/* ============================================================
   STYLE.CSS — Component & Section Styles
   Sathya Elumalai Personal Site
   ============================================================ */

/* ---------- Scroll Fade-in Animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ============================================================
   HEADER / NAV
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-slow),
              background var(--transition-slow);
  padding: 0 var(--space-6);
}

[data-theme="dark"] .header {
  background: rgba(20, 20, 20, 0.85);
}

.header--scrolled {
  border-bottom-color: var(--color-divider);
}

.header__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}

.header__logo svg {
  width: 32px;
  height: 32px;
}

.header__logo-text {
  font-family: var(--font-system);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header__nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.header__nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition-interactive);
}

.header__nav-links a:hover {
  color: var(--color-text);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--transition-interactive),
              opacity var(--transition-interactive);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 3.5rem;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) var(--space-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-nav__links a {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
}

/* ============================================================
   SECTIONS — Global
   ============================================================ */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
}

.section__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-12);
  font-style: italic;
}

.section__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: calc(3.5rem + var(--space-12)) var(--space-6) var(--space-12);
  overflow: hidden;
}

.hero__content {
  max-width: var(--content-wide);
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.hero__name {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  line-height: 1.05;
  color: var(--color-text);
  font-style: italic;
}

.hero__title {
  font-family: var(--font-system);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__quote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  font-style: italic;
  max-width: 50ch;
  line-height: 1.5;
  margin-top: var(--space-4);
}

.hero__image {
  display: flex;
  justify-content: flex-end;
  position: relative;
}

.hero__image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85%;
  height: 85%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 70%);
  filter: blur(40px);
  animation: hero-glow 4s ease-in-out infinite alternate;
  z-index: 0;
}

.hero__image img {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius-lg);
  position: relative;
  z-index: 1;
  animation: hero-image-enter 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

/* Hero entrance animations */
.hero-animate__item {
  animation: hero-text-enter 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-animate__item:nth-child(1) {
  animation-delay: 0.1s;
}

.hero-animate__item:nth-child(2) {
  animation-delay: 0.3s;
}

.hero-animate__item:nth-child(3) {
  animation-delay: 0.5s;
}

@keyframes hero-text-enter {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-image-enter {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(16px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes hero-glow {
  0% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1);
  }
  100% {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(1.08);
  }
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-faint);
  animation: gentle-bounce 3s ease-in-out infinite;
}

.hero__scroll-indicator span {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

@keyframes gentle-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   AS FEATURED IN — Media Marquee
   ============================================================ */
.featured-in {
  padding: var(--space-10) 0 var(--space-8);
  overflow: hidden;
}

.featured-in__label-line {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  max-width: var(--content-wide);
  margin: 0 auto var(--space-6);
  padding: 0 var(--space-6);
}

.featured-in__line {
  flex: 1;
  height: 1px;
  background: var(--color-divider);
}

.featured-in__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  white-space: nowrap;
  flex-shrink: 0;
}

.featured-in__marquee {
  position: relative;
  width: 100%;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 8%,
    black 92%,
    transparent 100%
  );
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 8%,
    black 92%,
    transparent 100%
  );
}

.featured-in__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 40s linear infinite;
}

.featured-in__track:hover {
  animation-play-state: paused;
}

.featured-in__logos {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.featured-in__logo {
  flex-shrink: 0;
  font-family: var(--font-system);
  font-size: clamp(0.7rem, 1.2vw, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-text-faint);
  opacity: 0.5;
  padding: 0 clamp(1.25rem, 2.5vw, 2rem);
  transition: opacity 0.4s ease;
  cursor: default;
  white-space: nowrap;
}

.featured-in__logo:hover {
  opacity: 0.9;
}

.featured-in__dot {
  flex-shrink: 0;
  width: 3px;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--color-text-faint);
  opacity: 0.3;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (max-width: 768px) {
  .featured-in {
    padding: var(--space-6) 0;
  }

  .featured-in__label-line {
    margin-bottom: var(--space-4);
  }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-16);
  align-items: start;
}

.about__bio {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about__bio p {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-text);
  max-width: 65ch;
}

.about__bio blockquote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-style: italic;
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-accent);
  margin: var(--space-4) 0;
  line-height: 1.5;
}

.about__image {
  position: sticky;
  top: 6rem;
}

.about__image img {
  width: 100%;
  border-radius: var(--radius-lg);
  aspect-ratio: 4/5;
  object-fit: cover;
}

/* ============================================================
   WORK (Companies & Projects)
   ============================================================ */
.work__primary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.work-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive);
}

