/* 
   SavvyDivvy Web Design System
   Matches AppColors from savvydivvy (Light Liquid Glassmorphism Theme)
   Base: #F8FCFD | Surface: #FFFFFF | Accent Cyan: #06B6D4 | Dark Text: #0F172A
*/

:root {
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Brand Palette from AppColors */
  --primary: #06B6D4;
  --primary-dark: #0891B2;
  --primary-light: #67E8F9;
  --secondary: #0E7490;
  
  /* Liquid Light Backgrounds */
  --bg-primary: #F8FCFD;
  --bg-top: #E0F7FA;
  --bg-mid: #F0F9FF;
  --bg-card: rgba(255, 255, 255, 0.78);
  --bg-card-hover: rgba(255, 255, 255, 0.94);
  
  /* Glassmorphism Specs for Light Mode */
  --glass-border: rgba(255, 255, 255, 0.9);
  --glass-border-cyan: rgba(6, 182, 212, 0.22);
  --glass-border-hover: rgba(6, 182, 212, 0.45);
  --glass-glow: 0 10px 30px rgba(6, 182, 212, 0.12);
  
  /* Text & Accents */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --border: #D6EEF2;
  
  /* Status Colors */
  --accent-green: #10B981;
  --accent-red: #EF4444;
  --accent-amber: #F59E0B;
  
  /* Radii & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  
  --shadow-sm: 0 4px 16px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(6, 182, 212, 0.1);
  --shadow-lg: 0 18px 40px -10px rgba(15, 23, 42, 0.1);
  --shadow-glow: 0 0 50px rgba(6, 182, 212, 0.18);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 0%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(103, 232, 249, 0.18) 0%, transparent 45%),
    linear-gradient(180deg, #E0F7FA 0%, #F0F9FF 35%, #F8FCFD 70%, #F8FCFD 100%);
  background-attachment: fixed;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(214, 238, 242, 0.8);
  box-shadow: 0 2px 14px rgba(6, 182, 212, 0.05);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.9);
}

.brand-gradient {
  background: linear-gradient(135deg, #0891B2, #06B6D4);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
}

.nav-link:hover, .nav-link:focus-visible {
  color: var(--primary-dark);
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 9999px;
  background: linear-gradient(135deg, #06B6D4, #0891B2);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.35);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(6, 182, 212, 0.5);
  color: #FFFFFF;
}

/* Mobile Menu Button */
.menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 9999px;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #0891B2;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #06B6D4;
  box-shadow: 0 0 10px #06B6D4;
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
  color: #0F172A;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 34px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.btn-store:hover {
  background: #FFFFFF;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-store svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

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

.btn-store-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-store-title {
  font-size: 1rem;
  font-weight: 700;
  color: #0F172A;
}

.store-badge-row {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

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

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, rgba(103, 232, 249, 0.15) 55%, transparent 70%);
  filter: blur(50px);
  z-index: 1;
  pointer-events: none;
}

.phone-frame {
  position: relative;
  z-index: 2;
  width: 280px;
  border-radius: 42px;
  padding: 10px;
  background: #FFFFFF;
  border: 3.5px solid rgba(214, 238, 242, 0.9);
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.12), 0 0 35px rgba(6, 182, 212, 0.2);
  transition: transform 0.4s ease;
}

.phone-frame:hover {
  transform: scale(1.02);
}

.phone-screen {
  width: 100%;
  height: auto;
  border-radius: 32px;
  display: block;
}

/* Sections Global */
.section {
  padding: 90px 0;
  position: relative;
}

.section-alt {
  background: rgba(240, 250, 252, 0.65);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
  color: #0F172A;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--primary-dark);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Screenshots Showcase */
.screenshots-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.screenshot-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

.screenshot-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.screenshot-card img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
  display: block;
  margin-bottom: 16px;
}

.screenshot-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: #0F172A;
}

.screenshot-card span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* How It Works Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.step-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  position: relative;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

.step-num {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #06B6D4, #0891B2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #0F172A;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* FAQ Details/Summary Accordion */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

details.faq-item {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: var(--transition);
  cursor: pointer;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

details.faq-item[open] {
  background: #FFFFFF;
  border-color: rgba(6, 182, 212, 0.4);
}

summary.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  list-style: none;
  user-select: none;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

summary.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 400;
  transition: transform 0.25s ease;
}

details[open] summary.faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* Support & Contact Section */
.support-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 40px;
  align-items: flex-start;
}

.support-info-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

.support-info-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #0F172A;
}

.support-info-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.contact-channel-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.channel-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 1.25rem;
}

.channel-text strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.channel-text a, .channel-text span {
  color: var(--text-primary);
  font-size: 0.95rem;
  text-decoration: none;
  font-weight: 600;
}

.channel-text a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.support-sla-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 8px 16px;
  border-radius: 9999px;
  color: #059669;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Contact Form with Modern Validation (:user-invalid / :user-valid) */
.support-form-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.9);
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

/* Modern Web Guidance: :user-invalid and :user-valid */
.form-input:user-invalid,
.form-textarea:user-invalid {
  border-color: #ef4444;
  background-color: #fef2f2;
}

.form-input:user-valid:not(:placeholder-shown),
.form-textarea:user-valid:not(:placeholder-shown) {
  border-color: #10b981;
}

.form-error-msg {
  display: none;
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 6px;
  font-weight: 500;
}

.form-input:user-invalid + .form-error-msg,
.form-textarea:user-invalid + .form-error-msg {
  display: block;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #06B6D4, #0891B2);
  color: #FFFFFF;
  border: none;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.35);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(6, 182, 212, 0.5);
}

.form-status {
  margin-top: 14px;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
  text-align: center;
}

.form-status.success {
  display: block;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

/* Footer */
.footer {
  background: #F0FAFC;
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 14px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(214, 238, 242, 0.9);
  padding-top: 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-bottom-links a:hover {
  color: var(--text-primary);
}

/* Policy Page Layouts */
.policy-container {
  max-width: 860px;
  margin: 120px auto 60px;
  padding: 0 24px;
}

.policy-card {
  background: rgba(255, 255, 255, 0.88);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.policy-card h1 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: #0F172A;
}

.policy-card .meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
  display: block;
}

.policy-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.policy-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #0F172A;
  margin: 18px 0 8px;
}

.policy-body p, .policy-body ul {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.policy-body ul {
  padding-left: 24px;
}

.policy-body li {
  margin-bottom: 8px;
}

.policy-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-dark);
  text-decoration: none;
  font-weight: 600;
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.policy-back-btn:hover {
  text-decoration: underline;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

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

  .store-badge-row {
    justify-content: center;
  }

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

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

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

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 32px 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .menu-btn {
    display: block;
  }

  .screenshots-gallery {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }

  .policy-card {
    padding: 24px;
  }
}