/**
 * Engage Beta Marketing Website
 * Main Stylesheet
 */

/* ========================================
   ROOT VARIABLES
   ======================================== */
:root {
  /* Colors */
  --primary-blue: #2d80ff;
  --dark-blue: #1a4d99;
  --accent-green: #10b981;
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --medium-gray: #e5e7eb;
  --dark-gray: #333333;
  --text-muted: #6b7280;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows — stronger in light mode so cards lift off the page */
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.08);
  --shadow-md: 0 4px 10px -1px rgb(0 0 0 / 0.13), 0 2px 4px -1px rgb(0 0 0 / 0.07);
  --shadow-lg: 0 10px 20px -3px rgb(0 0 0 / 0.13), 0 4px 8px -2px rgb(0 0 0 / 0.07);
  --shadow-xl: 0 20px 32px -5px rgb(0 0 0 / 0.14), 0 10px 16px -3px rgb(0 0 0 / 0.08);
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 70px;

  /* Theme */
  --bg: #0f1117;
  --bg-alt: #1a1d27;
  --bg-card: #1e2235;
  --bg-nav: #000000;
  --color-text: #f1f5f9;
  --color-muted: #94a3b8;
  --color-border: #2d3748;
  --color-nav-link: #e2e8f0;
  --color-input-bg: #1a1d27;
  --color-input-text: #f1f5f9;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-muted);
  font-size: 1.125rem;
}

.text-large {
  font-size: 1.25rem;
}

.text-small {
  font-size: 0.875rem;
}

/* ========================================
   LAYOUT UTILITIES
   ======================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

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

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--bg-nav);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

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

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

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

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
  margin-left: auto;
}

.navbar-menu a {
  color: var(--color-nav-link);
  font-weight: 500;
  transition: color 0.3s ease;
}

.navbar-menu a:hover {
  color: var(--primary-blue);
}

.navbar-cta {
  margin-left: var(--spacing-md);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-xs);
}

/* Beta availability badge */
.beta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--accent-green);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 99px;
  text-decoration: none;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-left: var(--spacing-md);
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.beta-badge:hover {
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.45);
}

.beta-badge-dot {
  width: 7px;
  height: 7px;
  background: #ffffff;
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.6); }
}

/* Navbar end: theme toggle + mobile hamburger */
.navbar-end {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: var(--spacing-md);
  flex-shrink: 0;
}

/* Always dark — show dark logo on black navbar */
.logo-light { display: none; }
.logo-dark { display: block; }

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: var(--white);
  border-color: var(--primary-blue);
}

.btn-primary:hover {
  background-color: var(--dark-blue);
  border-color: var(--dark-blue);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-blue);
  border-color: var(--primary-blue);
}

.btn-secondary:hover {
  background-color: var(--primary-blue);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1a1d27 0%, #0f1117 100%);
  padding: var(--spacing-2xl) 0;
  margin-top: var(--header-height);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-text h1 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.hero-text .tagline {
  font-size: 1.25rem;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: auto;
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background-color: var(--bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(45, 128, 255, 0.35);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  background-color: var(--primary-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 2rem;
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.feature-card p {
  color: var(--color-muted);
  font-size: 1rem;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn-primary {
  background-color: var(--white);
  color: var(--primary-blue);
  border-color: var(--white);
}

.cta-section .btn-primary:hover {
  background-color: var(--light-gray);
  border-color: var(--light-gray);
  color: var(--primary-blue);
}

/* ========================================
   PRICING CARDS
   ======================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.pricing-card {
  background-color: var(--bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--primary-blue);
  transform: scale(1.05);
}

.pricing-card:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-xl);
}

.pricing-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--accent-green);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-lg);
  font-weight: 700;
  font-size: 0.875rem;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: var(--spacing-xs);
}

.pricing-price small {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-description {
  color: var(--color-muted);
  margin-bottom: var(--spacing-lg);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

.pricing-features li {
  padding: var(--spacing-xs) 0;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pricing-features li::before {
  content: "✓";
  color: var(--accent-green);
  font-weight: 700;
  font-size: 1.25rem;
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-text);
}

.form-label.required::after {
  content: " *";
  color: #ef4444;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-family);
  color: var(--color-input-text);
  background-color: var(--color-input-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
}

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

.form-checkbox {
  margin-right: var(--spacing-xs);
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-muted);
}

.form-help {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--spacing-xs);
}

/* ========================================
   SCREENSHOT GALLERY
   ======================================== */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.screenshot-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.screenshot-item:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

.screenshot-caption {
  padding: var(--spacing-md);
  background-color: var(--bg-card);
  font-weight: 600;
  text-align: center;
}

/* ========================================
   CONTENT SLIDER
   ======================================== */
.section-slider {
  padding: var(--spacing-2xl) 0;
  background-color: var(--bg-alt);
}

.slider-tabs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.slider-tab {
  padding: 0.55rem 1.2rem;
  border: 2px solid var(--color-border);
  border-radius: 99px;
  background: var(--bg-card);
  color: var(--color-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-family);
  white-space: nowrap;
}

.slider-tab:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

.slider-tab.active {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: #ffffff;
}

.slider-viewport {
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.slider-track {
  display: flex;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.slide {
  min-width: 100%;
  padding: var(--spacing-xl) var(--spacing-2xl);
  background-color: var(--bg);
  box-sizing: border-box;
}

.slide-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
}

.slide-header h2 {
  margin-bottom: 0.4rem;
}

.slide-subtitle {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin: 0;
}

.slide-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.slide-cards-grid .feature-card {
  text-align: left;
}

.slide-outcome {
  margin-top: 0;
}

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: var(--spacing-xl);
}

.slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--bg-card);
  color: var(--color-text);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.slider-btn:hover:not(:disabled) {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  background: var(--bg-alt);
}

.slider-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.slider-dots {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
  padding: 0;
}

.slider-dot.active {
  background: var(--primary-blue);
  transform: scale(1.35);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

/* ========================================
   ALERTS & BADGES
   ======================================== */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.alert-success {
  background-color: #ecfdf5;
  border: 1px solid #10b981;
  color: #065f46;
}

.alert-info {
  background-color: #eff6ff;
  border: 1px solid #2d80ff;
  color: #1e40af;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-lg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background-color: var(--primary-blue);
  color: var(--white);
}

.badge-success {
  background-color: var(--accent-green);
  color: var(--white);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Loading Spinner */
.spinner {
  border: 3px solid var(--light-gray);
  border-top: 3px solid var(--primary-blue);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

.text-primary {
  color: var(--primary-blue) !important;
}

.text-success {
  color: var(--accent-green) !important;
}

.text-muted {
  color: var(--color-muted) !important;
}

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

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