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

.work-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.work-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  font-style: italic;
  margin-bottom: var(--space-4);
}

.work-card__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.work-card__text p {
  margin-bottom: var(--space-3);
}

.work-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}

.work-card__stat {
  text-align: left;
}

.work-card__stat-value {
  font-family: var(--font-system);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}

.work-card__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.work-card__image {
  margin-top: var(--space-6);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.work-card__image img {
  width: 100%;
  object-fit: contain;
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
}

.work__vision {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.work__vision--enhanced {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-accent-light) 100%);
  border: 1px solid var(--color-accent);
  padding: var(--space-12);
}

.work__vision-content {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: var(--space-12);
  align-items: center;
}

.work__vision-eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.work__vision-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  margin-bottom: var(--space-4);
}

.work__vision-text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 65ch;
}

.work__vision-text p {
  margin-bottom: var(--space-3);
}

.work__vision-stats {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}

.work__vision-stat {
  display: flex;
  flex-direction: column;
}

.work__vision-stat-value {
  font-family: var(--font-system);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
}

.work__vision-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* AI Visual Animation */
.ai-visual {
  position: relative;
  width: 260px;
  height: 260px;
  margin: 0 auto;
}

.ai-visual__core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  z-index: 2;
}

.ai-visual__ring {
  position: absolute;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-accent);
  opacity: 0.15;
}

.ai-visual__ring--1 {
  top: 50%;
  left: 50%;
  width: 140px;
  height: 140px;
  transform: translate(-50%, -50%);
  animation: pulse-ring 3s ease-in-out infinite;
}

.ai-visual__ring--2 {
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  transform: translate(-50%, -50%);
  animation: pulse-ring 3s ease-in-out 0.5s infinite;
}

.ai-visual__ring--3 {
  top: 50%;
  left: 50%;
  width: 260px;
  height: 260px;
  transform: translate(-50%, -50%);
  animation: pulse-ring 3s ease-in-out 1s infinite;
}

.ai-visual__dots {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  animation: rotate-dots 20s linear infinite;
}

.ai-visual__dots span {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  opacity: 0.4;
}

.ai-visual__dots span:nth-child(1) { top: 5%; left: 50%; }
.ai-visual__dots span:nth-child(2) { top: 18%; left: 82%; }
.ai-visual__dots span:nth-child(3) { top: 50%; left: 95%; }
.ai-visual__dots span:nth-child(4) { top: 82%; left: 82%; }
.ai-visual__dots span:nth-child(5) { top: 95%; left: 50%; }
.ai-visual__dots span:nth-child(6) { top: 82%; left: 18%; }
.ai-visual__dots span:nth-child(7) { top: 50%; left: 5%; }
.ai-visual__dots span:nth-child(8) { top: 18%; left: 18%; }

@keyframes pulse-ring {
  0%, 100% { opacity: 0.1; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.25; transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes rotate-dots {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Tags for features */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.tag {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-accent-light);
  color: var(--color-accent);
}

/* ============================================================
   RESEARCH
   ============================================================ */
.research__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.research-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.research-card__icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-accent);
}

.research-card__title {
  font-family: var(--font-system);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.research-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   SPEAKING / MEDIA — Video Grid
   ============================================================ */

/* Featured video */
.video-featured {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-8);
  transition: border-color var(--transition-interactive);
}

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

.video-featured__embed {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
}

.video-featured__embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-featured__info {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.video-featured__source {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.video-featured__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  font-weight: 400;
  line-height: 1.35;
  margin-bottom: var(--space-4);
}

.video-featured__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Video grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition-interactive),
              transform var(--transition-interactive);
}

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

.video-card__embed {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
}

.video-card__embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-card__source {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  padding: var(--space-4) var(--space-4) 0;
}

.video-card__title {
  font-family: var(--font-system);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.35;
  padding: var(--space-2) var(--space-4) var(--space-4);
}

/* ============================================================
   PODCASTS
   ============================================================ */

/* Podcast Grid */
.podcast-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.podcast-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition-interactive),
              transform var(--transition-interactive);
}

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

.podcast-card__body {
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.podcast-card__source {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

.podcast-card__title {
  font-family: var(--font-system);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.35;
  margin-top: var(--space-1);
}

/* Link-style podcast cards (no video embed) */
.podcast-card--link {
  text-decoration: none;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
}

.podcast-card--link:hover {
  color: var(--color-text);
}

.podcast-card__image-wrap {
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--color-surface-2);
}

.podcast-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.podcast-card--link:hover .podcast-card__image-wrap img {
  transform: scale(1.03);
}

