/* ============================================
   PORTFOLIO — Refined Edition
   Same bones, elevated polish.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Inter+Tight:wght@500;600;700&display=swap');

:root {
  --background: #ffffff;
  --foreground: #0a0a0a;
  --muted: #ececf0;
  --muted-foreground: #717182;
  --border: rgba(0, 0, 0, 0.08);
  --primary: #030213;
  --primary-foreground: #ffffff;

  /* Accent system — used sparingly */
  --accent: #5747d6;
  --accent-soft: rgba(87, 71, 214, 0.08);
  --accent-border: rgba(87, 71, 214, 0.25);
  --gradient: linear-gradient(110deg, #4d5dfb 0%, #8a5cf6 45%, #e0639e 90%);

  --radius: 0.625rem;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Inter Tight', 'Inter', -apple-system, sans-serif;
  --max-width: 1280px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); color: var(--foreground); background: var(--background); line-height: 1.5; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

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

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

section { scroll-margin-top: 80px; }

/* ============================================
   Scroll progress
   ============================================ */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 60;
  pointer-events: none;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: all 0.3s ease;
  padding: 24px 0;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

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

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  font-weight: 600;
}

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

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  position: relative;
  color: var(--muted-foreground);
  transition: color var(--transition);
  font-size: 0.9375rem;
  padding: 4px 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease-out);
}

.nav__link:hover { color: var(--foreground); }

.nav__link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__cta {
  display: inline-block;
  padding: 8px 24px;
  border-radius: 9999px;
  border: 1px solid var(--border);
  font-size: 0.9375rem;
  transition: all var(--transition);
}

.nav__cta:hover {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent);
}

/* Mobile menu button */
.nav__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 51;
}

.nav__menu-btn span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--foreground);
  transition: all var(--transition);
}

.nav__menu-btn.is-open span:nth-child(1) {
  transform: rotate(45deg) translate(2px, 5px);
}
.nav__menu-btn.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__menu-btn.is-open span:nth-child(3) {
  transform: rotate(-45deg) translate(2px, -5px);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--background);
  z-index: 49;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  transition: color var(--transition);
}

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

/* ============================================
   Hero
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

/* Ambient orbs */
.hero__bg {
  position: absolute;
  inset: -10%;
  pointer-events: none;
  will-change: transform;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}

/* Subtle grain to dither the soft gradients */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  opacity: 0.05;
  pointer-events: none;
  z-index: 0;
}

.hero__orb--1 {
  width: 520px;
  height: 520px;
  top: 8%;
  left: 12%;
  background: rgba(77, 93, 251, 0.22);
  animation: orbDrift1 18s ease-in-out infinite alternate;
}

.hero__orb--2 {
  width: 460px;
  height: 460px;
  bottom: 6%;
  right: 10%;
  background: rgba(224, 99, 158, 0.14);
  animation: orbDrift2 22s ease-in-out infinite alternate;
}

@keyframes orbDrift1 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(60px, 40px) scale(1.08); }
}

@keyframes orbDrift2 {
  from { transform: translate(0, 0) scale(1.05); }
  to   { transform: translate(-50px, -35px) scale(1); }
}

.hero__inner {
  position: relative;
  max-width: 900px;
  z-index: 1;
}

.hero__label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8.5vw, 5.75rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.04;
  margin-bottom: 28px;
}

/* Word rotator */
.hero__rotator {
  position: relative;
  display: inline-grid;
  text-align: center;
  overflow: hidden;
  vertical-align: bottom;
  /* padding keeps glyph edges (descenders, trailing letters with negative
     tracking) clear of the overflow clip */
  padding: 0.05em 0.12em 0.08em;
  margin: -0.05em -0.12em -0.08em;
}

.hero__word {
  grid-area: 1 / 1;
  background: var(--gradient);
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientFlow 7s ease-in-out infinite;
  transform: translateY(110%);
  opacity: 0;
  transition: transform 0.7s var(--ease-out), opacity 0.5s ease;
  will-change: transform, opacity;
}

