration-base) ease;
}

.nav.scrolled {
  background: rgba(13, 13, 12, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.light-theme .nav.scrolled {
  background: rgba(244, 237, 230, 0.88);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
  transition: color var(--duration-fast) ease;
}

.accent-dot {
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  position: relative;
  transition: color var(--duration-fast) ease;
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

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

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-secondary);
  transition:
    color var(--duration-fast) ease,
    background var(--duration-fast) ease;
}

.theme-toggle:hover {
  color: var(--text-primary);
  background: var(--accent-subtle);
}

.icon-moon {
  display: none;
}
.light-theme .icon-sun {
  display: none;
}
.light-theme .icon-moon {
  display: block;
}

/* Burger */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 6px;
}

.nav__burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition:
    transform var(--duration-base) var(--ease-out-expo),
    opacity var(--duration-fast) ease;
  transform-origin: center;
}

.nav__burger.open span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.nav__burger.open span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-base) ease,
    visibility var(--duration-base) ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-base) ease,
    transform var(--duration-base) var(--ease-out-expo),
    color var(--duration-fast) ease;
}

.mobile-menu.open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.open .mobile-menu__link:nth-child(1) {
  transition-delay: 80ms;
}
.mobile-menu.open .mobile-menu__link:nth-child(2) {
  transition-delay: 140ms;
}
.mobile-menu.open .mobile-menu__link:nth-child(3) {
  transition-delay: 200ms;
}
.mobile-menu.open .mobile-menu__link:nth-child(4) {
  transition-delay: 260ms;
}
.mobile-menu.open .mobile-menu__link:nth-child(5) {
  transition-delay: 320ms;
}

.mobile-menu.open .mobile-menu__link:nth-child(6) {
  transition-delay: 380ms;
}

.mobile-menu__link:hover {
  color: var(--accent);
}

.mobile-menu__footer {
  display: flex;
  gap: 1.5rem;
  opacity: 0;
  transition: opacity var(--duration-base) ease;
  transition-delay: 0ms;
}

.mobile-menu.open .mobile-menu__footer {
  opacity: 1;
  transition-delay: 350ms;
}

.mobile-menu__footer a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) ease;
}

.mobile-menu__footer a:hover {
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   9. HERO
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--nav-height) var(--container-pad) 2rem;
  perspective: 1400px;
}

/* Subtle grid pattern */
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(
    ellipse 85% 85% at 50% 50%,
    black 10%,
    transparent 70%
  );
  /* -webkit-mask-image: radial-gradient(ellipse 65% 55% at 50% 50%, black 10%, transparent 70%); */
  z-index: 0;
}

/* Mouse-following glow */
.hero__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle 500px at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(199, 93, 58, 0.045),
    transparent 70%
  );
  z-index: 0;
  pointer-events: none;
  transition: background 0.3s ease;
}

.light-theme .hero__glow {
  background: radial-gradient(
    circle 500px at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(184, 80, 47, 0.04),
    transparent 70%
  );
}

.hero__container {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  transform-style: preserve-3d;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.hero__eyebrow-sep {
  color: var(--accent);
  margin: 0 0.15rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  text-shadow:
    0 14px 32px rgba(3, 10, 24, 0.55),
    0 0 14px rgba(54, 241, 255, 0.14);
}

.hero__title-line {
  display: block;
  overflow: hidden;
}

.hero__title-line--clip {
  display: block;
  overflow: hidden;
}

.hero__title-line--accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__divider {
  width: 56px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto var(--space-lg);
  transform-origin: center;
  transform: scaleX(0);
}

.hero__divider.revealed {
  transform: scaleX(1);
  transition: transform var(--duration-slower) var(--ease-out-expo) 300ms;
}

.hero__tagline {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.65;
  font-weight: 300;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

/* Hero Stats */
.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: var(--space-xl) var(--space-xl);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(11, 18, 38, 0.95), rgba(17, 26, 50, 0.8));
  box-shadow: 0 18px 40px rgba(2, 8, 25, 0.45);
  min-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.hero__stat-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero__stat-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.hero__stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  flex-shrink: 0;
}