.podcast-card__listen {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  margin-top: var(--space-2);
}


/* ============================================================
   IDEAS
   ============================================================ */
.ideas__featured {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-8);
}

.ideas__featured-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.ideas__featured-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  margin-bottom: var(--space-4);
}

.ideas__featured-excerpt {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 65ch;
  margin-bottom: var(--space-6);
}

.ideas__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.idea-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.idea-card__title {
  font-family: var(--font-system);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-3);
  line-height: 1.35;
}

.idea-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.idea-card__tag {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-faint);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-full);
  display: inline-block;
}

/* ============================================================
   JOURNEY — Premium Scroll-Driven Experience
   ============================================================ */
.jrn {
  overflow: visible;
}

.jrn__intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 50ch;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.jrn__container {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-12) var(--space-6);
}

/* --- Progress Spine --- */
.jrn__spine {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  background: var(--color-divider);
  z-index: 0;
}

.jrn__spine-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-hover));
  border-radius: 1px;
  transition: height 60ms linear;
  will-change: height;
}

/* --- Milestone Article --- */
.jrn-milestone {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  gap: 0;
  align-items: start;
  margin-bottom: var(--space-12);
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.jrn-milestone.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Alternating: odd milestones = card on right */
.jrn-milestone:nth-child(odd) .jrn-milestone__card {
  grid-column: 3;
  grid-row: 1;
  transform: translateX(20px);
}
.jrn-milestone:nth-child(odd).is-visible .jrn-milestone__card {
  transform: translateX(0);
}
.jrn-milestone:nth-child(odd) .jrn-milestone__node {
  grid-column: 2;
  grid-row: 1;
}

/* Even milestones = card on left */
.jrn-milestone:nth-child(even) .jrn-milestone__card {
  grid-column: 1;
  grid-row: 1;
  text-align: right;
  transform: translateX(-20px);
}
.jrn-milestone:nth-child(even).is-visible .jrn-milestone__card {
  transform: translateX(0);
}
.jrn-milestone:nth-child(even) .jrn-milestone__node {
  grid-column: 2;
  grid-row: 1;
}

/* --- Node (dot on the spine) --- */
.jrn-milestone__node {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: var(--space-5);
  z-index: 2;
}

.jrn-milestone__node span {
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 2px solid var(--color-divider);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.jrn-milestone.is-visible .jrn-milestone__node span {
  border-color: var(--color-accent);
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-light),
              0 0 16px rgba(42, 111, 111, 0.3);
}

.jrn-milestone--key .jrn-milestone__node span {
  width: 18px;
  height: 18px;
}

.jrn-milestone--key.is-visible .jrn-milestone__node span {
  box-shadow: 0 0 0 6px var(--color-accent-light),
              0 0 24px rgba(42, 111, 111, 0.4);
  animation: node-pulse 2.5s ease-in-out infinite;
}

@keyframes node-pulse {
  0%, 100% { box-shadow: 0 0 0 6px var(--color-accent-light), 0 0 24px rgba(42, 111, 111, 0.4); }
  50% { box-shadow: 0 0 0 10px var(--color-accent-light), 0 0 32px rgba(42, 111, 111, 0.25); }
}

/* --- Card (glassmorphism) --- */
.jrn-milestone__card {
  background: rgba(245, 245, 242, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
  will-change: transform;
}

[data-theme="dark"] .jrn-milestone__card {
  background: rgba(28, 28, 28, 0.6);
}

.jrn-milestone__card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(42, 111, 111, 0.1);
  transform: translateY(-4px) !important;
}

.jrn-milestone--key .jrn-milestone__card {
  border-color: var(--color-accent);
  background: rgba(245, 245, 242, 0.8);
}

[data-theme="dark"] .jrn-milestone--key .jrn-milestone__card {
  background: rgba(28, 28, 28, 0.8);
}

.jrn-milestone__year {
  display: inline-block;
  font-family: var(--font-system);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}

.jrn-milestone__title {
  font-family: var(--font-system);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: var(--space-2);
}

.jrn-milestone--key .jrn-milestone__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  font-style: italic;
}

.jrn-milestone__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 40ch;
}

.jrn-milestone:nth-child(even) .jrn-milestone__desc {
  margin-left: auto;
}

/* --- Mobile: single column --- */
@media (max-width: 768px) {
  .jrn__container {
    padding: var(--space-8) var(--space-6);
  }

  .jrn__spine {
    left: 20px;
    transform: none;
  }

  .jrn-milestone {
    display: block;
    padding-left: 48px;
    margin-bottom: var(--space-8);
  }

