:root {
  --bg-dark: #0A0D18;
  --bg-card: rgba(22, 28, 48, 0.7);
  --bg-card-hover: rgba(30, 39, 66, 0.85);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-highlight: rgba(99, 102, 241, 0.4);
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent-purple: #8B5CF6;
  --accent-indigo: #6366F1;
  --accent-cyan: #38BDF8;
  --accent-gold: #FBBF24;
  --accent-pink: #F43F5E;
  --font-sans: 'Plus Jakarta Sans', 'Noto Sans TC', 'Noto Sans Thai', system-ui, -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg-dark: #F8FAFC;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.3);
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Ambient Glow Orbs */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.25;
  animation: floatOrb 20s infinite alternate ease-in-out;
}

.orb-1 {
  top: -10%;
  left: 20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #6366F1 0%, transparent 70%);
}

.orb-2 {
  top: 40%;
  right: -5%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, #8B5CF6 0%, transparent 70%);
  animation-delay: -7s;
}

.orb-3 {
  bottom: -10%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #38BDF8 0%, transparent 70%);
  animation-delay: -14s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
  100% { transform: translate(-40px, 80px) scale(0.95); }
}

/* Layout Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(10, 13, 24, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

[data-theme="light"] .navbar {
  background: rgba(248, 250, 252, 0.85);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-svg {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-top: -3px;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-toggle-lang, .btn-toggle-theme {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  transition: var(--transition);
}

.btn-toggle-lang:hover, .btn-toggle-theme:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
}

/* Language Dropdown Menu */
.lang-dropdown-wrapper {
  position: relative;
  display: inline-block;
}

.lang-dropdown-wrapper .btn-toggle-lang {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  user-select: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.lang-dropdown-wrapper.active .btn-toggle-lang {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.25);
}

.lang-icon {
  font-size: 0.95rem;
  line-height: 1;
}

.lang-current-label {
  font-size: 0.88rem;
  font-weight: 600;
}

.lang-arrow {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--text-muted);
  flex-shrink: 0;
}

.lang-dropdown-wrapper.active .lang-arrow {
  transform: rotate(180deg);
  color: var(--accent-cyan);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 185px;
  background: rgba(18, 24, 43, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(99, 102, 241, 0.15);
  padding: 6px;
  display: none !important;
  flex-direction: column;
  gap: 4px;
  z-index: 9999;
  transform-origin: top right;
  box-sizing: border-box;
}

[data-theme="light"] .lang-dropdown-menu {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.lang-dropdown-wrapper.active .lang-dropdown-menu,
.lang-dropdown-menu.is-open {
  display: flex !important;
  animation: menuAppear 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes menuAppear {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-6px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.lang-option {
  display: flex !important;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  background: transparent !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  box-sizing: border-box;
}

.lang-option:hover {
  background: rgba(99, 102, 241, 0.15);
  color: var(--text-primary);
}

.lang-option.selected {
  background: rgba(99, 102, 241, 0.22);
  color: var(--accent-cyan);
  font-weight: 600;
}

.lang-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  min-width: 32px;
  text-align: center;
}

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

.lang-option.selected .lang-badge {
  background: rgba(56, 189, 248, 0.2);
  color: var(--accent-cyan);
}

.lang-name {
  flex-grow: 1;
}

.lang-check {
  font-size: 0.85rem;
  opacity: 0;
  color: var(--accent-cyan);
  font-weight: bold;
}

.lang-option.selected .lang-check {
  opacity: 1;
}

.btn-nav-download {
  background: linear-gradient(135deg, var(--accent-indigo), var(--accent-purple));
  color: #FFF;
  text-decoration: none;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
  transition: var(--transition);
}

.btn-nav-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.6rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #A78BFA 0%, #38BDF8 50%, #FBBF24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #6366F1, #8B5CF6);
  color: #FFFFFF;
  text-decoration: none;
  padding: 15px 28px;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 700;
  box-shadow: 0 8px 28px rgba(99, 102, 241, 0.4);
  transition: var(--transition);
}

.btn-hero-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(99, 102, 241, 0.6);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  text-decoration: none;
  padding: 15px 26px;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-hero-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.hero-badges {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Phone Mockup Frame */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 300px;
  height: 620px;
  background: #111422;
  border-radius: 44px;
  padding: 12px;
  border: 4px solid #2B3352;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), 0 0 40px rgba(99, 102, 241, 0.25);
  position: relative;
  overflow: hidden;
  animation: floatPhone 6s ease-in-out infinite alternate;
}

@keyframes floatPhone {
  0% { transform: translateY(0); }
  100% { transform: translateY(-16px); }
}

.phone-notch {
  width: 100px;
  height: 18px;
  background: #000;
  border-radius: 10px;
  margin: 0 auto 8px;
}

.phone-screen-container {
  width: 100%;
  height: calc(100% - 26px);
  border-radius: 32px;
  overflow: hidden;
  background: #0D111F;
}

.phone-screen-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Floating Glass Cards */
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(18, 24, 43, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  z-index: 10;
  animation: floatCard 5s ease-in-out infinite alternate;
}

.float-icon {
  font-size: 1.5rem;
}

.float-info {
  display: flex;
  flex-direction: column;
}

.float-info strong {
  font-size: 0.9rem;
  color: var(--text-primary);
}

.float-info span {
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.float-1 {
  top: 15%;
  left: -40px;
  animation-delay: 0s;
}

