/* ==========================================================================
   Sheets2GCal Sync Website CSS Stylesheet
   ========================================================================== */

/* ─── Variables ─── */
:root {
  --primary: #2f80ed;
  --primary-rgb: 47, 128, 237;
  --secondary: #6c5ce7;
  --dark: #0f172a;
  --dark-light: #1e293b;
  --light: #f8fafc;
  --gray: #64748b;
  --border: #e2e8f0;
  --white: #ffffff;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--dark);
  font-weight: 700;
  line-height: 1.25;
}

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

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

/* ─── Layout & Utilities ─── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-right: auto;
  margin-left: auto;
  padding-right: 1.5rem;
  padding-left: 1.5rem;
}

.section {
  padding: 6rem 0;
}

.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-gray { color: var(--gray); }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3.5rem; }

/* ─── Header Navigation ─── */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  padding: 1rem 0;
}

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

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray);
}

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

.nav-btn {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(47, 128, 237, 0.2);
}

.nav-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 15px rgba(47, 128, 237, 0.35);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(47, 128, 237, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(47, 128, 237, 0.35);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--dark);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background-color: rgba(47, 128, 237, 0.03);
}

/* ─── Hero Section ─── */
.hero {
  padding: 8rem 0 6rem;
  background: radial-gradient(circle at 80% 20%, rgba(108, 92, 231, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 10% 80%, rgba(47, 128, 237, 0.06) 0%, transparent 50%);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--gray);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.hero-img-wrap {
  position: relative;
}

.hero-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  background-color: rgba(47, 128, 237, 0.08);
  border-radius: 50px;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ─── Feature Grid ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(47, 128, 237, 0.2);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background-color: rgba(47, 128, 237, 0.1);
  color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-card.purple .feature-icon {
  background-color: rgba(108, 92, 231, 0.1);
  color: var(--secondary);
}

.feature-card.green .feature-icon {
  background-color: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-desc {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ─── How It Works ─── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  position: relative;
}

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

.step-num {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(47, 128, 237, 0.2);
  margin-bottom: 1.5rem;
}

.step-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.step-desc {
  color: var(--gray);
  font-size: 0.92rem;
  padding: 0 1rem;
}

/* ─── Value Props / Privacy banner ─── */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.trust-check-list {
  list-style: none;
}

.trust-check-item {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.trust-check-item svg {
  color: #10b981;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

/* ─── Legal Pages ─── */
.legal-layout {
  padding: 5rem 0;
}

.legal-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 4rem;
  box-shadow: var(--shadow-md);
}

.legal-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
}

.legal-meta {
  color: var(--gray);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
}

.legal-content p {
  color: #334155;
  margin-bottom: 1.25rem;
}

.legal-content ul {
  list-style-position: inside;
  margin-bottom: 1.25rem;
  color: #334155;
  padding-left: 1rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

.alert-box {
  background-color: rgba(47, 128, 237, 0.05);
  border-left: 4px solid var(--primary);
  padding: 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 2rem 0;
}

.alert-box p {
  margin-bottom: 0;
  font-weight: 500;
  color: var(--dark-light);
}

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

.faq-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-q {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-q:hover {
  background-color: rgba(47, 128, 237, 0.02);
}

.faq-a {
  padding: 0 1.5rem 1.25rem;
  color: var(--gray);
  font-size: 0.95rem;
  display: none;
}

.faq-card.open .faq-a {
  display: block;
}

.faq-card.open .faq-icon {
  transform: rotate(45deg);
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--primary);
  transition: var(--transition);
}

/* ─── Contact Form ─── */
.contact-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
}

.contact-info-card {
  background-color: var(--dark);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-card h3 {
  color: var(--white);
  font-size: 1.75rem;
}

.contact-details {
  list-style: none;
  margin-top: 2rem;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.form-group {
  margin-bottom: 1.5rem;
}

.form-input-label {
  display: block;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--dark-light);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--primary);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(47, 128, 237, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

/* ─── Footer ─── */
.footer {
  background-color: var(--dark);
  color: #94a3b8;
  padding: 5rem 0 3rem;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand h4 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-links h5 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .hero-grid, .split-section {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-img-wrap {
    order: -1;
    max-width: 600px;
    margin: 0 auto;
  }
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  .header {
    padding: 0.75rem 0;
  }
  .nav {
    display: none; /* simple hidden nav for mobile */
  }
  .features-grid, .steps-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .legal-card {
    padding: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}