/* public.css; dark by default, html[data-theme="light"] */
:root {
  --bg: #0a0a0a;
  --panel: #101010;
  --panel2: #0d0d0d;

  --line: #292929;
  --line2: #1d1d1d;
  --hover-line: #404040;
  --focus-line: #666;

  --text: #e7e7e7;
  --muted: #888;
  --dim: #555;
  --faint: #4f4f4f;

  --mid: #777;
  --soft: #858585;
  --value: #c8c8c8;
  --meta: #aaa;

  --sel-bg: #ddd;
  --sel-text: #111;

  --btn-bg: #dcdcdc;
  --btn-text: #111;
  --btn-hover: #fff;

  --raise: #111;
  --plate: #151515;
  --inset: #080808;
  --dot: #252525;
  --chip-line: #2c2c2c;
  --rule: #222;
  --edge: #555;
  --placeholder: #505050;
  --grid-line: rgba(255, 255, 255, 0.018);

  --mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", "Courier New", monospace;
}

html[data-theme="light"] {
  --bg: #f4f4f5;
  --panel: #ffffff;
  --panel2: #fafafa;

  --line: #d4d4d8;
  --line2: #e4e4e7;
  --hover-line: #a1a1aa;
  --focus-line: #8e8e99;

  --text: #18181b;
  --muted: #71717a;
  --dim: #a1a1aa;
  --faint: #b6b6bd;

  --mid: #6b6b74;
  --soft: #52525b;
  --value: #3f3f46;
  --meta: #3f3f46;

  --sel-bg: #3f3f46;
  --sel-text: #ffffff;

  --btn-bg: #2a2a2e;
  --btn-text: #f4f4f5;
  --btn-hover: #000000;

  --raise: #f0f0f2;
  --plate: #ececee;
  --inset: #cfcfd4;
  --dot: #d4d4d8;
  --chip-line: #ceced4;
  --rule: #e4e4e7;
  --edge: #71717a;
  --placeholder: #a1a1aa;
  --grid-line: rgba(0, 0, 0, 0.045);
}

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

::selection { background: var(--sel-bg); color: var(--sel-text); }

body {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
a:hover { color: var(--text); }

button, input, select { font: inherit; }

:focus-visible {
  outline: 1px solid var(--mid);
  outline-offset: 1px;
}

/* ============================================
   LAYOUT UTILITIES
============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

.full-height {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.py-section { padding: 60px 0; }

/* subtle panel variation for alternating sections */
.gray-bg { background: var(--panel); }

/* ============================================
   HEADER & NAVIGATION
============================================ */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  z-index: 1000;
  padding: 14px 0;
}

.header-static {
  position: static;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--text);
  padding: 12px 0px;
}

.logo-icon {
  display: none;
}

.brand::before { content: "["; color: var(--dim); }
.brand::after  { content: "]"; color: var(--dim); }

.auth-buttons {
  display: flex;
  gap: 8px;
  align-items: center;
}

.back-link {
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.back-link:hover { color: var(--text); }

/* ============================================
   THEME TOGGLE
============================================ */
.footer-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  font: inherit;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  padding: 8px 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  border-color: var(--hover-line);
  color: var(--text);
  background: var(--raise);
}

.theme-icon { display: none; }

[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="light"] .theme-icon-moon { display: block; }

.theme-icon:hover { opacity: 0.8; }

/* ============================================
   BUTTONS
============================================ */
.btn {
  padding: 12px 16px;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.btn:hover {
  border-color: var(--focus-line);
  background: var(--raise);
  color: var(--text);
}

.btn-primary {
  background: var(--btn-bg);
  color: var(--btn-text);
}

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

.btn-lg {
  padding: 14px 20px;
  font-size: 0.85rem;
}

.btn-full { width: 100%; }
.btn-sm {
  padding: 8px 12px;
  font-size: 0.7rem;
}

/* ============================================
   HERO (ENHANCED — LARGER IMPACT)
============================================ */
.hero {
  padding: 120px 24px 80px;
  background: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 18px 18px;
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--line);
}

.hero .badge {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--line);
  padding: 7px 10px;
  border-radius: 0;
  font-size: 0.7rem;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
  color: var(--text);
  line-height: 1.15;
}

.hero-highlight {
  color: var(--muted);
}

.hero-subtitle {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hero-cta { margin-bottom: 3rem; }

.hero-cta .btn {
  font-size: 0.9rem;
  padding: 14px 24px;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 4rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px dotted var(--line2);
}