.hero__word.is-active {
  transform: translateY(0);
  opacity: 1;
}

.hero__word.is-leaving {
  transform: translateY(-110%);
  opacity: 0;
}

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

.hero__desc {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--muted-foreground);
  max-width: 620px;
  margin: 0 auto 40px;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted-foreground);
}

.hero__scroll svg {
  width: 20px;
  height: 20px;
  animation: scrollBob 2.2s ease-in-out infinite;
}

@keyframes scrollBob {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50%      { transform: translateY(6px); opacity: 1; }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all var(--transition);
  overflow: hidden;
}

.btn--primary {
  background: var(--primary);
  color: var(--primary-foreground);
}

/* Subtle sheen sweep on hover */
.btn--primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s var(--ease-out);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(3, 2, 19, 0.18);
}

.btn--primary:hover::after {
  left: 130%;
}

.btn--outline {
  border: 1px solid var(--border);
  color: var(--foreground);
}

.btn--outline:hover {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn--ghost {
  padding: 10px 18px;
  color: var(--muted-foreground);
  font-size: 0.875rem;
}

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

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

.btn--ghost svg {
  transition: transform var(--transition);
}

/* ============================================
   Sections
   ============================================ */

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 120px 24px;
}

.section__header {
  margin-bottom: 64px;
}

.section__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section__desc {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--muted-foreground);
  max-width: 560px;
}

/* ============================================
   Featured Work — grid layout
   ============================================ */

.projects {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 64px 40px;
}

.project-card {
  display: block;
}

.project-card__body {
  min-width: 0;
}

/* Featured card spans full width, image + text side by side */
.project-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 2);
  background: linear-gradient(180deg, rgba(87, 71, 214, 0.025), transparent 60%);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.project-card--featured:hover {
  border-color: var(--accent-border);
  box-shadow: 0 20px 60px rgba(3, 2, 19, 0.07);
}

.project-card__image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--muted);
  margin-bottom: 24px;
}

.project-card--featured .project-card__image {
  margin-bottom: 0;
  aspect-ratio: 16 / 11;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.project-card:hover .project-card__image img {
  transform: scale(1.04);
}

.project-card__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(3, 2, 19, 0.25));
  opacity: 0;
  transition: opacity var(--transition);
}

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

.project-card__lock {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  color: var(--foreground);
  z-index: 2;
}

.project-card__lock svg {
  width: 14px;
  height: 14px;
}

.project-card__arrow {
  position: absolute;
  top: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--foreground);
  opacity: 0;
  transform: translate(-6px, 6px);
  transition: opacity var(--transition), transform 0.4s var(--ease-out), background var(--transition), color var(--transition);
  z-index: 2;
}

.project-card:hover .project-card__arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.project-card__arrow:hover {
  background: var(--accent);
  color: #fff;
}

.project-card__arrow svg {
  width: 18px;
  height: 18px;
}

.project-card__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.project-card__category {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.project-card__line {
  flex: 1;
  max-width: 48px;
  height: 1px;
  background: var(--border);
  transition: background var(--transition), max-width 0.4s var(--ease-out);
}

.project-card:hover .project-card__line {
  background: rgba(0, 0, 0, 0.18);
  max-width: 72px;
}

.project-card__year {
  font-size: 0.8125rem;
  color: var(--muted-foreground);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 12px;
}

.project-card--featured .project-card__title {
  font-size: clamp(1.5rem, 2.6vw, 2.125rem);
}

.project-card__desc {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--muted-foreground);
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card--featured .project-card__desc {
  -webkit-line-clamp: 4;
  font-size: 1rem;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.tag {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 9999px;
  background: var(--muted);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: background var(--transition), color var(--transition);
}

.project-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
}

.project-card__cta svg {
  width: 15px;
  height: 15px;
  transition: transform 0.35s var(--ease-out);
}

.project-card:hover .project-card__cta svg {
  transform: translateX(4px);
}

/* ============================================
   About
   ============================================ */

