/* ==========================================================================
   Applanet (applanet.io) Modern Design Stylesheet
   ========================================================================== */

:root {
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  
  /* Color Palette */
  --color-bg: #FFFFFF;
  --color-bg-subtle: #F8FAFC;
  --color-bg-card: #FFFFFF;
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;

  --color-text-main: #0F172A;
  --color-text-body: #334155;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;

  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #38BDF8;
  --color-cyan: #06B6D4;
  --color-violet: #6366F1;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 25px rgba(37, 99, 235, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --header-height: 84px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
}

section[id] {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

body {
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.desktop-only {
  display: block;
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
  z-index: 1000;
  transition: all 0.25s ease;
}

.nav-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
  transition: transform 0.2s ease;
}

.logo-img:hover {
  transform: scale(1.02);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

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

.nav-item {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--color-text-main);
  transition: color 0.2s ease;
}

.nav-item:hover {
  color: var(--color-primary);
}

/* Language Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px 6px;
  font-size: 13px;
  font-weight: 700;
  gap: 2px;
}

.lang-btn {
  padding: 3px 8px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: all 0.2s ease;
  line-height: 1.2;
}

.lang-btn:hover {
  color: var(--color-primary);
}

.lang-btn.active {
  background: #FFFFFF;
  color: var(--color-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.lang-sep {
  color: #CBD5E1;
  font-size: 11px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 28px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-btn span {
  width: 100%;
  height: 2.5px;
  background: var(--color-text-main);
  border-radius: 4px;
  transition: all 0.25s ease;
  transform-origin: center;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

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

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 14.5px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
  color: #FFFFFF;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  color: var(--color-text-main);
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 14.5px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1.5px);
}

.btn-large {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
  padding: 13px;
  font-size: 15px;
}

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

.hero-section {
  position: relative;
  padding: 90px 0 70px;
  text-align: center;
  background: radial-gradient(circle at 50% 15%, rgba(6, 182, 212, 0.08) 0%, rgba(37, 99, 235, 0.03) 45%, transparent 70%);
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #EFF6FF;
  border: 1px solid #DBEAFE;
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 700;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
}

.hero-title {
  font-size: clamp(34px, 5.2vw, 54px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -1.2px;
  color: var(--color-text-main);
  margin-bottom: 22px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--color-text-muted);
  max-width: 800px;
  line-height: 1.65;
  margin-bottom: 36px;
  word-break: keep-all;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 50px;
}

.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.tag-item {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text-body);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Section Common
   ========================================================================== */

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 1.8px;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(26px, 3.8vw, 36px);
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--color-text-main);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 16.5px;
  color: var(--color-text-muted);
  line-height: 1.6;
  word-break: keep-all;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services-section {
  padding: 80px 0;
  background-color: var(--color-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.highlight-card {
  border-top: 4px solid var(--color-primary);
}

.service-card:nth-child(2) {
  border-top: 4px solid var(--color-cyan);
}

.card-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 22px;
}

.card-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--color-text-main);
  margin-bottom: 14px;
}

.card-desc {
  font-size: 15px;
  color: var(--color-text-body);
  margin-bottom: 28px;
  line-height: 1.65;
  word-break: keep-all;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-top: 1px solid #F1F5F9;
  padding-top: 24px;
}

.feature-list li {
  font-size: 14.5px;
  line-height: 1.55;
}

.feature-list li strong {
  display: block;
  color: var(--color-text-main);
  font-weight: 700;
  margin-bottom: 3px;
}

.feature-list li span {
  color: var(--color-text-muted);
}

.link-inline {
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 600;
}

/* ==========================================================================
   Showcase Section (Travel Buddy)
   ========================================================================== */

.showcase-section {
  padding: 90px 0;
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.showcase-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: #0284C7;
  letter-spacing: 1.8px;
  margin-bottom: 12px;
}

.showcase-header {
  margin-bottom: 48px;
}

.showcase-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.showcase-subtitle {
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 780px;
  word-break: keep-all;
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.showcase-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.showcase-feature-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #FFFFFF;
  padding: 20px 22px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all 0.22s ease;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.showcase-feature-item:hover {
  transform: translateX(4px);
  border-color: #60A5FA;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
}