.stat { text-align: center; }

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  letter-spacing: 0.04em;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--dim);
  margin-top: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================================
   CARDS
============================================ */
.card-elevated {
  background: var(--panel2);
  border: 1px solid var(--line);
  padding: 24px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.card-elevated:hover {
  border-color: var(--hover-line);
  background: var(--raise);
}

.card-hover {
  transition: border-color 0.15s ease, background 0.15s ease;
  border: 1px solid var(--line);
  background: var(--panel2);
}

.card-hover:hover {
  border-color: var(--hover-line);
  background: var(--raise);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-block;
  border: 1px solid var(--line);
  padding: 7px 10px;
  font-size: 0.7rem;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.comment-badge::before {
  content: "/*";
  padding-right: .5rem;
}

.comment-badge::after {
  content: "*/";
  padding-left: .5rem;
}

.badge-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--text);
  margin-right: 6px;
  border: 1px solid var(--line);
}

.trial-badge {
  border-color: var(--line);
  color: var(--text);
  margin-top: 1rem;
}

.trial-badge::before {
  content: "✓ ";
  color: var(--text);
}

/* ============================================
   SECTION HEADERS
============================================ */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.7rem;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.section-subtitle {
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 0.05em;
}

/* ============================================
   STEPS GRID (DATA-FOCUSED)
============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.step-card {
  background: var(--panel2);
  border: 1px solid var(--line);
  padding: 24px;
  transition: border-color 0.15s ease, background 0.15s ease;
  position: relative;
}

.step-card:hover {
  border-color: var(--hover-line);
  background: var(--raise);
}

.step-number {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 36px;
  height: 36px;
  background: var(--btn-bg);
  color: var(--btn-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.8rem;
  border: 1px solid var(--line);
}

.step-icon {
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
  background: var(--plate);
}

.step-icon svg { display: block; }

.step-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.step-desc {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

/* ============================================
   PRICING
============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--panel2);
  border: 1px solid var(--line);
  padding: 24px;
  transition: border-color 0.15s ease, background 0.15s ease;
  position: relative;
}

.pricing-card:hover {
  border-color: var(--hover-line);
  background: var(--raise);
}

.pricing-card.popular {
  border-color: var(--focus-line);
  background: var(--bg);
}

.popular-badge {
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--btn-bg);
  color: var(--btn-text);
  padding: 4px 8px;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border: 1px solid var(--line);
}

.pricing-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
}

.pricing-price {
  font-size: 32px;
  font-weight: 700;
  margin: 1rem 0;
  color: var(--text);
}

.pricing-note {
  margin: 22px auto 0;
  max-width: 560px;
  text-align: center;
}

.price-currency {
  font-size: 14px;
  font-weight: 500;
  vertical-align: super;
}

.price-period {
  font-size: 11px;
  color: var(--dim);
  font-weight: normal;
  letter-spacing: 0.05em;
}

.pricing-desc {
  color: var(--dim);
  margin-bottom: 1.5rem;
  font-size: 11px;
  letter-spacing: 0.05em;
}

.features-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.03em;
}

.check-mark {
  color: var(--text);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================
   FOOTER
============================================ */

.footer {
  background: var(--panel);
  color: var(--muted);
  padding: 48px 0 24px;
  position: relative;
  border-top: 1px solid var(--line);
  margin-top: auto;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hover-line), transparent);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand .logo {
  color: var(--text);
  padding: 0;
}

.footer-brand p {
  font-size: 11px;
  color: var(--dim);
  margin-top: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.footer-links h4 {
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.5rem; }

.footer-links a {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.03em;
}

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

.footer-bottom {
  border-top: 1px dotted var(--line2);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright {
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 0.05em;
}

/* ============================================
   FORMS (for auth pages)
============================================ */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-weight: 700;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input:focus { border-color: var(--focus-line); }
.form-input::placeholder { color: var(--dim); }

.form-input:disabled {
  color: var(--mid);
  cursor: not-allowed;
}

.form-hint {
  font-size: 10px;
  color: var(--dim);
  margin-top: 0.5rem;
  letter-spacing: 0.03em;
}

.form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.remember-me {
  display: flex;
  align-items: center;
  gap: 8px;
}

.remember-me input[type="checkbox"] {
  width: 13px;
  height: 13px;
  accent-color: var(--text);
}

.forgot-link {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.forgot-link:hover { color: var(--text); }

.terms-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 1.5rem;
}

.terms-checkbox input[type="checkbox"] {
  width: 13px;
  height: 13px;
  margin-top: 2px;
}

.terms-checkbox label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

/* Password strength */
.password-strength {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}

.strength-bar {
  flex: 1;
  height: 3px;
  background: var(--line2);
  border: 1px solid var(--line);
}

