/* ==========================================================================
   MangaReaderNeko - Master Design System
   Modern, Sleek, Glassmorphic Dark Mode for iOS App Showcase
   ========================================================================== */

:root {
  /* Color Palette - Aligned with MangaReaderApp Swift ColorTokens */
  --bg-dark: #090d16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(255, 255, 255, 0.16);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  /* Brand Gradients */
  --cyan-start: #38bdf8;
  --cyan-end: #0ea5e9;
  --pink-start: #ff7eb3;
  --pink-end: #ff3d8d;
  
  --gradient-cyan: linear-gradient(135deg, var(--cyan-start), var(--cyan-end));
  --gradient-pink: linear-gradient(135deg, var(--pink-start), var(--pink-end));
  --gradient-hybrid: linear-gradient(135deg, var(--cyan-start) 0%, var(--pink-start) 100%);
  
  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Radii & Transitions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

img {
  max-width: 100%;
  display: block;
}

/* ==========================================================================
   Ambient Glow Effects (Background Aura)
   ========================================================================== */

.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.glow-top-left {
  top: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.25) 0%, transparent 70%);
}

.glow-top-right {
  top: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 61, 141, 0.2) 0%, transparent 70%);
}

.glow-center {
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, rgba(255, 126, 179, 0.08) 50%, transparent 70%);
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */

.text-gradient-cyan {
  background: var(--gradient-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-pink {
  background: var(--gradient-pink);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

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

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 0;
  background: rgba(9, 13, 22, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
}

.logo-text {
  color: var(--text-main);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

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

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-full);
  color: var(--text-main) !important;
  font-weight: 600;
  font-size: 0.9rem;
}

.btn-nav-cta:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

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

.hero {
  padding: 9rem 0 5rem;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  margin-bottom: 1.75rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-start);
  box-shadow: 0 0 10px var(--cyan-start);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.badge-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--cyan-start);
  letter-spacing: 0.3px;
}

.hero h1 {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -1.5px;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.18rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.btn-app-store {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1rem 2rem;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-lg);
  color: #fff;
  width: fit-content;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 255, 255, 0.05);
  transition: var(--transition-smooth);
}

.btn-app-store:hover {
  background: #111;
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.8), 0 0 30px rgba(56, 189, 248, 0.2);
}

.apple-icon {
  width: 36px;
  height: 36px;
}

.app-store-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.app-store-label {
  font-size: 0.78rem;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.app-store-title {
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.1;
}

.hero-specs {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-item strong {
  color: var(--text-main);
}

.spec-item span {
  color: var(--text-dim);
  font-size: 0.8rem;
}

.spec-divider {
  width: 1px;
  height: 28px;
  background: var(--border-subtle);
}

/* ==========================================================================
   Hero Visual & Interactive Phone Mockup
   ========================================================================== */

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.device-showcase {
  position: relative;
  width: 320px;
  perspective: 1000px;
}

.device-frame {
  position: relative;
  width: 300px;
  height: 610px;
  margin: 0 auto;
  background: #161e2e;
  border-radius: 46px;
  padding: 10px;
  border: 4px solid rgba(255, 255, 255, 0.15);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.9),
    0 0 40px rgba(56, 189, 248, 0.25),
    inset 0 0 15px rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transition: transform 0.5s ease;
}

.device-frame:hover {
  transform: translateY(-8px) scale(1.02);
}

.device-notch {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 24px;
  background: #000;
  border-radius: 20px;
  z-index: 10;
}

.device-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 36px;
  overflow: hidden;
  background: #000;
}

.screen-preview {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.screen-preview.active {
  opacity: 1;
}

/* Floating Badges */
.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.1rem;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-highlight);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  z-index: 20;
  animation: floatAnim 4s ease-in-out infinite alternate;
}

.badge-icon {
  font-size: 1.4rem;
}

.badge-content {
  display: flex;
  flex-direction: column;
}

.badge-rating {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.2;
}

.badge-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.badge-top-right {
  top: 15%;
  right: -25px;
  animation-delay: 0s;
}

.badge-bottom-left {
  bottom: 18%;
  left: -35px;
  animation-delay: 1.5s;
}

.badge-center-right {
  bottom: 40%;
  right: -30px;
  animation-delay: 2.5s;
}

@keyframes floatAnim {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-8px); }
}

/* ==========================================================================
   Stats Bar Section
   ========================================================================== */