/* Social (vertical, left side) */
.hero__social {
  position: absolute;
  bottom: 10.5rem;
  left: var(--container-pad);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  z-index: 2;
}

.hero__social a {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  transition: color var(--duration-fast) ease;
  writing-mode: vertical-rl;
  display: grid;
  place-items: center;
  min-width: 1.2rem;
  min-height: 1.2rem;
}

.hero__social a > * {
  grid-area: 1 / 1;
  transition:
    transform 0.35s cubic-bezier(0.65, 0, 0.35, 1),
    opacity 0.3s ease;
}

.hero__social-text {
  display: inline-block;
  opacity: 1;
  transform: translateX(0);
}

.hero__social-icon {
  writing-mode: horizontal-tb;
  font-size: 1rem;
  opacity: 0;
  transform: translateX(10px);
  color: var(--accent);
}

.hero__social a:hover .hero__social-text {
  transform: translateX(-10px);
  opacity: 0;
}

.hero__social a:hover .hero__social-icon {
  transform: translateX(0);
  opacity: 1;
}

.hero__social a:hover {
  color: var(--accent);
}

/* Scroll indicator (right side) */
.hero__scroll {
  position: absolute;
  bottom: 10.5rem;
  right: var(--container-pad);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  z-index: 2;
}

.hero__scroll span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  writing-mode: vertical-rl;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: var(--border);
  position: relative;
  overflow: hidden;
  border-radius: 1px;
}

.scroll-line__fill {
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-cyan));
  border-radius: 1px;
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% {
    top: -50%;
  }
  100% {
    top: 150%;
  }
}

/* --------------------------------------------------------------------------
   10. ABOUT
   -------------------------------------------------------------------------- */

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

.about__quote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  font-style: italic;
  line-height: 1.5;
  color: var(--text-secondary);
  padding-left: var(--space-lg);
  border-left: 2px solid var(--accent);
  max-width: 560px;
}

.about__intro {
  font-size: var(--text-lg);
  line-height: 1.75;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  font-weight: 300;
}

.about__text {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.about__columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.about__col-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.about__list li {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--duration-fast) ease;
}

.about__list li:last-child {
  border-bottom: none;
}

.about__list li:hover {
  color: var(--text-primary);
}

.about__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   11. SKILLS & MARQUEE
   -------------------------------------------------------------------------- */

/* Marquee */
.marquee {
  width: 100%;
  overflow: hidden;
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-2xl);
}

.marquee__track {
  display: flex;
  align-items: center;
  white-space: nowrap;
  animation: marqueeScroll 35s linear infinite;
  will-change: transform;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__item {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 1.2rem + 3vw, 4rem);
  font-weight: 400;
  color: var(--text-primary);
  opacity: 0.15;
  padding: 0 0.3rem;
  transition: opacity var(--duration-base) ease;
  user-select: none;
}

.marquee:hover .marquee__item {
  opacity: 0.3;
}

.marquee__sep {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1rem + 2vw, 3rem);
  color: var(--accent);
  opacity: 0.3;
  padding: 0 0.8rem;
  user-select: none;
}

@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Skills Grid */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.skill-group {
  padding: var(--space-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition:
    border-color var(--duration-base) ease,
    transform var(--duration-base) var(--ease-out-expo);
}

.skill-group:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.skill-group__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.skill-group__list li {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
  transition:
    color var(--duration-fast) ease,
    padding-left var(--duration-base) var(--ease-out-expo);
}

.skill-group__list li i {
  font-size: 1.5rem;
  opacity: 0;
  transition: all var(--duration-base) var(--ease-out-expo), transform var(--duration-base) var(--ease-out-expo);
}

.skill-group__list li:hover i {
  opacity: 1;
  transform: translateX(4px);
  color: var(--accent);
}

.skill-group__list li:last-child {
  border-bottom: none;
}

.skill-group__list li:hover {
  color: var(--text-primary);
  padding-left: 0.5rem;
}

/* --------------------------------------------------------------------------
   12. WORK & PROJECTS
   -------------------------------------------------------------------------- */