.float-2 {
  bottom: 25%;
  left: -30px;
  animation-delay: -2s;
}

.float-3 {
  top: 35%;
  right: -35px;
  animation-delay: -4s;
}

@keyframes floatCard {
  0% { transform: translateY(0); }
  100% { transform: translateY(-10px); }
}

/* Section Common Styles */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  margin-bottom: 60px;
}

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

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-purple);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(99, 102, 241, 0.15);
}

.feat-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 22px;
}

.icon-purple { background: rgba(139, 92, 246, 0.15); border: 1px solid rgba(139, 92, 246, 0.3); }
.icon-blue { background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.3); }
.icon-gold { background: rgba(251, 191, 36, 0.15); border: 1px solid rgba(251, 191, 36, 0.3); }
.icon-cyan { background: rgba(56, 189, 248, 0.15); border: 1px solid rgba(56, 189, 248, 0.3); }
.icon-green { background: rgba(34, 197, 94, 0.15); border: 1px solid rgba(34, 197, 94, 0.3); }
.icon-pink { background: rgba(244, 63, 94, 0.15); border: 1px solid rgba(244, 63, 94, 0.3); }

.feat-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feat-card-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Presets Grid */
.presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.preset-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
}

.preset-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
}

.preset-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.preset-emoji {
  font-size: 2rem;
}

.preset-titles h4 {
  font-size: 1.15rem;
  font-weight: 700;
}

.preset-tag {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.preset-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Screenshots Gallery */
.screenshots-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 28px;
}

.screen-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.screen-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-highlight);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.screen-img-wrapper {
  width: 100%;
  height: 480px;
  background: #090C16;
  overflow: hidden;
}

.screen-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.screen-card:hover .screen-img-wrapper img {
  transform: scale(1.03);
}

.screen-caption {
  padding: 18px 20px;
}

.screen-caption strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.screen-caption p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Download Section */
.download-box {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(139, 92, 246, 0.12));
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-xl);
  padding: 70px 36px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.download-icon {
  margin-bottom: 24px;
}

.download-logo-svg {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.download-title {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 14px;
}

.download-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.btn-dl-main {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, #6366F1, #8B5CF6);
  color: #FFF;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 28px rgba(99, 102, 241, 0.45);
  transition: var(--transition);
}

.btn-dl-main:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(99, 102, 241, 0.65);
}

.btn-dl-alt {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.btn-dl-alt:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-3px);
}

.dl-btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.dl-btn-small {
  font-size: 0.72rem;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dl-btn-large {
  font-size: 1.05rem;
  font-weight: 700;
}

.dl-meta {
  display: flex;
  justify-content: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Privacy Policy Section */
.privacy-container {
  max-width: 920px;
}

.privacy-content-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 48px;
}

.privacy-highlight {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 36px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--accent-cyan);
}

.policy-block {
  margin-bottom: 36px;
}

.policy-block:last-child {
  margin-bottom: 0;
}

.policy-block h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.policy-block p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.policy-block ul {
  padding-left: 24px;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
}

.policy-block li {
  margin-bottom: 8px;
}

.policy-block code {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88rem;
  color: var(--accent-gold);
}

.privacy-link {
  color: var(--accent-cyan);
  text-decoration: underline;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  background: rgba(10, 13, 24, 0.9);
  padding: 48px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 800;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

/* Responsive Breakpoints */
@media (max-width: 968px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group, .hero-badges {
    justify-content: center;
  }

  .floating-card {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .hero-title {
    font-size: 2.8rem;
  }

  .privacy-content-card {
    padding: 28px 20px;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 12px 14px;
  }
  .nav-controls {
    gap: 8px;
  }
  .brand-sub {
    display: none;
  }
  .lang-dropdown-wrapper .btn-toggle-lang {
    padding: 7px 10px;
    gap: 5px;
  }
  .btn-nav-download {
    padding: 7px 12px;
    font-size: 0.82rem;
  }
}

/* PIN Protection Modal */
.pin-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(7, 9, 19, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  padding: 20px;
  animation: fadeIn 0.25s ease-out;
}

.pin-modal-card {
  position: relative;
  background: rgba(18, 24, 43, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.8), 0 0 40px rgba(99, 102, 241, 0.25);
  border-radius: 28px;
  padding: 36px 30px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: cardAppear 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.pin-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.pin-modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  transform: rotate(90deg);
}

.pin-modal-icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 12px rgba(99, 102, 241, 0.4));
}

.pin-modal-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.pin-modal-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 22px;
}

.pin-input-group {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.pin-modal-input {
  width: 180px;
  padding: 12px 16px;
  background: rgba(10, 14, 28, 0.85);
  border: 2px solid rgba(99, 102, 241, 0.4);
  border-radius: 16px;
  color: #FFFFFF;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: 12px;
  text-align: center;
  outline: none;
  transition: all 0.25s ease;
}

.pin-modal-input:focus {
  border-color: #818CF8;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.45);
  background: rgba(15, 20, 38, 0.95);
}

.pin-modal-input.shake {
  animation: shake 0.45s ease-in-out;
  border-color: #EF4444;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.5);
}

.pin-modal-error {
  color: #F87171;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.pin-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pin-modal-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
  color: #FFFFFF;
  border: none;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.pin-modal-submit:hover {
  background: linear-gradient(135deg, #4F46E5 0%, #4338CA 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.5);
}

.pin-modal-cancel {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
}

.pin-modal-cancel:hover {
  color: #FFFFFF;
}

@keyframes cardAppear {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-10px); }
  40%, 80% { transform: translateX(10px); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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