/* ============================================================
   NoteDock Design System — styles.css
   Dark Mode + Glassmorphism | Plus Jakarta Sans
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-primary: #0B0D17;
  --bg-surface: #141829;
  --bg-surface-2: #1A1F35;

  /* Borders */
  --border-default: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 130, 246, 0.3);

  /* Brand Colors */
  --color-primary: #3B82F6;
  --color-primary-hover: #60A5FA;
  --color-cta: #10B981;
  --color-cta-hover: #34D399;

  /* Text */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Gradients */
  --gradient-accent: linear-gradient(135deg, #3B82F6, #8B5CF6);
  --gradient-hero: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15), transparent);

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-blur: blur(20px);

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Timing */
  --ease-micro: 150ms ease-out;
  --ease-content: 500ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-page: 300ms ease-in-out;

  /* Z-index scale */
  --z-base: 1;
  --z-sticky: 10;
  --z-nav: 20;
  --z-overlay: 30;
  --z-modal: 50;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

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

ul,
ol {
  list-style: none;
}

/* ── Typography ────────────────────────────────────────────── */
.text-hero {
  font-weight: 800;
  font-size: 3.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-section {
  font-weight: 700;
  font-size: 2.25rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.text-subtitle {
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.4;
}

.text-body {
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
}

.text-small {
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.6;
}

.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

/* ── Layout Utilities ──────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section {
  padding: var(--space-9) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-header p {
  color: var(--text-secondary);
  margin-top: var(--space-4);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-nav);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: var(--space-3) var(--space-5);
  transition: background var(--ease-micro), border-color var(--ease-micro);
}

.nav:hover {
  border-color: var(--border-hover);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--ease-micro);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-cta);
  color: #fff !important;
  padding: var(--space-2) var(--space-5);
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: background var(--ease-micro), transform var(--ease-micro), box-shadow var(--ease-micro);
  cursor: pointer;
}

.nav-cta:hover {
  background: var(--color-cta-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
  color: #fff !important;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: transform var(--ease-micro), opacity var(--ease-micro);
  border-radius: 2px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: background var(--ease-micro), transform var(--ease-micro), box-shadow var(--ease-micro);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-cta);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-cta-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.3);
  color: #fff;
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
  color: var(--text-primary);
}

.btn-lg {
  padding: var(--space-4) var(--space-7);
  font-size: 1.125rem;
  border-radius: 14px;
}

/* ── Glass Card ────────────────────────────────────────────── */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: var(--space-6);
  transition: border-color var(--ease-micro), transform var(--ease-micro), box-shadow var(--ease-micro);
}

.glass-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ── Feature Card ──────────────────────────────────────────── */
.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-accent);
  border-radius: 12px;
  margin-bottom: var(--space-4);
  flex-shrink: 0;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: #fff;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-weight: 600;
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ── Pricing Card ──────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  padding: var(--space-7);
  position: relative;
  transition: border-color var(--ease-micro), transform var(--ease-micro);
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: transparent;
  background:
    linear-gradient(var(--bg-surface), var(--bg-surface)) padding-box,
    var(--gradient-accent) border-box;
  border: 2px solid transparent;
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.8125rem;
  padding: var(--space-1) var(--space-4);
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-card h3 {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-weight: 800;
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: var(--space-1);
}

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

.pricing-sub {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-5);
}

.pricing-features {
  margin-bottom: var(--space-6);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.pricing-features li svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-cta);
  fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  padding: var(--space-7) 0;
  border-top: 1px solid var(--border-default);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: var(--space-5);
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.8125rem;
  line-height: 1.4;
}

/* ── Legal Pages (Privacy, Terms) ──────────────────────────── */
.legal-page {
  padding-top: calc(var(--nav-height) + var(--space-8));
  padding-bottom: var(--space-9);
}

.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-content h1 {
  font-weight: 800;
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
}

.legal-content .legal-date {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-7);
}

.legal-content h2 {
  font-weight: 700;
  font-size: 1.375rem;
  margin-top: var(--space-7);
  margin-bottom: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-default);
}

.legal-content h2:first-of-type {
  margin-top: var(--space-5);
  border-top: none;
  padding-top: 0;
}

.legal-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  max-width: 65ch;
}

.legal-content ul {
  margin-bottom: var(--space-4);
  padding-left: var(--space-5);
}

.legal-content ul li {
  color: var(--text-secondary);
  padding: var(--space-1) 0;
  list-style: disc;
}

.legal-content a {
  color: var(--color-primary);
}

/* ── Support Page ──────────────────────────────────────────── */
.support-hero {
  text-align: center;
  padding-top: calc(var(--nav-height) + var(--space-8));
  padding-bottom: var(--space-7);
}

.support-hero h1 {
  font-weight: 800;
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
}

.support-hero p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-default);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color var(--ease-micro);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5);
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  transition: color var(--ease-micro);
}

.faq-question:hover {
  color: var(--color-primary-hover);
}

.faq-question svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 2;
  transition: transform var(--ease-micro);
  flex-shrink: 0;
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease-in-out, padding 300ms ease-in-out;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Contact Card */
.contact-card {
  max-width: 500px;
  margin: var(--space-8) auto 0;
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  padding: var(--space-7);
}

.contact-card h2 {
  font-weight: 700;
  font-size: 1.375rem;
  margin-bottom: var(--space-3);
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
}

/* System Requirements */
.sys-req {
  max-width: 500px;
  margin: var(--space-7) auto 0;
  text-align: center;
}

.sys-req h2 {
  font-weight: 700;
  font-size: 1.375rem;
  margin-bottom: var(--space-4);
}

.sys-req-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sys-req-list span {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ── CTA Section ───────────────────────────────────────────── */
.cta-section {
  text-align: center;
  padding: var(--space-10) 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  font-weight: 800;
  font-size: 2.5rem;
  margin-bottom: var(--space-5);
  position: relative;
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: var(--space-6);
  position: relative;
}

/* ── Scroll Reveal Animation ───────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--ease-content), transform var(--ease-content);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Reduced Motion Preference ─────────────────────────────── */
@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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ── Responsive ────────────────────────────────────────────── */

/* Tablets & Small Laptops */
@media (max-width: 1024px) {
  .text-hero {
    font-size: 2.75rem;
  }

  .text-section {
    font-size: 2rem;
  }

  .section {
    padding: var(--space-8) 0;
  }
}

/* Tablets Portrait */
@media (max-width: 768px) {
  .text-hero {
    font-size: 2.25rem;
  }

  .text-section {
    font-size: 1.75rem;
  }

  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: 0 0 16px 16px;
    padding: var(--space-4);
    gap: var(--space-3);
    margin-top: var(--space-2);
  }

  .nav-toggle {
    display: block;
  }

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

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

  .legal-content h1,
  .support-hero h1,
  .cta-section h2 {
    font-size: 2rem;
  }

  .pricing-price {
    font-size: 2rem;
  }
}

/* Mobile */
@media (max-width: 375px) {
  .text-hero {
    font-size: 1.875rem;
  }

  .text-section {
    font-size: 1.5rem;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .btn-lg {
    padding: var(--space-3) var(--space-5);
    font-size: 1rem;
  }
}