.work {
  position: relative;
}

.projects {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.2rem);
}

.project {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(1rem, 2.2vw, 1.8rem);
  align-items: stretch;
  padding: clamp(1rem, 2.2vw, 1.4rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(13, 20, 42, 0.82), rgba(7, 11, 24, 0.94));
  box-shadow: 0 12px 28px rgba(1, 5, 16, 0.34);
  transition:
    border-color var(--duration-base) ease,
    transform var(--duration-base) var(--ease-out-expo),
    box-shadow var(--duration-base) ease;
}

.light-theme .project {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(242, 246, 255, 0.95));
  box-shadow: 0 10px 24px rgba(15, 30, 72, 0.1);
}

.project:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.7);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.36);
}

.project--reverse {
  grid-template-columns: 1fr 1.05fr;
}

.project--reverse .project__image {
  order: 2;
}

.project--reverse .project__info {
  order: 1;
}

.project__image {
  position: relative;
  display: block;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #0a1124;
  border: 1px solid var(--border);
  transition:
    border-color var(--duration-base) ease,
    transform var(--duration-base) var(--ease-out-expo);
}

.project__image:hover {
  border-color: rgba(37, 99, 235, 0.75);
  transform: translateY(-2px);
}

.project__image img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.project__preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  z-index: 1;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) ease;
  background: var(--bg-surface);
}

.project__image.is-live .project__preview {
  opacity: 1;
}

.project__image.is-live img {
  opacity: 0;
  transform: none;
}

.project__image:hover img {
  transform: scale(1.04);
}

.project__image-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(120deg, rgba(6, 12, 28, 0.1), rgba(6, 12, 28, 0.74));
  z-index: 2;
  opacity: 0;
  transition: opacity var(--duration-base) ease;
  color: #fff;
}

.project__image:hover .project__image-overlay {
  opacity: 1;
}

.project__number {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 0.9vw, 0.78rem);
  font-weight: 500;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: rgba(163, 177, 210, 0.88);
  line-height: 1;
  margin-bottom: 0.75rem;
  transition: color var(--duration-base) ease;
}

.project:hover .project__number {
  color: #7ca2ff;
}

.light-theme .project:hover .project__number {
  color: #1d4ed8;
}

.project__title {
  font-family: "Fraunces", serif;
  font-size: clamp(1.6rem, 2.2vw, 2.3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.7rem;
  letter-spacing: -0.015em;
  line-height: 1.08;
}

.project__desc {
  color: var(--text-secondary);
  font-size: clamp(0.88rem, 1.1vw, 1rem);
  line-height: 1.75;
  margin-bottom: 1rem;
}

/* Project tech tags */
.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.2rem;
}

.project__tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #9eb2df;
  padding: 0.34rem 0.68rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(20, 34, 68, 0.68);
  transition:
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease;
}

.light-theme .project__tag {
  background: rgba(232, 239, 255, 0.9);
  color: #25407d;
}

.project:hover .project__tag {
  color: #d7e3ff;
  border-color: rgba(112, 151, 255, 0.52);
  background: rgba(32, 62, 126, 0.86);
}

.project__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.95rem;
}

.project__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #acc1f0;
  padding: 0.44rem 0.7rem;
  border: 1px solid rgba(79, 109, 177, 0.56);
  border-radius: 999px;
  transition:
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    transform var(--duration-fast) ease;
}

.project__link svg {
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.project__link:hover {
  color: #ffffff;
  border-color: #4f82ff;
  background: #1d4ed8;
  transform: translateY(-1px);
}

.project__link:hover svg {
  transform: translate(2px, -2px);
}

/* View All CTA */
.work__cta {
  text-align: center;
  padding-top: clamp(2.1rem, 4vw, 3.5rem);
}

.view-all {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #bdd0fa;
  padding: 0.72rem 1.02rem;
  border: 1px solid rgba(84, 118, 190, 0.58);
  border-radius: 999px;
  background: rgba(13, 22, 46, 0.68);
  transition:
    color var(--duration-fast) ease,
    border-color var(--duration-base) ease,
    background var(--duration-base) ease,
    transform var(--duration-base) var(--ease-out-expo);
}

