/* ============================================
   INNOVA - SMS Messaging Platform
   Global Stylesheet
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
  /* Brand Colors */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-primary-lighter: #60a5fa;
  --color-accent: #06b6d4;
  --color-accent-dark: #0891b2;
  --color-gradient-start: #2563eb;
  --color-gradient-end: #06b6d4;

  /* Neutral Colors */
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-heading: #0f172a;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-border: #e2e8f0;
  --color-white: #ffffff;

  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* 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;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);

  /* Layout */
  --container-max-width: 1200px;
  --navbar-height: 70px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-heading);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p { color: var(--color-text-secondary); }

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

a:hover { color: var(--color-primary-dark); }

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

ul, ol { list-style: none; }

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

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

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--dark {
  background-color: var(--color-bg-dark);
  color: var(--color-white);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.8);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

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

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

.section--dark .section-header .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.section-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-lg);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.section--dark .section-badge {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-accent);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--transition-base);
}

.navbar--scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-heading);
}

.navbar-brand:hover { color: var(--color-heading); }

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
}

.footer-logo .brand-logo-img {
  width: 32px;
  height: 32px;
}

.auth-card-logo .brand-logo-img {
  width: 40px;
  height: 40px;
}

.brand-text {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.navbar-nav a {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--font-size-base);
  position: relative;
  padding: var(--space-sm) 0;
}

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

.navbar-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

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

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  flex-direction: column;
  gap: 5px;
}

.navbar-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: all var(--transition-base);
}

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

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: var(--font-family);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.5;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  color: var(--color-white);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.btn--lg {
  padding: var(--space-lg) var(--space-3xl);
  font-size: var(--font-size-lg);
}

.btn--sm {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
}

/* Hero Section */
.hero {
  position: relative;
  padding: calc(var(--navbar-height) + var(--space-5xl)) 0 var(--space-5xl);
  background: linear-gradient(135deg, #f0f7ff 0%, #e0f2fe 50%, #f0fdfa 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.hero-content { max-width: 560px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-lg);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-xl);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero h1 {
  font-size: var(--font-size-6xl);
  line-height: 1.1;
  margin-bottom: var(--space-xl);
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.hero-stat .stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-heading);
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Hero Visual - RCS Phone Mockup */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  width: 320px;
  height: 620px;
  background: #1a1a2e;
  border-radius: 40px;
  padding: 12px;
  box-shadow: var(--shadow-2xl);
  position: relative;
}

.phone-mockup::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 6px;
  background: #2a2a3e;
  border-radius: 3px;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: #f8fafc;
  border-radius: 30px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-header {
  padding: 40px 16px 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.phone-header .avatar {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.phone-header .info { flex: 1; }
.phone-header .info .name { font-size: 0.9rem; font-weight: 600; }
.phone-header .info .status { font-size: 0.7rem; opacity: 0.8; }

.phone-header .verified-badge {
  width: 18px;
  height: 18px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
}

.phone-body {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
}

.rcs-message {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.8rem;
  line-height: 1.5;
  animation: messageIn 0.5s ease forwards;
  opacity: 0;
}

.rcs-message--received {
  background: white;
  color: var(--color-text);
  border-bottom-left-radius: 4px;
  box-shadow: var(--shadow-sm);
  align-self: flex-start;
}

.rcs-message--sent {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.rcs-message--rich {
  background: white;
  box-shadow: var(--shadow-md);
  border-radius: 16px;
  overflow: hidden;
  max-width: 85%;
  align-self: flex-start;
}

.rcs-message--rich .rich-image {
  width: 100%;
  height: 100px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
}

.rcs-message--rich .rich-content {
  padding: 12px;
}

.rcs-message--rich .rich-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.rcs-message--rich .rich-desc {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.rcs-message--rich .rich-buttons {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rcs-message--rich .rich-btn {
  padding: 6px;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
  border-radius: 8px;
}

.rcs-suggestions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding: 0 16px 12px;
}

.rcs-suggestion {
  padding: 6px 14px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  color: var(--color-primary);
  font-weight: 500;
}

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

.rcs-message:nth-child(1) { animation-delay: 0.2s; }
.rcs-message:nth-child(2) { animation-delay: 0.5s; }
.rcs-message:nth-child(3) { animation-delay: 0.8s; }
.rcs-message:nth-child(4) { animation-delay: 1.1s; }

