/* ===== NAVIGATION ===== */
.nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: var(--nav-bg); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  transition: background 0.4s ease;
}
.nav-inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1500px; margin: 0 auto; padding: 1rem 2rem; gap: 2rem;
}
.nav-logo {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.4rem;
  font-weight: 800; letter-spacing: -0.03em; text-transform: uppercase;
  color: var(--primary); transition: color 0.4s ease;
  margin-right: 2.5rem; flex-shrink: 0;
}
html.light .nav-logo { color: var(--on-surface); }
.nav-links { display: flex; gap: 2rem; align-items: center; flex-shrink: 0; margin-right: auto; }
.nav-links a {
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 1rem;
  color: var(--on-surface-variant); transition: color 0.3s;
  letter-spacing: -0.01em;
  min-width: 5.5rem; text-align: center;
}
.nav-links a:hover, .nav-links a.active { color: var(--on-surface); }
.nav-actions { display: flex; gap: 1rem; align-items: center; }
.nav-actions .btn-primary { min-width: 12rem; text-align: center; }
.nav-actions .btn-ghost { min-width: 6rem; text-align: center; }

/* ===== BUTTONS ===== */
.btn-primary {
  padding: 0.625rem 1.5rem; background: var(--primary); color: var(--on-primary);
  font-weight: 700; border-radius: 0.375rem; font-size: 0.875rem;
  transition: transform 0.2s, box-shadow 0.3s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px var(--shadow-color); }
.btn-ghost {
  padding: 0.625rem 1.5rem; background: transparent;
  border: 1px solid var(--outline-variant); color: var(--on-surface);
  font-weight: 600; border-radius: 0.375rem; font-size: 0.875rem;
  transition: background 0.3s, border-color 0.3s;
}
.btn-ghost:hover { background: var(--surface-container); border-color: var(--outline); }

/* ===== LANGUAGE & THEME CONTROLS ===== */
.controls-group { display: flex; align-items: center; gap: 0.75rem; }
.lang-switcher { display: flex; gap: 0.5rem; }
.lang-btn {
  width: 28px; height: 20px; border-radius: 3px; overflow: hidden;
  opacity: 0.4; transition: opacity 0.3s, transform 0.2s;
  background: var(--surface-container-high); display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-weight: 700; color: var(--on-surface-variant);
  font-family: 'Inter', sans-serif; letter-spacing: 0.02em;
}
html.light .lang-btn {
  opacity: 0.55; background: var(--surface-container-highest);
  color: var(--on-surface); border: 1px solid var(--outline-variant);
}
.lang-btn:hover { opacity: 0.7; transform: scale(1.1); }
html.light .lang-btn:hover { opacity: 0.85; }
.lang-btn.active { opacity: 1; outline: 2px solid var(--secondary); outline-offset: 1px; }
html.light .lang-btn.active { opacity: 1; background: var(--surface-container-highest); }
.lang-btn img { width: 100%; height: 100%; object-fit: cover; }
.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: var(--surface-container-high); color: var(--on-surface-variant);
  transition: background 0.3s, color 0.3s; margin-left: 0.5rem;
}
.theme-toggle:hover { background: var(--surface-bright); color: var(--on-surface); }
.theme-toggle .material-symbols-outlined { font-size: 18px; }
.divider-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--outline-variant); margin: 0 0.25rem;
}

/* ===== SECTION HEADERS ===== */
.section-header { margin-bottom: 4rem; }
.section-label {
  font-family: 'Inter', sans-serif; font-size: 0.75rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--secondary); margin-bottom: 0.75rem;
}
.section-title {
  font-family: 'Space Grotesk', sans-serif; font-size: 2.5rem;
  font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.75rem;
}
.section-bar { width: 3rem; height: 3px; background: var(--secondary); border-radius: 2px; }