.view-all:hover {
  color: #ffffff;
  border-color: #5b88ff;
  background: #1e47ad;
  transform: translateY(-1px);
}

.view-all__arrow {
  display: flex;
  align-items: center;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.view-all:hover .view-all__arrow {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   13. CONTACT
   -------------------------------------------------------------------------- */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

.contact__lead {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
  letter-spacing: -0.01em;
}

.contact__details {
  margin-bottom: var(--space-xl);
}

.contact__item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
}

.contact__item:first-child {
  border-top: 1px solid var(--border);
}

.contact__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  margin-bottom: 0.3rem;
}

.contact__value {
  font-size: var(--text-sm);
  color: var(--text-primary);
}

.contact__value--link {
  transition: color var(--duration-fast) ease;
}

.contact__value--link:hover {
  color: var(--accent);
}

.contact__socials {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.contact__socials a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.contact__socials a i {
  font-size: 1rem;
  display: inline-block;
  opacity: 0;
  transform: translateY(6px) scale(0.5);
  transition: opacity 0.35s ease,
              transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact__socials a span {
  display: inline-block;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact__socials a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.contact__socials a:hover i {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.contact__socials a:hover span {
  transform: translateX(2px);
}

/* Contact Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 1.4rem 0 0.6rem;
  outline: none;
  transition: border-color var(--duration-base) ease;
  resize: none;
}

.form-group textarea {
  min-height: 100px;
}

.form-group label {
  position: absolute;
  top: 1.4rem;
  left: 0;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  pointer-events: none;
  transition: all var(--duration-base) var(--ease-out-expo);
  transform-origin: left;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: 0;
  font-size: var(--text-xs);
  color: var(--accent);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.form-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
  width: 100%;
}

.form-response {
  text-align: center;
  font-size: var(--text-sm);
  min-height: 1.5rem;
}

.form-response.success {
  color: #4ade80;
}

.form-response.error {
  color: #f87171;
}

/* --------------------------------------------------------------------------
   14. FOOTER
   -------------------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.footer__top {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) ease;
}

.footer__top:hover {
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   14b. JOURNEY (Education + Certifications + Interests)
   -------------------------------------------------------------------------- */

.journey {
  background: var(--bg-surface);
}

.journey__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
  align-items: start;
}

.journey__block {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: var(--space-xl) var(--space-lg);
  transition:
    border-color var(--duration-normal) ease,
    box-shadow var(--duration-normal) ease;
}

.journey__block:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.journey__block--wide {
  grid-column: 1 / -1;
}

.journey__block-title {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}

.journey__block-title svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* ---- Timeline ---- */

.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--border);
  border-radius: 1px;
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-lg);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--bg-elevated);
  z-index: 1;
}

.timeline__date {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.3em;
}

.timeline__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.2em;
}

.timeline__place {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: 0.5em;
}

.timeline__detail {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  line-height: 1.55;
}

/* ---- Certifications ---- */

.certs {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cert {
  display: flex;
  align-items: flex-start;
  width: 100%;
  gap: 0.75em;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
  transition: border-color var(--duration-fast) ease;
}

.cert:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.cert:hover {
  border-color: var(--accent);
}

.cert__icon {
  color: var(--accent);
  font-size: 10px;
  line-height: 2;
  flex-shrink: 0;
}

.cert__info {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.cert__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  transition: color var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.cert__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cert__data {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
  display: grid;
}

.cert__data > span {
  grid-area: 1 / 1;
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1),
              opacity 0.35s ease;
}

.cert__issuer {
  opacity: 1;
  transform: translateX(0);
}

.cert__id {
  opacity: 0;
  transform: translateX(-10px);
}

.cert__info:hover .cert__issuer {
  opacity: 0;
  transform: translateX(10px);
}

.cert__info:hover .cert__id {
  opacity: 1;
  transform: translateX(0);
}

.cert__date {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.cert__info:hover .cert__title {
  color: var(--accent-hover);
  transform: translateX(4px);
  text-decoration: underline;
}