  .jrn-milestone__node {
    position: absolute;
    left: 0;
    top: var(--space-5);
    width: 40px;
    display: flex;
    justify-content: center;
  }

  .jrn-milestone:nth-child(odd) .jrn-milestone__card,
  .jrn-milestone:nth-child(even) .jrn-milestone__card {
    text-align: left;
    transform: translateX(20px);
  }

  .jrn-milestone:nth-child(odd).is-visible .jrn-milestone__card,
  .jrn-milestone:nth-child(even).is-visible .jrn-milestone__card {
    transform: translateX(0);
  }

  .jrn-milestone:nth-child(even) .jrn-milestone__desc {
    margin-left: 0;
  }
}

/* ============================================================
   RECOGNITION — Animated Mosaic
   ============================================================ */
.reco__intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 55ch;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

/* Mosaic grid — 6 columns on desktop for a dense, magazine-style wall */
.reco__mosaic {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-3);
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

.reco-tile {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 1/1;
  cursor: pointer;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              z-index 0s;
  will-change: transform;
}

.reco-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.6s ease;
}

.reco-tile--center img { object-position: center; }

.reco-tile__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-3);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.reco-tile__overlay span {
  font-family: var(--font-system);
  font-size: var(--text-xs);
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.02em;
}

.reco-tile:hover .reco-tile__overlay {
  opacity: 1;
}

.reco-tile:hover {
  transform: scale(1.04) translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.15);
  z-index: 5;
}

.reco-tile:hover img {
  transform: scale(1.06);
}

/* Large tiles span 2 columns */
.reco-tile--lg {
  grid-column: span 2;
  aspect-ratio: 2/1;
}

/* Staggered entry for mosaic tiles (applied via IntersectionObserver fade-in) */
.reco-tile.fade-in.is-visible {
  animation: reco-tile-enter 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.reco-tile:nth-child(1).fade-in.is-visible  { animation-delay: 0s; }
.reco-tile:nth-child(2).fade-in.is-visible  { animation-delay: 0.04s; }
.reco-tile:nth-child(3).fade-in.is-visible  { animation-delay: 0.08s; }
.reco-tile:nth-child(4).fade-in.is-visible  { animation-delay: 0.12s; }
.reco-tile:nth-child(5).fade-in.is-visible  { animation-delay: 0.16s; }
.reco-tile:nth-child(6).fade-in.is-visible  { animation-delay: 0.20s; }
.reco-tile:nth-child(7).fade-in.is-visible  { animation-delay: 0.24s; }
.reco-tile:nth-child(8).fade-in.is-visible  { animation-delay: 0.28s; }
.reco-tile:nth-child(9).fade-in.is-visible  { animation-delay: 0.32s; }
.reco-tile:nth-child(10).fade-in.is-visible { animation-delay: 0.36s; }
.reco-tile:nth-child(11).fade-in.is-visible { animation-delay: 0.40s; }
.reco-tile:nth-child(12).fade-in.is-visible { animation-delay: 0.44s; }
.reco-tile:nth-child(13).fade-in.is-visible { animation-delay: 0.48s; }
.reco-tile:nth-child(14).fade-in.is-visible { animation-delay: 0.52s; }
.reco-tile:nth-child(15).fade-in.is-visible { animation-delay: 0.56s; }
.reco-tile:nth-child(16).fade-in.is-visible { animation-delay: 0.60s; }
.reco-tile:nth-child(17).fade-in.is-visible { animation-delay: 0.64s; }
.reco-tile:nth-child(18).fade-in.is-visible { animation-delay: 0.68s; }
.reco-tile:nth-child(19).fade-in.is-visible { animation-delay: 0.72s; }

@keyframes reco-tile-enter {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(16px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Spotlight animation (applied via JS) */
.reco-tile.is-spotlit {
  transform: scale(1.06) translateY(-6px);
  box-shadow: 0 20px 56px rgba(42, 111, 111, 0.2),
              0 0 0 2px var(--color-accent);
  z-index: 10;
}

.reco-tile.is-spotlit .reco-tile__overlay {
  opacity: 1;
}

.reco-tile.is-spotlit img {
  transform: scale(1.05);
}

/* Non-spotlit dimming (only when spotlight is active) */
.reco__mosaic.has-spotlight .reco-tile:not(.is-spotlit) {
  filter: brightness(0.85);
}

.reco__mosaic.has-spotlight .reco-tile:not(.is-spotlit) img {
  filter: saturate(0.7);
}