.strength-bar.weak   { background: var(--dim); }
.strength-bar.fair   { background: var(--muted); }
.strength-bar.good   { background: var(--value); }
.strength-bar.strong { background: var(--text); }

.auth-switch {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--dim);
  font-size: 10px;
  letter-spacing: 0.03em;
}

.auth-switch a { color: var(--muted); }
.auth-switch a:hover { color: var(--text); }

/* Divider & Social Login */
.divider {
  display: flex;
  align-items: center;
  margin: 1.5rem 0;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line2);
}

.divider span {
  padding: 0 1rem;
  color: var(--dim);
  font-size: 10px;
}

.social-login {
  display: flex;
  gap: 8px;
}

.btn-social {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--muted);
  font-weight: 500;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s ease;
  letter-spacing: 0.03em;
}

.btn-social:hover {
  border-color: var(--focus-line);
  background: var(--raise);
  color: var(--text);
}

/* Auth Container */
.auth-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

.auth-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.auth-title {
  font-size: 18px;
  margin-bottom: 0.5rem;
  color: var(--text);
  letter-spacing: 0.04em;
}

.auth-subtitle {
  color: var(--dim);
  font-size: 11px;
  letter-spacing: 0.03em;
}

/* ============================================
   LEGAL PAGES
============================================ */
.legal {
  flex: 1;
  padding: 60px 0 80px;
  background: var(--bg);
}

.legal-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

.legal-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.legal-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.legal-updated {
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 0.05em;
}

.legal-body h2 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin: 2rem 0 0.75rem;
  letter-spacing: 0.04em;
}

.legal-body h3 {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  margin: 1.5rem 0 0.5rem;
  letter-spacing: 0.05em;
}

.legal-body p {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.legal-body ul,
.legal-body ol {
  margin: 0 0 1rem 1.25rem;
  font-size: 12px;
}

.legal-body li {
  color: var(--muted);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.legal-body a {
  color: var(--muted);
}

.legal-body a:hover { color: var(--text); }

.legal-callout {
  background: var(--panel);
  border-left: 2px solid var(--focus-line);
  padding: 12px 14px;
  margin: 1.5rem 0;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.legal-callout strong {
  color: var(--text);
}

/* ============================================
   RESPONSIVE
============================================ */

@media (max-width: 400px) {
  .nav-container .back-link,
  .nav-container .logo {
    margin: 0 auto;
  }

  .nav-container {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .auth-buttons {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero { padding: 80px 16px 60px; }
  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 13px; }

  .hero-cta .btn {
    font-size: 0.8rem;
    padding: 12px 20px;
  }

  .stats-row {
    flex-direction: column;
    gap: 1.5rem;
  }

  .stat-value { font-size: 24px; }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .container, .container-sm { padding: 0 16px; }

  .header { padding: 12px 0; }

  .hero { padding: 60px 16px 40px; }
  .hero-title { font-size: 22px; }

  .btn {
    padding: 10px 14px;
    font-size: 0.7rem;
  }

  .btn-lg {
    padding: 12px 16px;
    font-size: 0.75rem;
  }

  .py-section { padding: 40px 0; }

  .section-title { font-size: 20px; }

  .auth-container { padding: 16px; }

  .card-elevated { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ============================================
   FLASH MESSAGES (post-redirect notifications)
============================================ */
.flash {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 0 0 1px var(--inset) inset;
  padding: 13px 16px;
  margin-bottom: 17px;
  animation: flash-in 0.25s ease;
}

.flash p {
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  line-height: 1.6;
  margin: 0;
}

.flash strong { color: var(--text); }

.flash a {
  color: var(--text);
  text-decoration: underline;
}

.flash a:hover { background: var(--text); color: var(--bg); }

/* severity tag — inverse block scales with severity */
.flash-tag {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 8px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}

.flash-error .flash-tag {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.flash-warn .flash-tag {
  border-color: var(--text);
  color: var(--text);
}

.flash-ok .flash-tag {
  border-color: var(--focus-line);
  color: var(--value);
}

/* error variant gets a louder edge */
.flash-error {
  border-color: var(--focus-line);
}

/* dismiss button (optional, if JS present) */
.flash-dismiss {
  justify-self: end;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--dim);
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 0.7rem;
  line-height: 1;
}

.flash-dismiss:hover {
  border-color: var(--focus-line);
  color: var(--text);
}

@keyframes flash-in {
  from { opacity: 0; transform: translateY(-4px); }
}

@media (prefers-reduced-motion: reduce) {
  .flash { animation: none; }
}