/* ---- Interests ---- */

.interests {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.interest {
  display: flex;
  align-items: flex-start;
  gap: 0.75em;
  padding: var(--space-md);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition:
    border-color var(--duration-normal) ease,
    transform var(--duration-normal) ease;
}

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

.interest__emoji {
  font-size: 1.5em;
  line-height: 1.3;
  flex-shrink: 0;
}

.interest__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25em;
}

.interest__desc {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   14c. ORIGIN 3D SCROLL SEQUENCE
   -------------------------------------------------------------------------- */

.origin {
  position: relative;
  --origin-p: 0;
  --origin-shift-x: 0px;
  --origin-shift-y: 0px;
  --origin-chapter: 0;
  padding-top: clamp(4rem, 8vw, 9rem);
  padding-bottom: 0;
  overflow: clip;
}

.origin__intro {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.origin__title {
  font-size: clamp(2.7rem, 6vw, 5.4rem);
  letter-spacing: 0.03em;
}

.origin__lede {
  margin-top: 1rem;
  color: var(--text-secondary);
  max-width: 60ch;
  line-height: 1.78;
}

.origin__track {
  height: 300vh;
  margin-top: clamp(2rem, 4vw, 3.8rem);
}

.origin__sticky {
  position: sticky;
  top: calc(var(--nav-height) + 0.6rem);
  height: calc(100vh - var(--nav-height) - 1.2rem);
  overflow: hidden;
  perspective: 1800px;
  transform-style: preserve-3d;
  background:
    radial-gradient(circle at 16% 26%, rgba(37, 99, 235, 0.21), transparent 36%),
    radial-gradient(circle at 80% 12%, rgba(11, 27, 74, 0.46), transparent 52%),
    linear-gradient(180deg, #060b19 0%, #050915 54%, #03050d 100%);
}

.origin__noise,
.origin__grid,
.origin__beam,
.origin__film,
.origin__core-wrap,
.origin__cards,
.origin__timeline {
  position: absolute;
  inset: 0;
}

.origin__noise {
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.055) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
  opacity: 0.16;
  transform: translateZ(-220px) scale(1.3);
}

.origin__grid {
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(83, 119, 202, 0.18) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(0deg, rgba(83, 119, 202, 0.12) 0 1px, transparent 1px 56px);
  mask-image: radial-gradient(circle at center, black 28%, transparent 82%);
  opacity: calc(0.12 + var(--origin-p) * 0.55);
  transform: translate3d(calc(var(--origin-shift-x) * -0.14), calc(var(--origin-shift-y) * -0.16), -180px)
    rotateX(calc(55deg - var(--origin-p) * 18deg)) scale(1.28);
}

.origin__beam {
  pointer-events: none;
  inset: 12% 30%;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(102, 144, 255, 0.72), rgba(10, 33, 88, 0));
  filter: blur(22px);
  opacity: calc(0.2 + var(--origin-p) * 0.55);
  transform: translateZ(calc(-80px + var(--origin-p) * 120px)) scaleY(calc(0.6 + var(--origin-p) * 0.8));
}

.origin__film {
  width: clamp(66px, 8vw, 106px);
  inset: 0 auto 0 0;
  background:
    linear-gradient(180deg, rgba(24, 38, 80, 0.38), rgba(7, 12, 28, 0.9)),
    repeating-linear-gradient(
      180deg,
      rgba(106, 137, 214, 0.28) 0 26px,
      transparent 26px 54px,
      rgba(106, 137, 214, 0.18) 54px 58px,
      transparent 58px 84px
    );
  border-right: 1px solid rgba(110, 140, 216, 0.26);
  opacity: calc(0.24 + var(--origin-p) * 0.5);
  transform: translate3d(calc(var(--origin-p) * -26px), 0, -120px);
}

.origin__film::after {
  content: "";
  position: absolute;
  inset: 1.2rem 0.45rem;
  border: 1px solid rgba(170, 190, 245, 0.2);
}

.origin__film--right {
  left: auto;
  right: 0;
  border-right: 0;
  border-left: 1px solid rgba(110, 140, 216, 0.26);
  transform: translate3d(calc(var(--origin-p) * 26px), 0, -120px);
}

