/* ============================================
   COMPONENTS, Remco Vroom
   Premium dark-mode-first personal brand site
   ============================================ */

/* ====== NAVIGATION ====== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-3) var(--space-4);
  transition: background var(--transition-interactive),
              backdrop-filter var(--transition-interactive);
}

.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-logo {
  text-decoration: none;
  color: var(--color-text);
  transition: color var(--transition-interactive);
}

.nav-logo-monogram {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-interactive);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive),
              background var(--transition-interactive);
}

.theme-btn:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.06);
}

[data-theme="light"] .theme-btn:hover {
  background: rgba(0,0,0,0.06);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition-interactive),
              opacity var(--transition-interactive);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100dvh;
  z-index: 999;
  padding: var(--space-24) var(--space-8) var(--space-8);
  transition: right 400ms var(--ease-golden);
  border-radius: 0;
  border-left: 1px solid rgba(255,255,255,0.08);
}

.mobile-menu.open {
  right: 0;
}

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

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

/* Mobile overlay backdrop */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms var(--ease-golden);
}

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

/* ====== HERO ====== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  overflow-x: clip;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0A0A0F 0%, #0D1B2A 40%, #001A20 100%);
  z-index: 0;
}

[data-theme="light"] .hero-bg {
  background: linear-gradient(135deg, #F8F9FA 0%, #E8EFF8 40%, #E0F0F0 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(1px 1px at 20px 30px, rgba(0,194,204,0.15), transparent),
                     radial-gradient(1px 1px at 40px 70px, rgba(0,194,204,0.1), transparent),
                     radial-gradient(1px 1px at 50px 160px, rgba(0,194,204,0.12), transparent),
                     radial-gradient(1px 1px at 90px 40px, rgba(0,194,204,0.08), transparent),
                     radial-gradient(1px 1px at 130px 80px, rgba(245,166,35,0.06), transparent),
                     radial-gradient(1px 1px at 160px 120px, rgba(0,194,204,0.1), transparent);
  background-size: 200px 200px;
  animation: particleDrift 20s linear infinite;
}

@keyframes particleDrift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-200px, -200px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-16) var(--space-4) 0;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-4);
  align-items: center;
  width: 100%;
  min-height: 100dvh;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.hero-subline {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 50ch;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse, rgba(0,194,204,0.15) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

[data-theme="light"] .hero-glow {
  background: radial-gradient(ellipse, rgba(0,194,204,0.1) 0%, transparent 70%);
}

.hero-image {
  width: auto;
  max-width: 100%;
  max-height: 70vh;
  height: auto;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 60px rgba(0,194,204,0.2));
  border-radius: var(--radius-md);
}

/* ====== BUTTONS ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-interactive);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #00C2CC 0%, #009BA3 100%);
  color: #0A0A0F;
  box-shadow: 0 4px 16px rgba(0,194,204,0.15);
}

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(0,194,204,0.25);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0,194,204,0.15);
}

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

.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0,194,204,0.08);
}

.btn-ghost:active {
  transform: translateY(0);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ====== ABOUT ====== */
.about {
  padding: clamp(var(--space-12), 8vw, var(--space-32)) var(--space-4);
  background: var(--color-surface-offset);
}

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

.about-glass {
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 4vw, var(--space-12));
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.about-name {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.about-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.about-bio {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 60ch;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.stat {
  text-align: center;
  padding: var(--space-4) var(--space-2);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-divider);
}

[data-theme="light"] .stat {
  background: rgba(0,0,0,0.03);
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-1);
}

.stat-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
}

.about-image-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/9;
}

.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-md);
}

/* ====== ARTICLES ====== */
.articles {
  padding: clamp(var(--space-12), 8vw, var(--space-32)) var(--space-4);
  background: var(--color-bg);
}

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

.articles-header {
  margin-bottom: var(--space-12);
}

.section-accent-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
  border-radius: 2px;
  margin-bottom: var(--space-4);
}

.articles-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.articles-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: var(--space-6);
}

.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
  text-decoration: none;
  color: inherit;
  display: block;
}

