/* ============================================
   MyCloudSociety — Design System
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Primary Palette — Red */
  --primary-50: #FFEBEE;
  --primary-100: #FFCDD2;
  --primary-200: #EF9A9A;
  --primary-300: #E57373;
  --primary-400: #EF5350;
  --primary-500: #e53935;
  --primary-600: #D32F2F;
  --primary-700: #C62828;
  --primary-800: #B71C1C;
  --primary-900: #7F0000;

  /* Accent — Dark Red */
  --accent-400: #EF5350;
  --accent-500: #D32F2F;
  --accent-600: #C62828;

  /* Success / Info / Warning / Danger */
  --success: #10B981;
  --info: #3B82F6;
  --warning: #F59E0B;
  --danger: #EF4444;

  /* Neutrals */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Surfaces */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F9FAFB;
  --bg-dark: #0F172A;
  --bg-dark-secondary: #1E293B;
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --text-on-dark: #F1F5F9;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;
  --fs-7xl: 4.5rem;
  --lh-tight: 1.15;
  --lh-snug: 1.3;
  --lh-normal: 1.6;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 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 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px rgba(229,57,53,0.15);
  --shadow-glow-lg: 0 0 80px rgba(229,57,53,0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --nav-height: 72px;
  --nav-logo-height: 40px;
  --footer-logo-height: 56px;
  --footer-logo-safe-left: 16px;
  --footer-logo-safe-right: 22px;
  --footer-logo-safe-top: 4px;
  --footer-logo-safe-bottom: 10px;
  --footer-logo-nudge-y: -6px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: var(--font-body);
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-body);
  font-size: var(--fs-base);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: var(--lh-tight);
  color: var(--text-primary);
  font-weight: 700;
}

h1 { font-size: var(--fs-6xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }

p {
  color: var(--text-secondary);
  line-height: var(--lh-normal);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-800));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}

.section-sm {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-3xl);
}

.section-header .badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--primary-50);
  color: var(--primary-600);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
  border: 1px solid var(--primary-100);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn-red {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  color: white;
  box-shadow: 0 4px 14px rgba(229,57,53,0.35);
}

.btn-red:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  box-shadow: 0 6px 20px rgba(229,57,53,0.45);
}

/* Legacy support or explicit primary */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  color: white;
  box-shadow: 0 4px 14px rgba(229,57,53,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(229,57,53,0.45);
}

.btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1.5px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
  color: var(--primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--primary-600);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  background: var(--primary-50);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--fs-lg);
  border-radius: var(--radius-xl);
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- Glassmorphism Card --- */
.glass-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

/* Standard card */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-100);
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: all var(--transition-base);
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  border-bottom: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 0;
  flex-shrink: 0;
}

.logo-img {
  width: auto;
  height: var(--nav-logo-height);
  display: block;
  max-width: none;
}

.desktop-only {
  display: flex !important;
}

@media (max-width: 992px) {
  .desktop-only {
    display: none !important;
  }
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: var(--fs-lg);
}

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

.nav-links > a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-links > a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-500);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav-links > a:hover,
.nav-links > a.active {
  color: var(--primary-600);
}

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

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

.nav-cta .btn {
  padding: 0.6rem 1.4rem;
  font-size: var(--fs-sm);
}

.nav-cta.mobile {
  display: none;
}

.nav-overlay {
  display: none;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Footer --- */
.footer {
  background: var(--bg-dark);
  color: var(--text-on-dark);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  color: var(--gray-400);
  font-size: var(--fs-sm);
  margin-top: var(--space-md);
  line-height: var(--lh-normal);
  max-width: 360px;
}

.footer-ownership {
  color: white;
  font-weight: 600;
}

.footer-company-name {
  color: white;
  font-weight: 600;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  margin-top: var(--space-md);
}

.footer-meta span {
  color: var(--gray-400);
  font-size: var(--fs-xs);
}

.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: white;
  display: block;
  line-height: 0;
  width: calc((var(--footer-logo-height) * 4.3608247423) + var(--footer-logo-safe-left) + var(--footer-logo-safe-right));
  height: calc(var(--footer-logo-height) + var(--footer-logo-safe-top) + var(--footer-logo-safe-bottom));
  max-width: 100%;
  overflow: hidden;
  position: relative;
}

.logo-footer-img {
  position: absolute;
  left: calc(var(--footer-logo-safe-left) - (var(--footer-logo-height) * 0.3917525773));
  top: calc(var(--footer-logo-safe-top) - (var(--footer-logo-height) * 1.8762886598) + var(--footer-logo-nudge-y));
  width: calc(var(--footer-logo-height) * 5.1546391753);
  height: calc(var(--footer-logo-height) * 5.1546391753);
  display: block;
  max-width: none;
}