.origin__core-wrap {
  display: grid;
  place-items: center;
  transform-style: preserve-3d;
}

.origin__core {
  width: clamp(112px, 14.5vw, 188px);
  aspect-ratio: 1;
  border-radius: 18px;
  background:
    linear-gradient(140deg, rgba(59, 130, 246, 0.96), rgba(30, 58, 138, 0.8)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.16) 0 6px, transparent 6px 12px);
  border: 1px solid rgba(175, 201, 255, 0.62);
  box-shadow:
    0 0 0 1px rgba(190, 212, 255, 0.26) inset,
    0 24px 40px rgba(4, 9, 20, 0.58),
    0 0 70px rgba(37, 99, 235, 0.38);
  transform: translateZ(calc(10px + var(--origin-p) * 132px)) rotateX(calc(62deg - var(--origin-p) * 50deg))
    rotateY(calc(-40deg + var(--origin-p) * 78deg)) rotateZ(calc(var(--origin-p) * 16deg));
}

.origin__core::before,
.origin__core::after {
  content: "";
  position: absolute;
  border-radius: inherit;
}

.origin__core::before {
  inset: 14%;
  border: 1px solid rgba(211, 226, 255, 0.5);
  opacity: calc(0.16 + var(--origin-p) * 0.8);
}

.origin__core::after {
  inset: -10%;
  border: 1px solid rgba(88, 135, 255, 0.28);
  transform: translateZ(-22px);
}

.origin__charge {
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  font-size: 0.69rem;
  text-transform: uppercase;
  color: #a7c3ff;
  text-shadow: 0 0 24px rgba(37, 99, 235, 0.58);
  transform: translateZ(160px);
}

.origin__timeline {
  pointer-events: none;
  top: auto;
  left: 50%;
  right: auto;
  bottom: clamp(1.15rem, 4vw, 2.2rem);
  width: min(640px, calc(100% - 7rem));
  height: auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  transform: translateX(-50%) translateZ(60px);
}

.origin__timeline-item {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 0.45rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #90a7d6;
  border: 1px solid rgba(94, 122, 188, 0.5);
  background: rgba(11, 19, 42, 0.62);
  border-radius: 999px;
  transition:
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    transform var(--duration-fast) ease;
}

.origin__timeline-item.is-active {
  color: #ffffff;
  border-color: rgba(121, 161, 255, 0.92);
  background: rgba(37, 99, 235, 0.62);
  transform: translateY(-1px);
}

.origin__cards {
  pointer-events: none;
}

.origin-card {
  position: absolute;
  width: min(286px, 66vw);
  padding: 0.9rem 0.92rem 0.84rem;
  border-radius: 10px;
  border: 1px solid rgba(113, 147, 224, 0.4);
  background:
    linear-gradient(160deg, rgba(14, 24, 52, 0.95), rgba(8, 14, 31, 0.9));
  box-shadow: 0 20px 30px rgba(2, 6, 16, 0.46);
  transition:
    border-color var(--duration-base) ease,
    box-shadow var(--duration-base) ease;
  will-change: transform, opacity;
}

html.is-windows .origin-card {
  background: linear-gradient(160deg, rgba(11, 20, 44, 0.98), rgba(8, 14, 31, 0.96));
}

html.is-windows .origin__beam {
  filter: blur(14px);
}

.origin-card h3 {
  font-family: "Fraunces", serif;
  letter-spacing: 0.015em;
  font-size: clamp(1rem, 1.7vw, 1.35rem);
  line-height: 1.1;
}

.origin-card p {
  color: #b4c4e8;
  font-size: 0.79rem;
  line-height: 1.6;
}

.origin-card__kicker {
  margin-bottom: 0.48rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #7da4ff;
}

.origin-card--one {
  top: 20%;
  left: 8%;
}

.origin-card--two {
  top: 26%;
  right: 8%;
}

.origin-card--three {
  bottom: 17%;
  left: 8%;
}

.origin-card--four {
  bottom: 17%;
  right: 8%;
}

/* --------------------------------------------------------------------------
   15. RESPONSIVE
   -------------------------------------------------------------------------- */