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: var(--font-size-base);
  line-height: 1.6;
}

/* Stats Section */
.stats-section {
  background: linear-gradient(135deg, var(--color-bg-dark), #1a2744);
  padding: var(--space-4xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item .stat-value {
  font-size: var(--font-size-6xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary-lighter));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.stat-item .stat-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-base);
}

/* Use Cases */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.use-case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.use-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.use-case-image {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
  position: relative;
  overflow: hidden;
}

.use-case-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.1), rgba(0,0,0,0.3));
}

.use-case-image span { z-index: 1; position: relative; }

.use-case-card:nth-child(1) .use-case-image { background: linear-gradient(135deg, #667eea, #764ba2); }
.use-case-card:nth-child(2) .use-case-image { background: linear-gradient(135deg, #f093fb, #f5576c); }
.use-case-card:nth-child(3) .use-case-image { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.use-case-card:nth-child(4) .use-case-image { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.use-case-card:nth-child(5) .use-case-image { background: linear-gradient(135deg, #fa709a, #fee140); }
.use-case-card:nth-child(6) .use-case-image { background: linear-gradient(135deg, #30cfd0, #330867); }

.use-case-content {
  padding: var(--space-xl);
}

.use-case-content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.use-case-content p {
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* How It Works */
.how-it-works {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.how-it-works::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0.2;
}

.step-card {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  background: var(--color-white);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
  transition: all var(--transition-base);
}

.step-card:hover .step-number {
  background: var(--color-primary);
  color: white;
  transform: scale(1.05);
}

.step-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.step-card p {
  font-size: var(--font-size-sm);
}

/* Comparison Table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-white);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-lg) var(--space-xl);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background: var(--color-bg-alt);
  font-weight: 700;
  color: var(--color-heading);
  font-size: var(--font-size-base);
}

.comparison-table th:first-child { width: 25%; }
.comparison-table th:not(:first-child) { text-align: center; width: 25%; }

.comparison-table td:not(:first-child) { text-align: center; }

.comparison-table .feature-name {
  font-weight: 600;
  color: var(--color-heading);
}

.comparison-table .check { color: var(--color-success); font-size: 1.25rem; }
.comparison-table .cross { color: var(--color-danger); font-size: 1.25rem; }
.comparison-table .partial { color: var(--color-warning); font-size: 1.25rem; }

.comparison-table tbody tr:hover {
  background: var(--color-bg-alt);
}

.comparison-table .highlight-col {
  background: rgba(37, 99, 235, 0.03);
}

/* CTA Section */
.cta-section {
  position: relative;
  padding: var(--space-5xl) 0;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section .container { position: relative; z-index: 1; }

.cta-section h2 {
  color: white;
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Security Section */
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.security-card {
  text-align: center;
  padding: var(--space-2xl);
}

.security-card .security-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.security-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.security-card p {
  font-size: var(--font-size-sm);
}

/* Partners / Logos */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-lg);
  align-items: center;
}

.partner-logo {
  height: 60px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.partner-logo:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.testimonial-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.testimonial-quote {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  position: relative;
}

.testimonial-quote::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: -8px;
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.15;
  font-family: Georgia, serif;
  line-height: 1;
}

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

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
  font-size: var(--font-size-sm);
}

.testimonial-info .name {
  font-weight: 600;
  color: var(--color-heading);
  font-size: var(--font-size-sm);
}

.testimonial-info .role {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-white);
  border: none;
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-heading);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-family);
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-bg-alt);
}

.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
  color: var(--color-primary);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 var(--space-xl) var(--space-lg);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* Contact Form */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

.contact-info h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-lg);
}

.contact-info p {
  margin-bottom: var(--space-2xl);
  font-size: var(--font-size-lg);
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.contact-detail .icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-detail .label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.contact-detail .value {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-heading);
}

.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-sm);
}

.form-group label .required { color: var(--color-danger); }

.form-control {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder { color: var(--color-text-muted); }

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-message {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
  display: none;
}

.form-message--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
  display: block;
}

.form-message--error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
  display: block;
}