.footer-brand .footer-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: 800;
}

.footer h4 {
  color: white;
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.footer-links a {
  display: block;
  color: var(--gray-400);
  font-size: var(--fs-sm);
  padding: 0.3rem 0;
  transition: color var(--transition-fast);
}

.footer-links span,
.footer-links address {
  display: block;
  color: var(--gray-400);
  font-size: var(--fs-sm);
  padding: 0.3rem 0;
  font-style: normal;
  line-height: 1.7;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid var(--bg-dark-secondary);
  padding-top: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom p {
  color: var(--gray-500);
  font-size: var(--fs-xs);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-bottom-links a {
  color: var(--gray-500);
  font-size: var(--fs-xs);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--gray-300);
}

/* --- Animation Classes --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.slide-left {
  transform: translateX(-30px);
}

.animate-on-scroll.slide-left.visible {
  transform: translateX(0);
}

.animate-on-scroll.slide-right {
  transform: translateX(30px);
}

.animate-on-scroll.slide-right.visible {
  transform: translateX(0);
}

.animate-on-scroll.scale-in {
  transform: scale(0.95);
}

.animate-on-scroll.scale-in.visible {
  transform: scale(1);
}

/* Stagger delay utilities */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* Keyframes */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(229,57,53,0.2); }
  50% { box-shadow: 0 0 40px rgba(229,57,53,0.4); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-xl); }
.mt-3 { margin-top: var(--space-2xl); }
.mb-1 { margin-top: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }
.mb-3 { margin-bottom: var(--space-2xl); }

/* --- Responsive --- */
@media (max-width: 992px) {
  h1 { font-size: var(--fs-5xl); }
  h2 { font-size: var(--fs-3xl); }

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

  /* Mobile Nav */
  /* Sidebar unified container */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    padding: 80px 0 20px;
    box-shadow: var(--shadow-2xl);
    transition: right var(--transition-slow);
    z-index: 1000;
    overflow-y: auto;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links > a {
    font-size: var(--fs-lg);
    padding: 0.75rem 2rem;
    width: 100%;
  }

  .nav-cta.mobile {
    display: flex;
    flex-direction: column;
    margin-top: auto; /* Push to bottom of sidebar links */
    padding: 20px;
    width: 100%;
    border-top: 1px solid var(--gray-100);
    background: var(--bg-primary);
  }

  /* Ensure nav-cta inside nav-links doesn't have fixed positioning */
  .nav-cta.mobile .btn {
    width: 100%;
    color: white;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    z-index: 998;
  }

  .nav-overlay.open {
    display: block;
  }
}

@media (max-width: 768px) {
  h1 { font-size: var(--fs-4xl); }
  h2 { font-size: var(--fs-3xl); }

  :root {
    --nav-logo-height: 34px;
    --footer-logo-height: 48px;
    --footer-logo-safe-left: 13px;
    --footer-logo-safe-right: 18px;
    --footer-logo-safe-top: 3px;
    --footer-logo-safe-bottom: 8px;
    --footer-logo-nudge-y: -6px;
  }
  
  .section {
    padding: var(--space-4xl) 0;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  h1 { font-size: var(--fs-3xl); }
  h2 { font-size: var(--fs-2xl); }
  
  .section {
    padding: var(--space-3xl) 0;
  }
}

/* Mobile Sticky Button Removed */

.trust-line {
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  font-weight: 500;
  padding: 1.5rem 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--gray-100);
}

.legal-content {
  padding: var(--space-4xl) 0;
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 {
  margin-bottom: var(--space-xl);
}

.legal-content h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.legal-content p {
  margin-bottom: var(--space-md);
}

.legal-content ul {
  margin-bottom: var(--space-md);
  list-style: disc;
  padding-left: 1.5rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.platform-disclaimer {
  background: var(--bg-primary);
  padding: 2rem 0;
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  border-top: 1px solid var(--gray-100);
}

.platform-disclaimer .container {
  max-width: 960px;
}

.platform-disclaimer strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.business-identity-card {
  margin-top: var(--space-3xl);
  padding: var(--space-2xl);
  background: linear-gradient(135deg, var(--gray-50), #fff5f5);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.business-identity-label {
  color: var(--primary-600);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.business-identity-card h3 {
  margin: var(--space-sm) auto var(--space-md);
  max-width: 760px;
}

.business-identity-card p {
  max-width: 760px;
  margin: 0 auto;
}

.business-identity-meta {
  margin-top: var(--space-md) !important;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}