.showcase-feature-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.showcase-feature-item.active {
  background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
  border-color: #2563EB;
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.14);
  transform: translateX(6px);
}

.showcase-feature-item.active .feature-num {
  background: #2563EB;
  color: #FFFFFF;
}

.feature-num {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  background: #EFF6FF;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.feature-item-body {
  flex: 1;
  min-width: 0;
}

.feature-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.feature-item-title {
  font-size: 16.5px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 0;
}

.feature-item-desc {
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.55;
  word-break: keep-all;
}

/* Inline Real-Device Video Showcase Mockup */
.feature-video-box {
  flex-shrink: 0;
  width: 124px;
  max-width: 100%;
  cursor: pointer;
  perspective: 1000px;
  margin-left: 6px;
}

.phone-frame-mockup {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 9 / 19.5;
  background: #090D16;
  border-radius: 18px;
  overflow: hidden;
  border: 3px solid #1E293B;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.16), 0 2px 6px rgba(0, 0, 0, 0.08);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.showcase-feature-item:hover .phone-frame-mockup,
.feature-video-box:hover .phone-frame-mockup,
.showcase-feature-item:focus-within .phone-frame-mockup {
  transform: translateY(-2px) scale(1.03);
  border-color: #3B82F6;
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.24), 0 4px 10px rgba(0, 0, 0, 0.1);
}

.feature-inline-video {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  display: block;
  background: #000000;
  border-radius: 14px;
  pointer-events: none;
}

.video-tap-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 8px 4px;
  background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.7) 100%);
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.video-tap-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 9999px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(4px);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.video-tap-badge.has-audio {
  background: rgba(29, 78, 216, 0.92);
  border-color: rgba(147, 197, 253, 0.5);
}

.showcase-feature-item:hover .video-tap-badge,
.feature-video-box:hover .video-tap-badge {
  background: #2563EB;
  border-color: #93C5FD;
  transform: scale(1.05);
}

/* Right Architecture & Video Showcase Card */
.showcase-card {
  background: #0F172A;
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid #1E293B;
  position: sticky;
  top: 96px;
}

.arch-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.arch-pill {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 1.2px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.2);
  color: #38BDF8;
  margin-bottom: 8px;
}

.arch-card-header h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 0;
  line-height: 1.35;
}

.arch-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.arch-action-btn {
  background: rgba(255, 255, 255, 0.08);
  color: #E2E8F0;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.arch-action-btn:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: #38BDF8;
  color: #FFFFFF;
}

.arch-back-btn {
  background: rgba(37, 99, 235, 0.35);
  border-color: #60A5FA;
  color: #FFFFFF;
}

/* Architecture Diagram Preview inside Card */
.arch-diagram-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid #334155;
  background: #091020;
  cursor: zoom-in;
  margin-bottom: 0;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.arch-diagram-frame:hover {
  border-color: #38BDF8;
  transform: translateY(-2px);
}

.arch-diagram-img {
  width: 100%;
  height: auto;
  display: block;
}

.arch-diagram-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.1) 45%, transparent 100%);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 12px;
  opacity: 0.92;
  transition: opacity 0.2s ease;
}

.arch-diagram-frame:hover .arch-diagram-overlay {
  opacity: 1;
}

.arch-zoom-badge {
  background: rgba(15, 23, 42, 0.92);
  color: #38BDF8;
  border: 1px solid rgba(56, 189, 248, 0.45);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  white-space: nowrap;
}

.arch-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.arch-tag {
  font-size: 11.5px;
  font-weight: 600;
  color: #CBD5E1;
  background: rgba(30, 41, 59, 0.85);
  border: 1px solid #334155;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.arch-footer p {
  font-size: 13.5px;
  color: #94A3B8;
  line-height: 1.55;
  background: rgba(30, 41, 59, 0.55);
  border: 1px solid rgba(51, 65, 85, 0.8);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}

.arch-footer strong {
  color: #38BDF8;
}

/* Lock background body scroll when layer popup is active */
body.modal-open {
  overflow: hidden !important;
  touch-action: none !important;
}