/* ===== BENTO CARDS ===== */
.bento-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
}
.bento-card {
  padding: 2.25rem; border-radius: 0.75rem;
  background: var(--surface-container-low);
  border: 1px solid var(--glass-border);
  transition: border-color 0.4s, background 0.4s, transform 0.3s;
}
.bento-card:hover { border-color: rgba(202, 222, 251, 0.15); transform: translateY(-2px); }
html.light .bento-card:hover { border-color: rgba(58, 90, 124, 0.15); }
.bento-card.span-2 { grid-column: span 2; }
.bento-card.span-full { grid-column: 1 / -1; }
.bento-card .material-symbols-outlined { font-size: 2.5rem; margin-bottom: 1.25rem; }
.bento-card .icon-primary { color: var(--primary); }
.bento-card .icon-secondary { color: var(--secondary); }
.bento-card h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.35rem;
  font-weight: 700; margin-bottom: 0.75rem;
}
.bento-card p { color: var(--on-surface-variant); line-height: 1.7; font-size: 0.95rem; }
.bento-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 1.25rem; color: var(--secondary);
  font-family: 'Inter', sans-serif; font-size: 0.875rem; font-weight: 600;
  transition: gap 0.3s;
}
.bento-link:hover { gap: 1rem; }
.bento-progress {
  width: 100%; height: 4px; background: var(--surface-dim);
  border-radius: 4px; overflow: hidden; margin-top: 1.5rem;
}
.bento-progress-fill { height: 100%; border-radius: 4px; }

/* ===== AI FEATURE CARD ===== */
.ai-card-layout { display: flex; gap: 2rem; align-items: center; flex-wrap: wrap; }
.ai-card-content { flex: 1; min-width: 240px; }
.ai-card-icons { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; flex-shrink: 0; }
.ai-icon-box {
  width: 56px; height: 56px; border-radius: 0.5rem;
  display: flex; align-items: center; justify-content: center;
}
.ai-icon-box.primary-bg { background: rgba(202, 222, 251, 0.12); }
.ai-icon-box.secondary-bg { background: rgba(121, 245, 247, 0.12); }
.ai-icon-box.neutral-bg { background: var(--surface-container-high); }

/* ===== MOBILE MENU ===== */
.mobile-menu-btn { display: none; background: none; color: var(--on-surface); }
.mobile-menu {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  background: var(--bg); z-index: 200; padding: 2rem;
  flex-direction: column; justify-content: center; align-items: center; gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem;
  font-weight: 700; color: var(--on-surface);
}
.mobile-menu-close {
  position: absolute; top: 1.5rem; right: 1.5rem;
  background: none; color: var(--on-surface);
}
.mobile-menu-lang { margin-top: 1rem; }
.mobile-menu-theme { margin-top: 0.5rem; }

/* ===== FOOTER SOCIAL LINKS ===== */
.footer .footer-social-link {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--outline-variant);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.3s;
}
.footer .footer-social-link:hover { background: var(--surface-container-high); transform: none; }

/* ===== PAGE HERO (compact, for sub-pages) ===== */
.page-hero {
  padding: 8rem 0 4rem; background: var(--bg);
  transition: background-color 0.4s ease; position: relative; overflow: hidden;
}
.page-hero-glow {
  position: absolute; top: -20%; right: -10%; width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(202, 222, 251, 0.06) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none;
}
html.light .page-hero-glow {
  background: radial-gradient(circle, rgba(58, 90, 124, 0.04) 0%, transparent 70%);
}
.page-hero .section-label { margin-bottom: 0.75rem; }
.page-hero .section-title { margin-bottom: 1rem; }
.page-hero-desc {
  font-size: 1.125rem; color: var(--on-surface-variant);
  max-width: 600px; line-height: 1.7;
}

/* ===== CTA BANNER ===== */
.cta-banner {
  padding: 5rem 0; background: var(--surface-container);
  transition: background-color 0.4s ease; text-align: center;
}
.cta-banner h2 {
  font-family: 'Space Grotesk', sans-serif; font-size: 2rem;
  font-weight: 700; margin-bottom: 1rem;
}
.cta-banner p {
  color: var(--on-surface-variant); font-size: 1.05rem;
  max-width: 500px; margin: 0 auto 2rem; line-height: 1.7;
}

/* ===== IMAGE COMPARISON SLIDER ===== */
.comparison-container {
  position: relative; overflow: hidden; border-radius: 0.75rem;
  cursor: ew-resize; user-select: none; aspect-ratio: 16/9;
  border: 1px solid var(--glass-border);
}
.comparison-container img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.comparison-container .comparison-after {
  clip-path: inset(0 50% 0 0);
}
.comparison-slider {
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 3px; background: rgba(255,255,255,0.6); backdrop-filter: blur(4px);
  transform: translateX(-50%); z-index: 10;
}
.comparison-handle {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 40px; height: 40px; border-radius: 50%;
  background: white; box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  display: flex; align-items: center; justify-content: center;
}
.comparison-handle::before {
  content: '◄ ►'; font-size: 0.6rem; color: #333; letter-spacing: 2px;
}
.comparison-label {
  position: absolute; bottom: 1rem; padding: 0.35rem 0.75rem;
  background: rgba(0,0,0,0.6); color: white; border-radius: 0.25rem;
  font-family: 'Inter', sans-serif; font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase; z-index: 5;
}
.comparison-label.before { left: 1rem; }
.comparison-label.after { right: 1rem; }