.about {
  background: linear-gradient(180deg, transparent, rgba(236, 236, 240, 0.4) 20%, rgba(236, 236, 240, 0.4) 80%, transparent);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.about__image {
  position: relative;
  border-radius: calc(var(--radius) * 2);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--muted);
}

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(87, 71, 214, 0.08), transparent 45%);
  pointer-events: none;
}

.about__content {
  max-width: 560px;
}

.about__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.about__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 28px;
}

.about__text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--muted-foreground);
  margin-bottom: 18px;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.stat__number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-size: 0.8125rem;
  color: var(--muted-foreground);
}

/* ============================================
   Skills
   ============================================ */

.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.skill-card {
  position: relative;
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  background: var(--background);
  transition: transform 0.4s var(--ease-out), border-color var(--transition), box-shadow var(--transition);
}

.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-border);
  box-shadow: 0 16px 40px rgba(3, 2, 19, 0.06);
}

.skill-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--muted);
  color: var(--foreground);
  margin-bottom: 20px;
  transition: background var(--transition), color var(--transition), transform 0.4s var(--ease-out);
}

.skill-card:hover .skill-card__icon {
  background: var(--accent-soft);
  color: var(--accent);
  transform: scale(1.08);
}

.skill-card__icon svg {
  width: 22px;
  height: 22px;
}

.skill-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}

.skill-card__desc {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--muted-foreground);
}

/* ============================================
   Contact
   ============================================ */

.contact {
  text-align: center;
}

.contact__inner {
  max-width: 720px;
  margin: 0 auto;
}

.contact__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.contact__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 24px;
}

.contact__title-accent {
  background: var(--gradient);
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientFlow 7s ease-in-out infinite;
}

.contact__desc {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--muted-foreground);
  max-width: 540px;
  margin: 0 auto 36px;
}

.contact__btn {
  padding: 14px 36px;
  font-size: 1rem;
}

.contact__socials {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 48px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted-foreground);
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-3px);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__link {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  transition: color var(--transition);
}

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

/* ============================================
   Case Study Page
   ============================================ */

.case-back {
  max-width: 920px;
  margin: 0 auto;
  padding: 110px 24px 0;
}

.case-hero {
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 24px 48px;
}

.case-hero__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.case-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 20px;
}

.case-hero__desc {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--muted-foreground);
  max-width: 720px;
  margin-bottom: 24px;
}

.case-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-hero__image {
  max-width: 920px; /* match case study content width */
  margin: 0 auto;
  padding: 0 24px;
}

.case-hero__image-inner {
  aspect-ratio: 16 / 10; /* match the homepage card ratio */
  border-radius: calc(var(--radius) * 2);
  overflow: hidden;
  background: var(--muted);
  box-shadow: 0 24px 64px rgba(3, 2, 19, 0.1);
}

.case-hero__image-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-details {
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 24px 0;
}

.case-details__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 28px 32px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  background: linear-gradient(180deg, rgba(87, 71, 214, 0.02), transparent);
}

.case-detail__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin-bottom: 6px;
}

.case-detail__value {
  font-weight: 500;
}

.case-content {
  max-width: 920px;
  margin: 0 auto;
  padding: 64px 24px;
}

.case-section {
  margin-bottom: 56px;
}

.case-section__title {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

.case-section__body {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--muted-foreground);
}

.case-images {
  display: grid;
  gap: 40px;
  margin: 56px 0;
}

.case-images figure {
  margin: 0;
}

.case-images img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.case-images figcaption {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  text-align: center;
  margin-top: 12px;
}

.case-results {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.result-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  transition: transform 0.4s var(--ease-out), border-color var(--transition), box-shadow var(--transition);
}

.result-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-border);
  box-shadow: 0 12px 32px rgba(3, 2, 19, 0.05);
}

.result-card__icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--muted);
  color: var(--foreground);
  transition: background var(--transition), color var(--transition);
}

.result-card:hover .result-card__icon {
  background: var(--accent-soft);
  color: var(--accent);
}