/* Dedicated <dialog> Layer Popup Modal for Real-Device Feature Videos */
.video-modal {
  margin: auto;
  width: min(92vw, 460px);
  max-height: 94vh;
  max-height: 94dvh;
  background: #0B1120;
  color: #FFFFFF;
  border: 1.5px solid #334155;
  border-radius: 24px;
  padding: 0;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.85);
  overflow: hidden;
  overscroll-behavior: contain;
  contain: layout style paint;
}

.video-modal::backdrop {
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
}

.video-modal-inner {
  display: flex;
  flex-direction: column;
  max-height: 94vh;
  max-height: 94dvh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  contain: layout;
}

.video-modal-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  min-height: 68px;
  box-sizing: border-box;
  background: #0F172A;
  border-bottom: 1px solid #1E293B;
}

.video-modal-header-left {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.video-header-top-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.video-counter-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  color: #38BDF8;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.video-modal-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: #F8FAFC;
  margin: 0;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.08);
  color: #CBD5E1;
  border: 1px solid #334155;
  border-radius: var(--radius-full);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
  line-height: 1;
  padding: 0;
}

.modal-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #EF4444;
  color: #FFFFFF;
  transform: rotate(90deg);
}

.video-modal-body {
  position: relative;
  padding: 16px 16px 20px;
  background: radial-gradient(circle at center, rgba(37, 99, 235, 0.15) 0%, #080E1A 85%);
  display: flex;
  justify-content: center;
  align-items: center;
  touch-action: none;
  user-select: none;
  min-height: min(74vh, 74dvh, 560px);
  box-sizing: border-box;
  contain: layout paint;
}

.bezel-fullscreen-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(148, 163, 184, 0.4);
  color: #F8FAFC;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 15;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  padding: 0;
}

.bezel-fullscreen-btn:hover {
  background: #2563EB;
  border-color: #60A5FA;
  color: #FFFFFF;
  transform: scale(1.08);
}

/* Fullscreen mode for video modal */
.video-modal.is-fullscreen-mode {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100dvh !important;
  max-width: 100vw !important;
  max-height: 100dvh !important;
  margin: 0 !important;
  border-radius: 0 !important;
  border: none !important;
  background: #000000 !important;
  padding: 0 !important;
  z-index: 10000 !important;
}

.video-modal.is-fullscreen-mode .video-modal-content {
  width: 100% !important;
  height: 100% !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
  padding: 0 !important;
  background: #000000 !important;
}

.video-modal.is-fullscreen-mode .video-modal-header {
  display: none !important;
}

.video-modal.is-fullscreen-mode .video-modal-body {
  width: 100% !important;
  height: 100% !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #000000 !important;
}

.video-modal.is-fullscreen-mode .phone-bezel-modal {
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  max-height: 100% !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: #000000 !important;
  aspect-ratio: auto !important;
}

.video-modal.is-fullscreen-mode .phone-bezel-modal::before {
  display: none !important;
}

.video-modal.is-fullscreen-mode .modal-video-player {
  width: 100% !important;
  height: 100% !important;
  object-fit: contain !important;
  border-radius: 0 !important;
  aspect-ratio: auto !important;
}

.video-modal.is-fullscreen-mode .bezel-fullscreen-btn {
  top: 20px;
  right: 20px;
  width: 38px;
  height: 38px;
  background: rgba(30, 41, 59, 0.85);
  font-size: 1.25rem;
}

/* Slide Transition Animations for Swiping Navigation */
@keyframes slideInFromRight {
  0% {
    opacity: 0.35;
    transform: translateX(36px) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes slideInFromLeft {
  0% {
    opacity: 0.35;
    transform: translateX(-36px) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

.phone-bezel-modal.slide-next {
  animation: slideInFromRight 0.26s cubic-bezier(0.16, 1, 0.3, 1);
}

.phone-bezel-modal.slide-prev {
  animation: slideInFromLeft 0.26s cubic-bezier(0.16, 1, 0.3, 1);
}