/* Award badges row (above mosaic) */
.reco__badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-4);
}

.reco-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
  min-width: 140px;
  transition: border-color var(--transition-interactive),
              transform var(--transition-interactive);
}

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

.reco-badge__year {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

.reco-badge__title {
  font-family: var(--font-system);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.35;
  margin-top: var(--space-1);
}

.reco-badge__org {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Lightbox modal */
.reco-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  padding: var(--space-6);
}

.reco-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.reco-lightbox__inner {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  transform: scale(0.92) translateY(12px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.reco-lightbox.is-open .reco-lightbox__inner {
  transform: scale(1) translateY(0);
}

.reco-lightbox__img {
  display: block;
  max-width: 90vw;
  max-height: 80vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
  object-fit: contain;
}

.reco-lightbox__caption {
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-system);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-top: var(--space-4);
  letter-spacing: 0.02em;
}

.reco-lightbox__close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.reco-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Responsive */
@media (max-width: 1200px) {
  .reco__mosaic {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (max-width: 1024px) {
  .reco__mosaic {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .reco__mosaic {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }

  .reco-tile--lg {
    grid-column: span 2;
  }

  .reco__badges {
    gap: var(--space-2);
  }

  .reco-badge {
    min-width: 120px;
    padding: var(--space-3) var(--space-4);
  }
}

@media (max-width: 480px) {
  .reco__mosaic {
    grid-template-columns: repeat(2, 1fr);
  }

  .reco-tile--lg {
    grid-column: span 2;
  }
}

/* ============================================================
   CONNECT (Contact)
   ============================================================ */
.connect__inner {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.connect__email {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--color-text);
  text-decoration: none;
  display: inline-block;
  margin-bottom: var(--space-2);
  transition: color var(--transition-interactive);
}

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

.connect__note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.connect__socials {
  display: flex;
  justify-content: center;
  gap: var(--space-5);
  list-style: none;
}

.connect__socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-divider);
  transition: color var(--transition-interactive),
              border-color var(--transition-interactive),
              background var(--transition-interactive);
}

.connect__socials a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.connect__socials svg {
  width: 18px;
  height: 18px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--color-divider);
  text-align: center;
}

.footer__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution a {
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__attribution a:hover {
  color: var(--color-text-muted);
}

/* ============================================================
   RESPONSIVE — Tablet
   ============================================================ */
@media (max-width: 1024px) {
  .hero__content {
    gap: var(--space-10);
  }

  .about__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }

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

  .work__vision-content {
    grid-template-columns: 1fr 0.6fr;
    gap: var(--space-8);
  }

  .video-featured {
    grid-template-columns: 1fr;
  }

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

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

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

}

/* ============================================================
   RESPONSIVE — Mobile
   ============================================================ */
@media (max-width: 768px) {
  .header__nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .work__vision-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .work__vision-graphic {
    display: flex;
    justify-content: center;
  }

  .ai-visual {
    width: 200px;
    height: 200px;
  }

  .ai-visual__ring--1 { width: 100px; height: 100px; }
  .ai-visual__ring--2 { width: 150px; height: 150px; }
  .ai-visual__ring--3 { width: 200px; height: 200px; }

  .ai-visual__core { width: 60px; height: 60px; }
  .ai-visual__core svg { width: 32px; height: 32px; }

  .hero {
    padding-top: var(--space-24);
    padding-bottom: var(--space-16);
  }

  .hero__content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero__image {
    order: -1;
    justify-content: center;
  }

  .hero__image img {
    max-width: 280px;
  }

  .hero__name {
    font-size: var(--text-2xl);
  }

  .hero__text {
    text-align: center;
    align-items: center;
  }

  .hero__quote {
    text-align: center;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .about__image {
    position: static;
    order: -1;
  }

  .about__image img {
    max-height: 400px;
    width: 100%;
  }

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

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

  .video-featured {
    grid-template-columns: 1fr;
  }

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

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


  .work__vision--enhanced {
    padding: var(--space-6);
  }

  .work__vision-stats {
    gap: var(--space-4);
    flex-wrap: wrap;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-3);
  }

  .section__title {
    font-size: var(--text-xl);
  }

  .connect__socials {
    flex-wrap: wrap;
  }
}


/* ============================================================
   READ MORE LINK STYLE
   ============================================================ */
.read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
}

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

.read-more svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-interactive);
}

.read-more:hover svg {
  transform: translateX(3px);
}

/* Divider line */
.section-divider {
  max-width: var(--content-wide);
  margin: 0 auto;
  height: 1px;
  background: var(--color-divider);
}