.result-card__icon svg {
  width: 18px;
  height: 18px;
}

.result-card__text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--foreground);
  align-self: center;
}

.case-nav {
  display: flex;
  justify-content: center;
  padding: 24px 24px 96px;
}

/* ============================================
   Rich Case Study Elements
   ============================================ */

.case-bullets {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}

.case-bullets li {
  position: relative;
  padding-left: 26px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted-foreground);
}

.case-bullets li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.7;
  transform: rotate(45deg);
}

.case-quotes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 28px;
}

.quote-card {
  padding: 26px 28px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(87, 71, 214, 0.03), transparent 55%);
}

.quote-card__text {
  font-size: 1.0625rem;
  line-height: 1.6;
  font-weight: 500;
  margin-bottom: 16px;
}

.quote-card__text::before { content: '\201C'; color: var(--accent); }
.quote-card__text::after { content: '\201D'; color: var(--accent); }

.quote-card__meta {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--muted-foreground);
}

.quote-card__org {
  font-weight: 600;
  color: var(--foreground);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.principle-card {
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform 0.4s var(--ease-out);
}

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

.principle-card__title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 6px;
}

.principle-card__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted-foreground);
}

.case-comparison {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.case-comparison__col {
  padding: 28px;
  border-radius: calc(var(--radius) * 1.5);
  border: 1px solid var(--border);
}

.case-comparison__col--before {
  background: rgba(220, 50, 50, 0.025);
  border-color: rgba(220, 50, 50, 0.15);
}

.case-comparison__col--after {
  background: rgba(87, 71, 214, 0.03);
  border-color: var(--accent-border);
}

.case-comparison__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 9999px;
  margin-bottom: 18px;
}

.case-comparison__col--before .case-comparison__label {
  background: rgba(220, 50, 50, 0.1);
  color: #b32626;
}

.case-comparison__col--after .case-comparison__label {
  background: var(--accent-soft);
  color: var(--accent);
}

.case-comparison__list {
  display: grid;
  gap: 12px;
}

.case-comparison__list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--muted-foreground);
}

.case-comparison__col--before .case-comparison__list li::before {
  content: '\00D7';
  position: absolute;
  left: 0;
  top: -1px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #b32626;
}

.case-comparison__col--after .case-comparison__list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  color: var(--accent);
}

.case-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
  margin: 64px 0;
}

.case-highlight {
  padding: 40px;
  border-radius: calc(var(--radius) * 2);
  background: linear-gradient(135deg, #0a0a14, #161430);
  margin-bottom: 56px;
}

.case-highlight .case-section__title {
  color: #fff;
}

.case-highlight .case-section__body {
  color: rgba(255, 255, 255, 0.7);
}

.case-highlight .case-bullets li {
  color: rgba(255, 255, 255, 0.75);
}

.case-highlight .case-bullets li::before {
  background: #8a5cf6;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.impact-card {
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(87, 71, 214, 0.02), transparent);
}

.impact-card__title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 6px;
}

.impact-card__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted-foreground);
}

.future-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.future-step {
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid var(--accent-border);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  transition: background var(--transition), color var(--transition);
}

.future-step:hover {
  background: var(--accent);
  color: #fff;
}

/* Case media placeholders */
.case-media {
  margin: 48px 0;
}

.case-media--with-caption {
  margin-bottom: 12px;
}

.case-media__inner {
  border-radius: calc(var(--radius) * 1.5);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--muted);
}

.case-media__inner img,
.case-media__inner video {
  width: 100%;
  display: block;
}

.case-media__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 320px;
  padding: 40px;
  text-align: center;
  color: var(--muted-foreground);
  background:
    linear-gradient(135deg, rgba(87, 71, 214, 0.03), transparent 60%),
    repeating-linear-gradient(-45deg, transparent, transparent 14px, rgba(0,0,0,0.015) 14px, rgba(0,0,0,0.015) 28px);
}

.case-media__placeholder svg {
  width: 36px;
  height: 36px;
  opacity: 0.4;
}

.case-media__placeholder-label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--foreground);
}