.stats-section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.4);
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Features Grid Section
   ========================================================================== */

.features {
  padding: 7rem 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4.5rem;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.feature-icon.icon-cyan {
  background: rgba(56, 189, 248, 0.12);
  color: var(--cyan-start);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.feature-icon.icon-pink {
  background: rgba(255, 126, 179, 0.12);
  color: var(--pink-start);
  border: 1px solid rgba(255, 126, 179, 0.25);
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.3px;
}

.feature-card p {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta-section {
  padding: 3rem 0 6rem;
}

.cta-box {
  background: radial-gradient(circle at top right, rgba(255, 61, 141, 0.15) 0%, rgba(14, 165, 233, 0.12) 50%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  padding: 4.5rem 2rem;
  text-align: center;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.8);
}

.cta-content {
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1.25rem;
}

.cta-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.cta-btn {
  margin: 0 auto;
}

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

footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(9, 13, 22, 0.95);
  padding: 4.5rem 0 2.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand .brand-tagline {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 360px;
  line-height: 1.6;
}

.footer-nav-group {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-group-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.footer-nav-group a {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.footer-nav-group a:hover {
  color: var(--cyan-start);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-disclaimer {
  font-size: 0.78rem;
  line-height: 1.5;
}

/* ==========================================================================
   Subpages Style (About, Privacy, Terms, Contact)
   ========================================================================== */

.page-header {
  padding: 10rem 0 4rem;
  text-align: center;
  background: rgba(15, 23, 42, 0.4);
  border-bottom: 1px solid var(--border-subtle);
}

.page-header h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.75rem;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1.15rem;
}

.page-content {
  padding: 4rem 1.5rem 6rem;
  max-width: 820px;
  margin: 0 auto;
}

.page-content section {
  margin-bottom: 2.75rem;
}

.page-content h2 {
  font-size: 1.65rem;
  margin-bottom: 1rem;
  color: var(--text-main);
  letter-spacing: -0.3px;
}

.page-content p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.page-content ul {
  list-style: disc;
  padding-left: 1.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.page-content li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

/* ==========================================================================
   Contact Section & Modern Form Design System
   ========================================================================== */

.contact-section {
  padding: 4rem 0 7rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.55fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
}

.contact-info-card h3 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 0.75rem;
}

.contact-subtext {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 2.25rem;
}

.contact-method-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.contact-method-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method-icon.icon-cyan {
  background: rgba(56, 189, 248, 0.12);
  color: var(--cyan-start);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.contact-method-icon.icon-pink {
  background: rgba(255, 126, 179, 0.12);
  color: var(--pink-start);
  border: 1px solid rgba(255, 126, 179, 0.25);
}

.contact-method-details {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.method-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  font-weight: 600;
}

.method-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition-smooth);
}

a.method-value:hover {
  color: var(--cyan-start);
  text-decoration: underline;
}

.contact-tip-box {
  background: rgba(56, 189, 248, 0.06);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.tip-title {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--cyan-start);
  margin-bottom: 0.4rem;
}

.tip-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Contact Form Card */
.contact-form-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.form-group label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.2px;
}

.form-control {
  width: 100%;
  background: rgba(9, 13, 22, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  color: #fff;
  padding: 0.95rem 1.25rem;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-smooth);
}

.form-control::placeholder {
  color: #475569;
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  background: rgba(9, 13, 22, 0.95);
  border-color: var(--cyan-start);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
  line-height: 1.6;
}

.btn-primary.btn-submit {
  width: 100%;
  padding: 1.1rem 2rem;
  background: var(--gradient-cyan);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  box-shadow: 0 10px 25px -5px rgba(14, 165, 233, 0.5);
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: 0.5rem;
}

.btn-primary.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(14, 165, 233, 0.7);
  filter: brightness(1.1);
}

.btn-primary.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  margin-top: 1.5rem;
  padding: 1.1rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  animation: fadeIn 0.3s ease;
}

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

.form-status.success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
}

.form-status.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3.5rem;
  }

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

  .hero-actions {
    align-items: center;
  }

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

  .stats-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(9, 13, 22, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-highlight);
    transform: translateY(-150%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .nav-links.active {
    transform: translateY(0);
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .floating-badge {
    display: none;
  }

  .device-frame {
    width: 260px;
    height: 530px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-form-card {
    padding: 2rem 1.5rem;
  }
}