/* ===== PORTFOLIO PIECES ===== */
.portfolio-piece { max-width: 900px; margin: 0 auto; }
.portfolio-piece-header { margin-bottom: 1rem; }
.portfolio-industry {
  font-family: 'Inter', sans-serif; font-size: 0.7rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--secondary); font-weight: 700;
  display: block; margin-bottom: 0.75rem;
}
.portfolio-piece-title {
  font-family: 'Space Grotesk', sans-serif; font-size: 2.25rem;
  font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.75rem;
}
.portfolio-piece-desc {
  color: var(--on-surface-variant); line-height: 1.7;
  font-size: 1.05rem; max-width: 640px;
}
.portfolio-visit-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  margin-top: 1rem; color: var(--secondary);
  font-family: 'Inter', sans-serif; font-size: 0.875rem; font-weight: 600;
  transition: gap 0.3s, opacity 0.3s;
}
.portfolio-visit-link:hover { gap: 0.75rem; opacity: 0.8; }
.portfolio-visit-link .material-symbols-outlined { font-size: 1rem; }

/* Video layout */
.portfolio-video-layout {
  display: grid; grid-template-columns: 2.2fr 1fr;
  gap: 3rem; align-items: center; margin-top: 2.5rem;
}
.portfolio-video-info .showcase-tag { margin-bottom: 0.75rem; }
.portfolio-video-info h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.35rem;
  font-weight: 700; margin-bottom: 0.75rem;
}
.portfolio-video-info p {
  color: var(--on-surface-variant); line-height: 1.7; font-size: 0.95rem;
}

/* Device mockup frame */
.device-mockup {
  border-radius: 0.75rem; overflow: hidden;
  background: var(--surface-container-high);
  border: 1px solid var(--glass-border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
html.light .device-mockup {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}
.device-mockup-bar {
  display: flex; gap: 6px; padding: 0.6rem 0.85rem;
  background: var(--surface-container-highest);
  border-bottom: 1px solid var(--glass-border);
}
.device-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--outline-variant);
}
.device-mockup-screen { position: relative; }
.device-mockup-screen video {
  display: block; width: 100%; height: auto;
}

/* ===== PORTFOLIO SHOWCASE CARD ===== */
.showcase-card {
  border-radius: 0.75rem; overflow: hidden;
  background: var(--surface-container-low);
  border: 1px solid var(--glass-border);
  transition: border-color 0.4s, transform 0.3s;
}
.showcase-card:hover { border-color: rgba(202, 222, 251, 0.15); transform: translateY(-2px); }
html.light .showcase-card:hover { border-color: rgba(58, 90, 124, 0.15); }
.showcase-card-img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  border-bottom: 1px solid var(--glass-border);
}
.showcase-card-body { padding: 2rem; }
.showcase-card-body h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.35rem;
  font-weight: 700; margin-bottom: 0.5rem;
}
.showcase-card-body .showcase-tag {
  display: inline-block; padding: 0.25rem 0.75rem; border-radius: 0.25rem;
  background: var(--secondary-container); color: var(--secondary);
  font-family: 'Inter', sans-serif; font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 1rem;
}
.showcase-card-body p {
  color: var(--on-surface-variant); line-height: 1.7; font-size: 0.95rem;
}

/* ===== FEATURE COMPARISON TABLE ===== */
.comparison-table-wrapper { overflow-x: auto; margin-top: 4rem; }
.comparison-table {
  width: 100%; border-collapse: collapse; font-size: 0.9rem;
}
.comparison-table th, .comparison-table td {
  padding: 1rem 1.5rem; text-align: left;
  border-bottom: 1px solid var(--glass-border);
}
.comparison-table thead th {
  font-family: 'Space Grotesk', sans-serif; font-weight: 700;
  font-size: 1rem; color: var(--on-surface);
  background: var(--surface-container);
  position: sticky; top: 0;
}
.comparison-table thead th:first-child { border-radius: 0.5rem 0 0 0; }
.comparison-table thead th:last-child { border-radius: 0 0.5rem 0 0; }
.comparison-table tbody td { color: var(--on-surface-variant); }
.comparison-table tbody td:first-child {
  font-weight: 600; color: var(--on-surface);
}
.comparison-table .check { color: var(--secondary); font-size: 1.2rem; }
.comparison-table .dash { color: var(--outline); }

