/* ============================================================
   Ratifi Design System
   Shared CSS for all pages at ratifi.app
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --primary: #1E3A5F;
  --primary-light: #2A4F7F;
  --primary-dark: #152B47;
  --accent: #3B82F6;
  --accent-light: #60A5FA;
  --success: #10B981;
  --success-light: #D1FAE5;
  --warning: #F59E0B;
  --warning-light: #FEF3C7;
  --danger: #EF4444;
  --danger-light: #FEF2F2;
  --text: #1F2937;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --bg: #F9FAFB;
  --bg-alt: #F3F4F6;
  --card: #FFFFFF;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
  --max-width-content: 800px;
  --max-width-narrow: 680px;
  --nav-height: 64px;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
}

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

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

/* Page structure: push footer to bottom */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.site-nav { flex-shrink: 0; }
.site-footer { flex-shrink: 0; margin-top: auto; }

/* --- Typography --- */
h1, h2, h3, h4 { line-height: 1.3; color: var(--text); }

h1 { font-size: 40px; font-weight: 800; letter-spacing: -0.5px; }
h2 { font-size: 30px; font-weight: 700; letter-spacing: -0.3px; }
h3 { font-size: 22px; font-weight: 600; }
h4 { font-size: 18px; font-weight: 600; }

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

.section { padding: 80px 24px; }
.section-alt { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* --- Navigation --- */
.site-nav {
  background: var(--primary);
  height: var(--nav-height);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.nav-logo:hover { opacity: 0.9; }
.nav-logo-wordmark {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
}

.nav-links a:hover {
  color: white;
  background: rgba(255,255,255,0.1);
}

.nav-links a.active {
  color: white;
  background: rgba(255,255,255,0.15);
}

.nav-cta {
  background: white !important;
  color: var(--primary) !important;
  font-weight: 700 !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm) !important;
}
.nav-cta:hover {
  background: rgba(255,255,255,0.9) !important;
  color: var(--primary) !important;
}

.nav-login {
  color: white !important;
  font-weight: 600 !important;
  border: 1.5px solid rgba(255,255,255,0.4) !important;
  padding: 7px 18px !important;
  border-radius: var(--radius-sm) !important;
  margin-right: 4px;
}
.nav-login:hover {
  border-color: white !important;
  background: rgba(255,255,255,0.1) !important;
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: white;
}

.nav-hamburger svg { display: block; }

/* Mobile-only Log In button (next to hamburger, hidden on desktop and when logged in) */
.nav-mobile-login {
  display: none !important;
  color: white !important;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border: 1.5px solid rgba(255,255,255,0.5);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-left: auto;
  margin-right: 8px;
}
body.logged-in .nav-mobile-login { display: none !important; }

/* Mobile nav */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s;
}
.nav-mobile-overlay.open { opacity: 1; }

.nav-mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: white;
  z-index: 1001;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding: 24px;
  overflow-y: auto;
}
.nav-mobile-drawer.open { transform: translateX(0); }

.nav-mobile-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
  float: right;
  font-size: 24px;
}

.nav-mobile-links {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-mobile-links a {
  display: block;
  padding: 12px 16px;
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.nav-mobile-links a:hover { background: var(--bg); }

.nav-mobile-links .mobile-cta {
  margin-top: 16px;
  background: var(--primary);
  color: white;
  text-align: center;
  font-weight: 700;
  border-radius: var(--radius);
}
.nav-mobile-links .mobile-cta:hover { background: var(--primary-light); }

/* Auth state toggles */
.nav-auth-only { display: none; }
body.logged-in .nav-guest-only { display: none !important; }
body.logged-in .nav-auth-only { display: flex; }
/* Mobile drawer auth toggles need block display */
body.logged-in .nav-mobile-links.nav-auth-only { display: flex; flex-direction: column; }

/* --- Footer --- */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 24px 32px;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-top: 12px;
  max-width: 280px;
}

.footer-col h4 {
  color: white;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  padding: 4px 0;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col a:hover { color: white; }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.5);
  margin-left: 20px;
  text-decoration: none;
}
.footer-bottom-links a:hover { color: white; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { opacity: 0.9; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: white; border: 2px solid transparent; }
.btn-accent { background: var(--accent); color: white; border: 2px solid transparent; }
.btn-outline { background: transparent; border: 2px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-white { background: white; color: var(--primary); border: 2px solid white; }
.btn-white-outline { background: transparent; border: 2px solid rgba(255,255,255,0.4); color: white; }
.btn-white-outline:hover { background: rgba(255,255,255,0.1); }
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 18px 36px; font-size: 18px; }

/* --- Cards --- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.card-hover { transition: box-shadow 0.2s, transform 0.2s; }
.card-hover:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

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

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--text);
  background: white;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
.form-input::placeholder { color: var(--text-light); }

.form-error {
  background: var(--danger-light);
  border: 1px solid #FECACA;
  color: var(--danger);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

.form-success {
  background: var(--success-light);
  border: 1px solid #BBF7D0;
  color: var(--success);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.text-sm { font-size: 14px; }
.text-xs { font-size: 12px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mb-4 { margin-top: 16px; }
.mb-8 { margin-bottom: 32px; }
.hidden { display: none !important; }

/* --- Page Header (for blog, sample, legal pages) --- */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 48px 24px 40px;
  text-align: center;
}
.page-header h1 {
  font-size: 36px;
  color: white;
  margin-bottom: 8px;
}
.page-header p {
  font-size: 16px;
  opacity: 0.8;
}
.page-header .breadcrumb {
  font-size: 14px;
  opacity: 0.7;
  margin-bottom: 16px;
}
.page-header .breadcrumb a { color: rgba(255,255,255,0.8); }
.page-header .breadcrumb a:hover { color: white; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }
  .section { padding: 48px 24px; }

  /* Show hamburger, hide ALL desktop nav links (guest and auth) */
  .nav-hamburger { display: block; }
  .nav-links { display: none !important; }
  /* Show mobile Log In button next to hamburger (guests only) */
  .nav-mobile-login { display: inline-flex !important; align-items: center; }
  body.logged-in .nav-mobile-login { display: none !important; }

  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-bottom-links { margin-top: 8px; }
  .footer-bottom-links a { margin: 0 10px; }
}

@media (max-width: 600px) {
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  .page-header h1 { font-size: 28px; }
  .container, .container-narrow, .container-content { padding: 0 16px; }
}