/* public/styles/site.css */

:root {
  --bg: #0f1115;
  --bg-elevated: #161b22;
  --bg-soft: #1b2330;
  --border: #263041;
  --text: #f5f7fa;
  --muted: #a8b3c2;
  --accent: #8ec5ff;
  --accent-hover: #74b6fa;
  --danger: #ff6b6b;
  --success: #4ade80;
  --warning: #fbbf24;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(142, 197, 255, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(142, 197, 255, 0.06), transparent 22%),
    linear-gradient(180deg, #0d1117 0%, #0f1115 100%);
  color: var(--text);
}

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

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

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.page-main {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.auth-wrap {
  min-height: calc(100vh - 60px);
  display: grid;
  place-items: center;
  padding: 40px 20px;
}

.auth-card {
  width: 100%;
  max-width: 520px;
  background: rgba(22, 27, 34, 0.95);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 30px;
  backdrop-filter: blur(8px);
}

.auth-title {
  margin: 0 0 10px;
  font-size: 2rem;
  line-height: 1.1;
}

.auth-subtitle {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.form-grid {
  display: grid;
  gap: 16px;
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-label {
  font-weight: 700;
  color: var(--text);
  font-size: 0.95rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  border: 1px solid var(--border);
  background: #0f141a;
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(142, 197, 255, 0.14);
}

.form-help {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #17202b;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: #3a4a61;
  background: #1a2633;
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--accent);
  color: #08111c;
  border-color: transparent;
  font-weight: 700;
}

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

.btn-full {
  width: 100%;
}

.panel {
  background: rgba(22, 27, 34, 0.95);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
}

.alert {
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 0.95rem;
  line-height: 1.45;
  border: 1px solid transparent;
}

.alert + .alert {
  margin-top: 10px;
}

.alert-info {
  background: rgba(142, 197, 255, 0.08);
  border-color: rgba(142, 197, 255, 0.22);
  color: #d9ebff;
}

.alert-success {
  background: rgba(74, 222, 128, 0.08);
  border-color: rgba(74, 222, 128, 0.22);
  color: #dbffe8;
}

.alert-error {
  background: rgba(255, 107, 107, 0.08);
  border-color: rgba(255, 107, 107, 0.22);
  color: #ffe2e2;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--text);
  text-decoration: none;
}

.brand-logo {
  height: 64px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--text);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
}

.footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.88);
}

.footer-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

.hidden {
  display: none !important;
}

.center-text {
  text-align: center;
}

.small-text {
  font-size: 0.92rem;
  color: var(--muted);
}

.mt-12 {
  margin-top: 12px;
}

.mt-16 {
  margin-top: 16px;
}

.mt-20 {
  margin-top: 20px;
}

.mt-24 {
  margin-top: 24px;
}

@media (max-width: 640px) {
  .auth-card {
    padding: 22px;
  }

  .auth-title {
    font-size: 1.7rem;
  }

  .topbar-inner {
    padding: 12px 16px;
  }

  .brand-logo {
    height: 52px;
  }

  .page-main {
    padding: 24px 16px 44px;
  }
}