.article-card:hover {
  border-color: rgba(0,194,204,0.3);
  box-shadow: 0 8px 32px rgba(0,194,204,0.08);
  transform: translateY(-2px);
}

.article-card:active {
  transform: translateY(0);
}

.article-card-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.article-card-body {
  padding: var(--space-5);
}

.article-card-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.article-card-meta {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  display: flex;
  gap: var(--space-3);
}

/* ====== AI LANDSCAPE ====== */
.landscape {
  padding: clamp(var(--space-12), 8vw, var(--space-32)) var(--space-4);
  background: var(--color-surface-offset);
  position: relative;
  overflow: hidden;
}

.landscape::before {
  content: '';
  position: absolute;
  top: 0;
  right: -20%;
  width: 50%;
  height: 50%;
  background: radial-gradient(ellipse, rgba(0,194,204,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.landscape-container {
  max-width: var(--content-wide);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.landscape-header {
  margin-bottom: var(--space-12);
}

.landscape-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
}

.landscape-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.landscape-stat {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.landscape-stat:hover {
  border-color: rgba(0,194,204,0.2);
  box-shadow: 0 8px 32px rgba(0,194,204,0.06);
}

.landscape-number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-primary);
  display: block;
  line-height: 1;
  font-variant-numeric: tabular-nums lining-nums;
}

.landscape-suffix {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
}

.landscape-context {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 50ch;
}

/* ====== SPEAKING & CONTACT ====== */
.speaking {
  padding: clamp(var(--space-12), 8vw, var(--space-32)) var(--space-4);
  background: linear-gradient(135deg, #0A0A0F 0%, #0D1B2A 50%, #001A20 100%);
  text-align: center;
}

[data-theme="light"] .speaking {
  background: linear-gradient(135deg, #F8F9FA 0%, #E8EFF8 50%, #E0F0F0 100%);
}

.speaking-container {
  max-width: var(--content-default);
  margin: 0 auto;
}

.speaking-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.speaking-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  max-width: 55ch;
  margin-left: auto;
  margin-right: auto;
}

.speaking-topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-10);
}

.topic-pill {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border: 1px solid rgba(0,194,204,0.2);
}

.speaking-contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition-interactive);
}

.social-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0,194,204,0.15);
}

/* ====== FOOTER ====== */
.footer {
  padding: var(--space-8) var(--space-4);
  border-top: 1px solid var(--color-divider);
  background: var(--color-bg);
}

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

.footer p {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.footer-links a {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

.footer-links svg {
  display: block;
}

/* ====== SCROLL REVEAL ANIMATIONS ====== */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: revealFade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 35%;
  }
}

@keyframes revealFade {
  to { opacity: 1; }
}

/* ====== RESPONSIVE ====== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: var(--space-24);
    align-items: center;
    min-height: auto;
  }

  .hero-text {
    align-items: center;
    order: 1;
    padding-bottom: var(--space-8);
  }

  .hero-subline {
    max-width: 45ch;
    margin: 0 auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image-wrap {
    order: 2;
    max-width: 500px;
    margin: 0 auto;
  }

  .hero-image {
    max-width: 100%;
  }

  .about-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-bio {
    margin-left: auto;
    margin-right: auto;
  }

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

  .landscape-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-content {
    padding-top: var(--space-20);
    gap: var(--space-4);
  }

  .hero-headline {
    font-size: clamp(2.5rem, 10vw, 5rem);
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .stat {
    padding: var(--space-3) var(--space-2);
  }

  .stat-number {
    font-size: var(--text-lg);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-image-wrap {
    max-width: 100%;
  }

  .hero-image {
    max-width: 100%;
  }

  .speaking-topics {
    flex-direction: column;
    align-items: center;
  }

  .speaking-contact {
    flex-direction: column;
  }
}

/* ====== TAP STATES FOR TOUCH ====== */
@media (hover: none) {
  .btn:active {
    transform: scale(0.98);
  }

  .article-card:active {
    transform: scale(0.99);
  }

  .nav-links a::after {
    display: none;
  }
}