/* ============================================================
   BrowseWise — Global Styles
   Aesthetic: Warm Precision. Forest green + cream + gold.
   Fonts: Playfair Display (display) + DM Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,600;0,700;0,800;1,600&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* === Variables === */
:root {
  --bg:           #FAFAF6;
  --bg-alt:       #F2F5EE;
  --surface:      #FFFFFF;
  --surface-tint: #F6FAF5;

  --primary:      #1B4332;
  --primary-mid:  #2D6A4F;
  --primary-light:#52B788;
  --primary-pale: #D8EDD4;

  --accent:       #B7791F;
  --accent-light: #FEF3C7;
  --accent-gold:  #D4A017;

  --text:         #141A12;
  --text-mid:     #374532;
  --muted:        #6B7A63;
  --muted-light:  #9EAA95;
  --border:       #DDE5D8;
  --border-light: #EDF2EA;

  --shadow-sm:    0 1px 3px rgba(27,67,50,0.08), 0 1px 2px rgba(27,67,50,0.06);
  --shadow:       0 4px 16px rgba(27,67,50,0.10), 0 2px 6px rgba(27,67,50,0.06);
  --shadow-lg:    0 12px 40px rgba(27,67,50,0.14), 0 4px 12px rgba(27,67,50,0.08);

  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
  --radius-xl:    32px;

  --nav-h:        68px;
  --max-w:        1160px;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }

/* === Typography === */
.display { font-family: 'Playfair Display', Georgia, serif; }
h1, h2, h3, h4 { font-family: 'Playfair Display', Georgia, serif; line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
p { color: var(--text-mid); }
.lead { font-size: 1.15rem; line-height: 1.7; color: var(--muted); }
.small { font-size: 0.875rem; }
.mono { font-family: 'JetBrains Mono', 'Courier New', monospace; font-size: 0.85em; }

/* === Layout === */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 64px; }
.section-header .eyebrow { color: var(--primary-mid); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 12px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.05rem; color: var(--muted); }

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius); font-size: 0.95rem;
  font-weight: 600; border: none; transition: all 0.18s ease; white-space: nowrap;
  font-family: 'DM Sans', sans-serif;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 2px 8px rgba(27,67,50,0.25);
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-mid);
  box-shadow: 0 4px 16px rgba(27,67,50,0.3);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent; color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover:not(:disabled) { background: var(--primary); color: #fff; }
.btn-ghost {
  background: transparent; color: var(--muted);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--bg-alt); color: var(--text); border-color: var(--border); }
.btn-gold {
  background: var(--accent-gold); color: #fff;
  box-shadow: 0 2px 8px rgba(180,140,10,0.3);
}
.btn-gold:hover:not(:disabled) { background: var(--accent); transform: translateY(-1px); }
.btn-danger { background: #DC2626; color: #fff; }
.btn-danger:hover:not(:disabled) { background: #B91C1C; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius); }
.btn-full { width: 100%; }
.btn-loading { opacity: 0.7; cursor: wait; }

/* === Cards === */
.card {
  background: var(--surface); border-radius: var(--radius-lg);
  border: 1px solid var(--border-light); box-shadow: var(--shadow-sm);
}
.card-p { padding: 28px; }

/* === Badges === */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
}
.badge-green { background: var(--primary-pale); color: var(--primary); }
.badge-gold  { background: var(--accent-light); color: var(--accent); }
.badge-gray  { background: #F3F4F6; color: #6B7280; }
.badge-pro   { background: var(--primary); color: #fff; }

/* === Forms === */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; color: var(--text-mid); margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 10px 14px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-size: 0.95rem; color: var(--text);
  background: var(--surface); transition: border-color 0.15s;
  font-family: 'DM Sans', sans-serif;
}
.form-control:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(82,183,136,0.15); }
.form-control::placeholder { color: var(--muted-light); }
.form-hint { font-size: 0.8rem; color: var(--muted); margin-top: 5px; }
.input-row { display: flex; gap: 10px; }
.input-row .form-control { flex: 1; }