/* ===== FAQ ACCORDION ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--glass-border);
}
.faq-question {
  width: 100%; padding: 1.25rem 0; display: flex; justify-content: space-between;
  align-items: center; background: none; color: var(--on-surface);
  font-family: 'Space Grotesk', sans-serif; font-size: 1.05rem; font-weight: 600;
  text-align: left; cursor: pointer; transition: color 0.3s;
}
.faq-question:hover { color: var(--primary); }
.faq-question .material-symbols-outlined {
  font-size: 1.25rem; transition: transform 0.3s; color: var(--on-surface-variant);
}
.faq-item.open .faq-question .material-symbols-outlined { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 300px; padding-bottom: 1.25rem; }
.faq-answer p {
  color: var(--on-surface-variant); line-height: 1.7; font-size: 0.95rem;
}

/* ===== SERVICE DETAIL CARDS ===== */
.service-detail {
  padding: 4rem 0; background: var(--surface);
  transition: background-color 0.4s ease;
}
.service-detail:nth-child(even) { background: var(--surface-container-low); }
.service-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start;
}
.service-detail-icon {
  font-size: 3rem; margin-bottom: 1.5rem; display: block;
}
.service-detail h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.75rem;
  font-weight: 700; margin-bottom: 1rem;
}
.service-detail p {
  color: var(--on-surface-variant); line-height: 1.8; font-size: 1rem;
  margin-bottom: 1.5rem;
}
.service-detail-features { list-style: none; }
.service-detail-features li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.5rem 0; color: var(--on-surface-variant); font-size: 0.95rem;
}
.service-detail-features .material-symbols-outlined {
  font-size: 1.1rem; color: var(--secondary); flex-shrink: 0; margin-top: 0.2rem;
}

/* ===== AI SOLUTIONS (services page) ===== */
.ai-solutions {
  padding: 5rem 0; transition: background-color 0.4s ease;
  border-top: 1px solid var(--outline-variant);
}
.ai-solutions-content { max-width: 640px; }
.ai-solutions-content h2 {
  font-family: 'Space Grotesk', sans-serif; font-size: 2rem;
  font-weight: 700; margin-bottom: 1rem;
}
.ai-solutions-content > p {
  color: var(--on-surface-variant); line-height: 1.8; font-size: 1rem;
  margin-bottom: 2rem;
}
.ai-solutions-list { list-style: none; margin-bottom: 2rem; }
.ai-solutions-list li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.5rem 0; color: var(--on-surface-variant); font-size: 0.95rem;
}
.ai-solutions-list .material-symbols-outlined {
  font-size: 1.1rem; color: var(--secondary); flex-shrink: 0; margin-top: 0.2rem;
}

/* ===== TEAM CARDS (about page) ===== */
.team-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; max-width: 700px; }
.team-card {
  padding: 2.5rem; border-radius: 0.75rem;
  background: var(--surface-container-low);
  border: 1px solid var(--glass-border);
  text-align: center;
}
.team-card-avatar {
  width: 80px; height: 80px; border-radius: 50%;
  background: var(--surface-container-high);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.25rem;
}
.team-card-avatar .material-symbols-outlined { font-size: 2.5rem; color: var(--primary); }
.team-card h4 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem;
  font-weight: 700; margin-bottom: 0.25rem;
}
.team-card .team-role {
  font-family: 'Inter', sans-serif; font-size: 0.8rem;
  color: var(--secondary); text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.team-card p { color: var(--on-surface-variant); font-size: 0.9rem; line-height: 1.6; }

/* ===== VALUE CARDS (about page) ===== */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.value-card {
  padding: 2.5rem; border-radius: 0.75rem;
  background: var(--surface-container-low);
  border: 1px solid var(--glass-border);
  transition: background 0.4s, border-color 0.4s;
}
.value-card:hover { background: var(--surface-container); }
.value-card .material-symbols-outlined {
  font-size: 2rem; color: var(--secondary); margin-bottom: 1rem;
}
.value-card h4 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem;
  font-weight: 700; margin-bottom: 0.5rem;
}
.value-card p { color: var(--on-surface-variant); line-height: 1.7; font-size: 0.95rem; }