/* Wspr — Design System
   Dark theme inspired by the Wspr macOS app interface */

:root {
  --bg: #000000;
  --bg-elevated: #1c1c1e;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);
  --text: #f5f5f7;
  --text-secondary: #86868b;
  --text-tertiary: #6e6e73;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --green: #30d158;
  --orange: #ff9f0a;
  --border: rgba(255,255,255,0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 1080px;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Segoe UI', Roboto, sans-serif;
}

/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 24px;
  transition: background 0.3s, backdrop-filter 0.3s;
}
.nav.scrolled {
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero {
  padding: 160px 24px 80px;
  text-align: center;
}
.hero-icon {
  margin: 0 auto 24px;
  width: 80px;
  height: 80px;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 0%, #a0a0a5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero .tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-weight: 400;
}
.hero .description {
  font-size: 1.05rem;
  color: var(--text-tertiary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.6;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--text);
  color: #000;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 980px;
  transition: transform 0.2s, opacity 0.2s;
  text-decoration: none;
}
.hero-cta:hover {
  transform: scale(1.03);
  opacity: 0.92;
  color: #000;
}
.hero-cta svg { flex-shrink: 0; }
.hero-meta {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-top: 12px;
}
.hero-cta-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.hero-cta-secondary:hover {
  color: var(--text);
  background: var(--bg-card-hover);
  border-color: rgba(255,255,255,0.2);
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-screenshot {
  max-width: 700px;
  margin: 60px auto 0;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 80px rgba(0,113,227,0.15), 0 0 0 1px rgba(255,255,255,0.05);
}

/* Sections */
section {
  padding: 100px 24px;
}
.section-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
}
.section-center {
  text-align: center;
}
.section-center .section-desc {
  margin: 0 auto;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: background 0.3s, border-color 0.3s;
}
.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,255,255,0.12);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.4rem;
}
.feature-icon.blue { background: rgba(0,113,227,0.15); color: var(--accent); }
.feature-icon.green { background: rgba(48,209,88,0.15); color: var(--green); }
.feature-icon.orange { background: rgba(255,159,10,0.15); color: var(--orange); }
.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Split Section (image + text side by side) */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}
.split-text { max-width: 480px; }
.split-text .section-label { margin-bottom: 12px; }
.split-text .section-title { margin-bottom: 16px; }
.split-text .section-desc { margin-bottom: 24px; }
.split-text ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.split-text li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.split-text li svg {
  flex-shrink: 0;
  margin-top: 3px;
}
.split-image {
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.06);
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 760px;
  margin: 56px auto 0;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
}
.pricing-card.pro {
  border-color: var(--orange);
  background: rgba(255,159,10,0.04);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--orange);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 980px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pricing-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-price {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-note {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}
.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.pricing-features li svg { flex-shrink: 0; }
.check { color: var(--green); }
.limit { color: var(--text-tertiary); }

/* CTA Banner */
.cta-section {
  text-align: center;
  padding: 100px 24px;
}
.cta-section .section-title {
  margin-bottom: 12px;
}
.cta-section .section-desc {
  margin: 0 auto 32px;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-tertiary); font-size: 0.85rem; }
.footer-links a:hover { color: var(--text); }
.footer-copy { color: var(--text-tertiary); font-size: 0.85rem; }

/* Page styles (privacy, support) */
.page-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 140px 24px 80px;
}
.page-container h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.page-updated {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  margin-bottom: 36px;
}
.page-container h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--text);
}
.page-container p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.65;
}
.page-container ul {
  margin: 12px 0 16px 20px;
  color: var(--text-secondary);
}
.page-container li {
  margin-bottom: 8px;
  line-height: 1.5;
}
.page-container strong { color: var(--text); }

/* FAQ */
.faq { margin-top: 24px; }
.faq details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: background 0.2s;
}
.faq details[open] {
  background: var(--bg-card-hover);
}
.faq summary {
  font-weight: 600;
  cursor: pointer;
  padding: 16px 20px;
  font-size: 0.95rem;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--text-tertiary);
  transition: transform 0.2s;
}
.faq details[open] summary::after {
  content: "−";
}
.faq details p {
  padding: 0 20px 16px;
  margin-bottom: 0;
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Contact Card */
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-top: 40px;
}
.contact-card h2 {
  margin-top: 0;
  margin-bottom: 12px;
}
.contact-card p {
  margin-bottom: 0;
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.9rem;
}

/* Comparison Table */
.compare-table-wrap {
  overflow-x: auto;
  margin-top: 48px;
  -webkit-overflow-scrolling: touch;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: center;
  min-width: 600px;
}
.compare-table th,
.compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.compare-table th {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.compare-table th.highlight {
  color: var(--orange);
}
.compare-table td {
  color: var(--text-secondary);
}
.compare-table td.highlight {
  color: var(--text);
  background: rgba(255,159,10,0.04);
}
.compare-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--text);
}
.compare-table tbody tr:hover {
  background: rgba(255,255,255,0.02);
}

/* Landing page FAQ */
.landing-faq {
  max-width: 680px;
  margin: 40px auto 0;
  text-align: left;
}

/* Article / Blog pages */
.article-container {
  max-width: 780px;
}
.article-date {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  margin-bottom: 8px;
}
.article-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.6;
}
.article-container h2 {
  margin-top: 48px;
}
.article-container .compare-table {
  min-width: 700px;
}

/* Thank You Page */
.thank-you-page {
  text-align: center;
}
.thank-you-icon {
  margin-bottom: 24px;
}
.thank-you-page h1 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}
.thank-you-page > p {
  color: var(--text-secondary);
  margin-bottom: 40px;
}
.steps {
  text-align: left;
  max-width: 480px;
  margin: 0 auto 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
}
.step p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin: 0;
}
.thank-you-download {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 0;
}
.thank-you-download p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { gap: 16px; }
  .hero { padding: 120px 20px 60px; }
  .hero-screenshot { margin-top: 40px; }
  section { padding: 72px 20px; }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .split.reverse { direction: ltr; }
  .split-image { order: -1; }
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .nav-links a { font-size: 0.8rem; }
  .nav-links { gap: 12px; }
  .hero h1 { font-size: 2.2rem; }
  .feature-card { padding: 24px 20px; }
  .pricing-card { padding: 28px 24px; }
}