/* About Page */
.about-hero {
  padding: calc(var(--navbar-height) + var(--space-4xl)) 0 var(--space-4xl);
  background: linear-gradient(135deg, #f0f7ff, #e0f2fe);
  text-align: center;
}

.about-hero h1 { font-size: var(--font-size-5xl); margin-bottom: var(--space-lg); }

.about-mission {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-mission h2 { margin-bottom: var(--space-lg); }

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.value-card {
  text-align: center;
  padding: var(--space-2xl);
}

.value-card .value-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-2xl);
  padding-left: var(--space-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px;
  top: 4px;
  width: 14px;
  height: 14px;
  background: var(--color-white);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
}

.timeline-item .timeline-year {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.timeline-item h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.timeline-item p { font-size: var(--font-size-sm); }

/* Footer */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
  color: white;
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: white;
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.footer-col ul li {
  margin-bottom: var(--space-sm);
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

.footer-bottom a:hover { color: var(--color-accent); }

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

/* Page Header */
.page-header {
  padding: calc(var(--navbar-height) + var(--space-4xl)) 0 var(--space-3xl);
  text-align: center;
  background: linear-gradient(135deg, #f0f7ff, #e0f2fe);
}

.page-header h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-md);
}

.page-header p {
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-secondary);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-lg);
}

.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .separator { color: var(--color-text-muted); }
.breadcrumb .current { color: var(--color-heading); font-weight: 600; }

/* Split Section (image + text) */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.split-section--reverse .split-text { order: 2; }
.split-section--reverse .split-visual { order: 1; }

.split-text h2 { margin-bottom: var(--space-lg); }
.split-text > p { margin-bottom: var(--space-xl); font-size: var(--font-size-lg); }

.split-feature-list { margin-bottom: var(--space-xl); }

.split-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.split-feature-list li .check-icon {
  width: 24px;
  height: 24px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.split-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  font-size: 5rem;
  box-shadow: var(--shadow-xl);
}

.split-visual .visual-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-2xl);
  width: 90%;
  max-width: 400px;
  color: var(--color-text);
  font-size: 1rem;
}

/* Code Block */
.code-block {
  background: #0f172a;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: var(--space-lg);
}

.code-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot--red { background: #ff5f57; }
.code-dot--yellow { background: #ffbd2e; }
.code-dot--green { background: #28ca42; }

.code-title {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
  margin-left: var(--space-sm);
}

.code-block pre {
  padding: var(--space-lg);
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: #e2e8f0;
}

.code-block .keyword { color: #c084fc; }
.code-block .string { color: #86efac; }
.code-block .comment { color: #64748b; }
.code-block .function { color: #93c5fd; }

/* Scroll Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .features-grid,
  .use-cases-grid,
  .testimonials-grid,
  .about-values,
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .how-it-works::before { display: none; }

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

  .partners-grid { grid-template-columns: repeat(3, 1fr); }

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

  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-6xl: 2.5rem;
    --font-size-4xl: 1.75rem;
  }

  .navbar-nav {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--navbar-height));
    background: white;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-xl);
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .navbar-nav.active {
    transform: translateX(0);
  }

  .navbar-nav a {
    width: 100%;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
  }

  .navbar-nav a.active::after { display: none; }

  .navbar-toggle { display: flex; }

  .navbar-actions { display: none; }

  .navbar-nav.active ~ .navbar-actions,
  .navbar-actions.mobile-show {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-top: var(--space-lg);
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-visual {
    order: -1;
    margin-bottom: var(--space-xl);
  }

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

  .hero-actions { justify-content: center; }

  .hero-stats { justify-content: center; flex-wrap: wrap; gap: var(--space-xl); }

  .features-grid,
  .use-cases-grid,
  .testimonials-grid,
  .about-values,
  .security-grid,
  .stats-grid,
  .partners-grid {
    grid-template-columns: 1fr;
  }

  .how-it-works { grid-template-columns: 1fr; }

  .split-section,
  .about-mission,
  .contact-section,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .legal-toc {
    position: static;
    order: 2;
  }

  .split-section--reverse .split-text { order: 1; }
  .split-section--reverse .split-visual { order: 2; }