.case-media__placeholder-text {
  font-size: 0.8125rem;
  line-height: 1.6;
}

.case-media__caption {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  text-align: center;
  margin: 12px 0 48px;
}

.case-media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 48px 0;
}

.case-media-grid .case-media {
  margin: 0;
}

/* ============================================
   Password Gate
   ============================================ */

.password-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
}

.password-gate__inner {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.password-gate__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 24px;
}

.password-gate__icon svg {
  width: 26px;
  height: 26px;
}

.password-gate__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.password-gate__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--muted-foreground);
  margin-bottom: 28px;
}

.password-gate__form {
  display: grid;
  gap: 14px;
}

.password-gate__input-wrap {
  position: relative;
}

.password-gate__input {
  width: 100%;
  padding: 13px 48px 13px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.9375rem;
  background: var(--background);
  color: var(--foreground);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.password-gate__input::placeholder {
  color: var(--muted-foreground);
}

.password-gate__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.password-gate__input.has-error {
  border-color: #b32626;
  animation: shake 0.35s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.password-gate__toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--muted-foreground);
  transition: color var(--transition);
}

.password-gate__toggle:hover {
  color: var(--foreground);
}

.password-gate__toggle svg {
  width: 18px;
  height: 18px;
}

.password-gate__submit {
  padding: 13px 24px;
  border-radius: var(--radius);
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: transform var(--transition), box-shadow var(--transition);
}

.password-gate__submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(3, 2, 19, 0.18);
}

.password-gate__error {
  font-size: 0.875rem;
  color: #b32626;
}


/* Missing cover image fallback */
.image-missing {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  background:
    linear-gradient(135deg, rgba(87, 71, 214, 0.04), transparent 60%),
    repeating-linear-gradient(-45deg, transparent, transparent 14px, rgba(0,0,0,0.02) 14px, rgba(0,0,0,0.02) 28px);
}

.image-missing::after {
  content: 'Add cover image';
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
}

.case-hero__image-inner.image-missing {
  min-height: 380px;
}

/* ============================================
   Reveal animations
   ============================================ */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(4px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out), filter 0.7s var(--ease-out);
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-32px);
  filter: blur(4px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out), filter 0.8s var(--ease-out);
}

.fade-in-left.is-visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(32px);
  filter: blur(4px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out), filter 0.8s var(--ease-out);
}

.fade-in-right.is-visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.fade-in-delay-1 { transition-delay: 0.15s; }
.fade-in-delay-2 { transition-delay: 0.3s; }
.fade-in-delay-3 { transition-delay: 0.45s; }
.fade-in-delay-4 { transition-delay: 0.6s; }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
  .projects {
    gap: 48px 28px;
  }

  .project-card--featured {
    gap: 36px;
    padding: 28px;
  }

  .about__grid {
    gap: 48px;
  }

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

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

@media (max-width: 768px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__menu-btn {
    display: flex;
  }

  .hero {
    padding: 110px 20px 70px;
  }

  .hero__orb--1 { width: 320px; height: 320px; }
  .hero__orb--2 { width: 280px; height: 280px; }

  .section {
    padding: 80px 20px;
  }

  .section__header {
    margin-bottom: 44px;
  }

  .projects {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .project-card--featured {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 20px;
  }

  .project-card--featured .project-card__image {
    margin-bottom: 0;
  }

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

  .about__image {
    max-width: 420px;
    margin: 0 auto;
  }

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

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

  .case-results,
  .case-quotes,
  .case-comparison,
  .case-media-grid {
    grid-template-columns: 1fr;
  }

  .principle-grid,
  .impact-grid {
    grid-template-columns: 1fr;
  }

  .case-details__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .case-highlight {
    padding: 28px 22px;
  }

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

/* ============================================
   Reduced motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-in,
  .fade-in-left,
  .fade-in-right {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .hero__word {
    animation: none;
    transform: none;
    opacity: 0;
  }

  .hero__word.is-active {
    opacity: 1;
  }

  .hero__orb {
    animation: none;
  }
}