/* === Alerts === */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: 0.9rem; margin-bottom: 16px; }
.alert-error   { background: #FEF2F2; border: 1px solid #FECACA; color: #DC2626; }
.alert-success { background: #F0FDF4; border: 1px solid #BBF7D0; color: #15803D; }
.alert-info    { background: var(--surface-tint); border: 1px solid var(--primary-pale); color: var(--primary); }
.alert-warn    { background: var(--accent-light); border: 1px solid #FDE68A; color: var(--accent); }

/* === Toggle Switch === */
.toggle-wrap { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--border-light); }
.toggle-wrap:last-child { border-bottom: none; }
.toggle-info { flex: 1; }
.toggle-label { font-weight: 500; font-size: 0.95rem; color: var(--text); }
.toggle-desc  { font-size: 0.82rem; color: var(--muted); margin-top: 2px; }
.toggle {
  position: relative; width: 44px; height: 24px; flex-shrink: 0; margin-left: 12px;
}
.toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.toggle-slider {
  position: absolute; inset: 0; border-radius: 24px;
  background: var(--border); transition: all 0.2s ease; cursor: pointer;
}
.toggle-slider::before {
  content: ''; position: absolute; height: 18px; width: 18px;
  border-radius: 50%; left: 3px; top: 3px;
  background: #fff; transition: 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.toggle input:checked + .toggle-slider { background: var(--primary); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }
.toggle input:disabled + .toggle-slider { opacity: 0.5; cursor: not-allowed; }

/* === Divider === */
.divider { border: none; border-top: 1px solid var(--border-light); margin: 24px 0; }

/* === Navigation === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-h);
  background: rgba(250,250,246,0.88); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  display: flex; align-items: center;
  transition: box-shadow 0.2s;
}
.nav.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  width: 100%; display: flex; align-items: center; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: 'Playfair Display', serif; font-weight: 700; font-size: 1.15rem; color: var(--primary); }
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: 16px; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--muted); transition: color 0.15s; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.nav-actions .btn { padding: 9px 20px; font-size: 0.875rem; }

/* Hamburger */
.nav-toggle { display: none; background: none; border: none; padding: 6px; color: var(--text); }
.nav-mobile { display: none; position: fixed; inset: var(--nav-h) 0 0 0; background: var(--bg); z-index: 99; padding: 32px 24px; flex-direction: column; gap: 8px; overflow-y: auto; }
.nav-mobile.open { display: flex; }
.nav-mobile a { font-size: 1.1rem; font-weight: 500; padding: 12px 0; border-bottom: 1px solid var(--border-light); color: var(--text); }
.nav-mobile .btn { margin-top: 8px; }

/* === Footer === */
footer {
  background: var(--primary); color: rgba(255,255,255,0.75);
  padding: 64px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .nav-logo { color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 0.875rem; line-height: 1.6; max-width: 260px; color: rgba(255,255,255,0.6); }
.footer-col h5 { font-family: 'DM Sans', sans-serif; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 0.9rem; padding: 4px 0; color: rgba(255,255,255,0.7); transition: color 0.15s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; font-size: 0.825rem; }
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: #fff; }

/* === Page scaffold === */
.page-top { padding-top: var(--nav-h); }
.prose h2 { margin-bottom: 12px; }
.prose p + p { margin-top: 12px; }

/* === Animations === */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes floatA {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-10px); }
}
@keyframes floatB {
  0%, 100% { transform: translateY(0px) rotate(2deg); }
  50%       { transform: translateY(-14px) rotate(-2deg); }
}
@keyframes shimmer {
  from { background-position: -200% center; }
  to   { background-position:  200% center; }
}
@keyframes pulse-ring {
  0%   { transform: scale(1);    opacity: 0.6; }
  100% { transform: scale(1.6);  opacity: 0; }
}
.animate-fade-up  { animation: fadeUp 0.6s ease both; }
.animate-fade-in  { animation: fadeIn 0.5s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Scroll-reveal */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* === Responsive === */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-actions .btn-outline { display: none; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .btn-lg { padding: 14px 28px; }
}