/*
 * Obsidian Sites — Shared CSS Framework
 * Base styles, layout system, and components for all templates.
 * Each template overrides --theme-* variables to customize.
 */

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

/* ===== Theme Variables (light defaults — override per template) ===== */
:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-surface: #f8fafc;
  --color-text: #333333;
  --color-text-muted: #6b7280;
  --color-heading: #111827;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-border: #e5e7eb;
  --color-footer-bg: #1f2937;
  --color-footer-text: #d1d5db;
  --color-footer-accent: #60a5fa;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --line-height: 1.7;

  /* Layout */
  --container-width: 1100px;
  --container-padding: 24px;
  --section-padding: 80px;
  --radius: 8px;
  --header-height: 72px;
}

/* ===== Base ===== */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

h1, h2, h3, h4 {
  color: var(--color-heading);
  line-height: 1.2;
  font-weight: 700;
}

/* ===== Layout ===== */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-content {
  flex: 1;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

section {
  padding: var(--section-padding) 0;
}

/* ===== Header ===== */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.site-logo img {
  max-height: 48px;
  width: auto;
}

.site-logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-heading);
  text-decoration: none;
}

.site-logo-text:hover {
  color: var(--color-heading);
}

/* ===== Navigation ===== */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.3px;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text);
  padding: 8px;
  line-height: 1;
}

/* ===== Hero ===== */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero .accent {
  color: var(--color-accent);
}

.hero-sub {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* ===== Section Headings ===== */
.section-title {
  font-size: var(--font-size-2xl);
  text-align: center;
  margin-bottom: 48px;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin: 12px auto 0;
}

/* ===== Page Content (multi-page templates) ===== */
.page-header {
  padding: 48px 0 24px;
}

.page-header h1 {
  font-size: var(--font-size-2xl);
  padding-bottom: 12px;
  position: relative;
}

.page-header h1::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin-top: 10px;
}

.page-body {
  padding-bottom: 60px;
}

.page-body p {
  margin-bottom: 1.2em;
}

/* ===== Cards ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

.card p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ===== Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background-color 0.2s, transform 0.1s;
  text-align: center;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

.btn-full {
  display: block;
  width: 100%;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.form-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  text-align: center;
}

.form-status:empty {
  display: none;
}

.form-status.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-status.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* ===== Testimonials ===== */
.testimonials {
  background: var(--color-surface);
}

.testimonial {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.testimonial blockquote {
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.6;
}

.testimonial cite {
  font-style: normal;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ===== Pricing ===== */
.pricing-card {
  max-width: 440px;
  margin: 0 auto;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
}

.pricing-label {
  display: inline-block;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-amount {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.pricing-amount .dollar {
  font-size: 2rem;
  vertical-align: super;
  margin-right: 2px;
}

.pricing-period {
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  display: block;
  margin-bottom: 32px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features .check {
  color: var(--color-success);
  font-weight: 700;
  margin-right: 10px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 48px 0 32px;
  font-size: var(--font-size-sm);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand p {
  margin-top: 8px;
  color: var(--color-footer-text);
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

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

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  color: var(--color-footer-text);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  color: var(--color-footer-text);
}

.footer-bottom a {
  color: var(--color-footer-accent);
}

/* Simple footer variant (single line) */
.footer-simple {
  background: var(--color-footer-bg);
  padding: 32px 0;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-footer-text);
}

.footer-simple a {
  color: var(--color-footer-accent);
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px;
    --container-padding: 20px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 20px var(--container-padding);
    z-index: 100;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 16px;
  }

  .site-header .header-inner {
    position: relative;
  }

  .hero {
    padding: 60px 0 48px;
  }

  .hero h1 {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-xl);
    margin-bottom: 32px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .pricing-card {
    padding: 32px 24px;
  }

  .pricing-amount {
    font-size: 2.8rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }
}