.phone-stage-modal {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.phone-bezel-modal {
  width: 260px;
  max-width: 100%;
  aspect-ratio: 9 / 19.5;
  border-radius: 30px;
  padding: 8px;
  background: #1E293B;
  border: 2px solid #475569;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.65);
  transition: transform 0.2s ease;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  contain: layout paint;
}

.modal-video-player {
  width: 100%;
  height: 100%;
  aspect-ratio: 9 / 19.5;
  border-radius: 22px;
  display: block;
  background: #000000;
  object-fit: cover;
}

/* Native <dialog> Layer Popup Modal for Full-Size Architecture Diagram */
.arch-modal {
  margin: auto;
  width: min(94vw, 1340px);
  max-height: 92vh;
  background: #0B1120;
  color: #FFFFFF;
  border: 1px solid #334155;
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.75);
  overflow: hidden;
}

.arch-modal::backdrop {
  background: rgba(2, 6, 23, 0.82);
  backdrop-filter: blur(6px);
}

.arch-modal-inner {
  display: flex;
  flex-direction: column;
  max-height: 92vh;
}

.arch-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid #1E293B;
  background: #0F172A;
}

.arch-modal-header h3 {
  font-size: 20px;
  font-weight: 800;
  color: #F8FAFC;
  margin: 0;
}

.arch-modal-close {
  background: rgba(255, 255, 255, 0.08);
  color: #F8FAFC;
  border: 1px solid #475569;
  border-radius: var(--radius-full);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
  line-height: 1;
  padding: 0;
}

.arch-modal-close:hover {
  background: #EF4444;
  border-color: #EF4444;
  color: #FFFFFF;
  transform: rotate(90deg);
}

.arch-modal-body {
  padding: 16px 24px;
  overflow: auto;
  background: #091020;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.arch-modal-img {
  width: 100%;
  max-width: 1260px;
  max-height: calc(92vh - 145px);
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-sm);
}

.arch-modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 28px;
  background: #0F172A;
  border-top: 1px solid #1E293B;
  font-size: 13px;
  color: #94A3B8;
  flex-wrap: wrap;
}

.arch-modal-hint {
  color: #38BDF8;
  font-weight: 600;
}

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

.contact-section {
  padding: 80px 0 100px;
  background: radial-gradient(circle at 50% 90%, rgba(37, 99, 235, 0.05) 0%, transparent 60%);
}

.contact-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  box-shadow: var(--shadow-lg);
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.contact-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-title {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 800;
  letter-spacing: -0.6px;
  line-height: 1.35;
  color: var(--color-text-main);
  margin: 12px 0 16px;
}

.contact-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 680px;
  word-break: keep-all;
}

.contact-methods {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 500px;
  margin: 0 auto 32px;
}

.contact-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #F8FAFC;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: left;
  transition: all 0.2s ease;
}

.contact-box:hover {
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: var(--shadow-sm);
}

.box-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: #EFF6FF;
  border: 1px solid #DBEAFE;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.box-icon-wrap.globe {
  background: #F0F9FF;
  border-color: #E0F2FE;
}

.box-info {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.box-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.box-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-main);
}

.email-link {
  color: var(--color-primary);
}

.email-link:hover {
  text-decoration: underline;
}

.box-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-copy {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  color: var(--color-text-body);
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-copy:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.contact-direct-cta {
  margin-top: 36px;
}

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

.footer {
  background: #F8FAFC;
  border-top: 1px solid var(--color-border);
  padding: 64px 0 44px;
}

.footer-container {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.footer-top-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 520px;
}

.footer-logo {
  height: 48px;
  width: auto;
  display: block;
  transition: transform 0.2s ease;
}

.footer-logo:hover {
  transform: scale(1.02);
}

.footer-tagline {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-body);
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.footer-nav-highlight {
  color: var(--color-primary) !important;
  font-weight: 700 !important;
}

.footer-bottom-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 14.5px;
  color: var(--color-text-body);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.meta-label {
  font-weight: 700;
  color: var(--color-text-main);
}

.meta-divider {
  color: #CBD5E1;
}

.footer-meta a {
  color: var(--color-primary);
  font-weight: 600;
}

.footer-meta a:hover {
  text-decoration: underline;
}

.copyright {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #0F172A;
  color: #FFFFFF;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  z-index: 2000;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */

@media (max-width: 992px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  .contact-card {
    padding: 36px 24px;
  }
}

@media (max-width: 768px) {
  .showcase-feature-item {
    flex-direction: column;
    align-items: stretch;
    padding: 20px 18px;
    gap: 16px;
  }
  .feature-item-body {
    width: 100%;
  }
  .feature-video-box {
    width: 100%;
    max-width: 170px;
    margin: 8px auto 0;
  }
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: #FFFFFF;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 20px;
    box-shadow: var(--shadow-lg);
    display: none;
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .nav-cta {
    width: 100%;
  }
  .hero-section {
    padding: 50px 0 40px;
  }
  .hero-title {
    font-size: clamp(25px, 6.8vw, 34px);
    line-height: 1.34;
    letter-spacing: -0.8px;
    word-break: keep-all;
    overflow-wrap: break-word;
  }
  .hero-subtitle {
    font-size: 15px;
    line-height: 1.62;
    margin-bottom: 28px;
    word-break: keep-all;
  }
  .hero-badge {
    font-size: 12px;
    padding: 5px 12px;
    text-align: center;
    word-break: keep-all;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin: 0 auto 36px;
    gap: 12px;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
    font-size: 15px;
  }
  .section-title {
    font-size: clamp(22px, 5.5vw, 28px);
    line-height: 1.35;
    word-break: keep-all;
  }
  .section-subtitle {
    font-size: 15px;
    line-height: 1.6;
    word-break: keep-all;
  }
  .service-card {
    padding: 24px 20px;
  }
  .card-title {
    font-size: 20px;
    line-height: 1.38;
    word-break: keep-all;
  }
  .showcase-title {
    font-size: clamp(23px, 5.8vw, 30px);
    line-height: 1.35;
    word-break: keep-all;
  }
  .showcase-card {
    padding: 24px 20px;
  }
  .contact-title {
    font-size: clamp(22px, 5.5vw, 28px);
    line-height: 1.35;
    word-break: keep-all;
  }
  .contact-desc {
    font-size: 15px;
    line-height: 1.6;
    word-break: keep-all;
  }
  .contact-methods {
    grid-template-columns: 1fr;
  }
  .contact-box {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .box-actions {
    width: 100%;
  }
  .btn-copy {
    width: 100%;
    text-align: center;
  }
  .footer-top-row {
    flex-direction: column;
    gap: 24px;
  }
  .footer-nav {
    gap: 14px 20px;
  }
  .footer-bottom-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .footer-meta {
    gap: 8px 12px;
    font-size: 13.5px;
  }

  /* Mobile Architecture Modal Responsiveness */
  .arch-modal {
    width: 95vw;
    max-height: 94vh;
    border-radius: var(--radius-md);
  }
  .arch-modal-header {
    padding: 14px 16px;
  }
  .arch-modal-header h3 {
    font-size: 15px;
  }
  .arch-modal-body {
    padding: 10px 8px;
    overflow-x: auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    display: flex;
    justify-content: flex-start;
  }
  .arch-modal-img {
    width: auto;
    min-width: 680px;
    max-width: none;
    max-height: 70vh;
  }
  .arch-modal-footer {
    padding: 10px 14px;
    font-size: 11.5px;
  }

  /* Mobile Feature Video Modal Responsiveness */
  .video-modal {
    width: min(94vw, 420px);
    max-height: 94vh;
    max-height: 94dvh;
    border-radius: 22px;
  }
  .video-modal-header {
    padding: 12px 16px;
    min-height: 64px;
  }
  .video-modal-header h3 {
    font-size: 14px;
  }
  .video-modal-body {
    padding: 14px 10px 18px;
    min-height: min(72vh, 72dvh, 520px);
  }
  .phone-bezel-modal {
    width: min(78vw, 255px);
    max-width: 100%;
    aspect-ratio: 9 / 19.5;
    padding: 7px;
    border-radius: 26px;
  }
  .modal-video-player {
    width: 100%;
    height: 100%;
    aspect-ratio: 9 / 19.5;
    border-radius: 20px;
    object-fit: cover;
  }
}