/* Large desktop – about grid side by side */
@media (min-width: 1024px) {
  .about__grid {
    grid-template-columns: 2fr 3fr;
    gap: var(--space-3xl);
    align-items: start;
  }

  .about__quote {
    position: sticky;
    top: calc(var(--nav-height) + 2rem);
  }

  .hero__stats {
    max-width: 520px;
    gap: 3rem;
  }
}

/* Tablet */
@media (max-width: 1023px) {
  .skills__grid {
    grid-template-columns: 1fr 1fr;
  }

  .project,
  .project--reverse {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .project {
    padding: 1rem;
  }

  .project--reverse .project__image,
  .project--reverse .project__info {
    order: unset;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

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

  .origin__track {
    height: 200vh;
  }

  .origin__timeline {
    width: min(560px, calc(100% - 3.2rem));
  }

  .origin-card {
    width: min(258px, 70vw);
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .nav__links {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  .hero__social,
  .hero__scroll {
    display: none;
  }

  .origin__track {
    height: auto;
  }

  .origin__sticky {
    position: relative;
    min-height: 96vh;
    padding-bottom: 8.5rem;
  }

  .origin__film {
    width: 56px;
  }

  .origin__timeline {
    width: min(520px, calc(100% - 2.2rem));
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    bottom: 1rem;
  }

  .origin-card {
    width: min(250px, 76vw);
  }

  .origin-card--one,
  .origin-card--three {
    left: 2%;
  }

  .origin-card--two,
  .origin-card--four {
    right: 2%;
  }

  .hero__eyebrow {
    flex-direction: column;
    gap: 0.2rem;
  }

  .hero__container {
    padding: 0 0.5rem;
  }

  .hero__stats {
    min-width: 0;
    width: min(100%, 520px);
    padding: var(--space-lg) var(--space-md);
  }

  .about__columns {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

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

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

  .project__number {
    font-size: 0.7rem;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .hero__actions {
    flex-direction: row;
    flex-wrap: wrap;
    width: auto;
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
    gap: 0.75rem;
  }

  .hero__actions .btn {
    width: auto;
    min-width: 140px;
    padding-left: 1.15rem;
    padding-right: 1.15rem;
    justify-content: center;
  }

  .hero__stats {
    min-width: 0;
    width: min(100%, 340px);
    gap: 0.8rem;
    padding: var(--space-md) var(--space-sm);
    justify-content: space-between;
  }

  .hero__stat {
    min-width: 92px;
    flex: 1 1 92px;
  }

  .hero__stat-divider {
    display: none;
  }

  .hero__stat-label {
    white-space: normal;
    text-align: center;
    line-height: 1.3;
  }

  .about__actions {
    flex-direction: column;
    width: 100%;
  }

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

  .project__links {
    flex-direction: column;
    gap: 0.6rem;
  }

  .journey__block {
    padding: var(--space-lg) var(--space-md);
  }

  .origin__sticky {
    min-height: 88vh;
  }

  .origin__timeline {
    width: min(360px, calc(100% - 1.4rem));
    gap: 0.44rem;
  }

  .origin-card {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    bottom: auto;
    margin: 0.62rem auto;
    width: min(300px, 88vw);
    pointer-events: auto;
  }

  .origin__cards {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-bottom: 3.8rem;
    padding-top: 6.2rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .origin__track {
    height: auto;
  }

  .origin__sticky {
    position: relative;
    min-height: auto;
    padding: 1.5rem 0 2.5rem;
  }

  .origin__timeline {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    transform: none;
    width: min(640px, calc(100% - 2rem));
    margin: 1rem auto 0;
  }

  .origin__cards {
    position: relative;
    inset: auto;
    display: grid;
    gap: 0.8rem;
    width: min(640px, calc(100% - 2rem));
    margin: 0.9rem auto 0;
  }

  .origin-card {
    position: relative;
    width: 100%;
    margin: 0;
    transform: none !important;
    opacity: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}