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

  .footer-brand { grid-column: 1 / -1; }

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

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

  .phone-mockup {
    width: 280px;
    height: 540px;
  }

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

@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
  }

  .btn { width: 100%; }

  .hero-actions,
  .cta-actions { flex-direction: column; }
}

/* Legal Pages */
.legal-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.legal-toc {
  position: sticky;
  top: calc(var(--navbar-height) + var(--space-xl));
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.legal-toc h4 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.legal-toc ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.legal-toc ul li a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1.4;
}

.legal-toc ul li a:hover,
.legal-toc ul li a.active {
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}

.legal-content {
  max-width: 800px;
}

.legal-meta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-lg);
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-2xl);
}

.legal-content h2 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
  scroll-margin-top: calc(var(--navbar-height) + var(--space-xl));
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content h3 {
  font-size: var(--font-size-lg);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-heading);
}

.legal-content p {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

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

.legal-content ul li {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.legal-content ul li strong {
  color: var(--color-heading);
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-callout {
  background: rgba(37, 99, 235, 0.05);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xl) 0;
}

.legal-callout p {
  margin-bottom: 0;
  color: var(--color-text);
}

.legal-contact-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-2xl);
}

.legal-contact-box h3 {
  margin-top: 0;
}

.legal-contact-box p {
  margin-bottom: var(--space-sm);
}

.legal-contact-box a {
  font-weight: 600;
}

/* ============================================
   Auth Pages (Login / Register)
   ============================================ */

.auth-page {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-md);
  background: linear-gradient(135deg, #f0f4ff 0%, #e0f2fe 50%, #f0fdfa 100%);
  position: relative;
  overflow: hidden;
}

.auth-page::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.auth-page::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.auth-card {
  width: 100%;
  max-width: 460px;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 10px 60px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  padding: var(--space-3xl);
  position: relative;
  z-index: 1;
}

/* Card header */
.auth-card-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.auth-card-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  text-decoration: none;
}

.auth-card-logo .brand-icon {
  width: 36px;
  height: 36px;
  font-size: 1.1rem;
}

.auth-card-logo .brand-text {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-xs);
}

.auth-card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Form fields */
.auth-field {
  margin-bottom: var(--space-md);
}

.auth-field label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-xs);
}

.auth-input-group {
  position: relative;
}

.auth-input-group .auth-input {
  padding-right: 44px;
}

.auth-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}

.auth-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.auth-input::placeholder {
  color: var(--color-text-muted);
}

.auth-input.error {
  border-color: var(--color-danger);
}

.auth-input.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.auth-field-error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-top: var(--space-xs);
  display: none;
}

.auth-field-error.visible {
  display: block;
}

/* Password toggle */
.auth-toggle-pwd {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  padding: var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.auth-toggle-pwd:hover {
  color: var(--color-primary);
}

/* Two-column field row */
.auth-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Checkboxes */
.auth-check {
  margin-bottom: var(--space-sm);
}

.auth-check label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  line-height: 1.6;
  font-weight: 400;
}

.auth-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
  margin-top: 3px;
  flex-shrink: 0;
}

.auth-check a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Submit button */
.auth-submit {
  width: 100%;
  padding: var(--space-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: var(--font-family);
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
  margin-top: var(--space-md);
}

.auth-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.auth-submit:active {
  transform: translateY(0);
}

.auth-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.auth-submit .spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: var(--space-sm);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Auth message (success/error) */
.auth-message {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
  display: none;
  align-items: center;
  gap: var(--space-sm);
}

.auth-message.visible {
  display: flex;
}

.auth-message--success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.auth-message--error {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.auth-message .msg-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Switch link at bottom */
.auth-switch-link {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-lg);
}

.auth-switch-link a {
  color: var(--color-primary);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.auth-switch-link a:hover {
  text-decoration: underline;
}

/* Helper note */
.auth-note {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
}

/* Navbar auth buttons */
.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid transparent;
}

.btn--ghost:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary-dark);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .auth-field-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .auth-page {
    padding: var(--space-xl) var(--space-sm);
  }

  .auth-card {
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
  }

  .auth-card-header {
    margin-bottom: var(--space-xl);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--space-sm) var(--space-lg);
  z-index: 1001;
  border-radius: 0 0 var(--radius-md) 0;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
  color: white;
}