/* ============================================================
   common.css — Shared styles for all functional pages
   Color palette: light background, blue & orange accents
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

/* ── CSS Variables ── */
:root {
  --bg-page:        #F0F5FA;
  --bg-surface:     #FFFFFF;
  --bg-surface-alt: #EBF2F9;
  --bg-header:      #D6E6F2;

  --blue-dark:      #1B3A5C;
  --blue-mid:       #2E6DA4;
  --blue-light:     #6FA3C8;
  --blue-pale:      #C8DFF0;
  --blue-badge:     #3D7DB5;

  --orange:         #E8711F;
  --orange-hover:   #C95E10;
  --orange-light:   #FDE8D5;

  --text-primary:   #1A2B3C;
  --text-secondary: #4A6580;
  --text-muted:     #7A96AE;
  --text-on-dark:   #FFFFFF;

  --border:         #C8DFF0;
  --border-focus:   #6FA3C8;

  --success:        #22c55e;
  --warning:        #E8711F;
  --error:          #ef4444;

  --radius-sm:      6px;
  --radius-md:      10px;
  --radius-lg:      14px;

  --shadow-sm:      0 1px 4px rgba(27,58,92,.08);
  --shadow-md:      0 4px 16px rgba(27,58,92,.10);
  --shadow-lg:      0 8px 32px rgba(27,58,92,.13);

  --font-main:      'DM Sans', -apple-system, sans-serif;
  --font-mono:      'DM Mono', monospace;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

/* ── Page Layout ── */
.page-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 20px;
}

/* ── Section Block ── */
.section {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: -0.01em;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--orange);
  color: var(--text-on-dark);
}
.btn-primary:hover {
  background-color: var(--orange-hover);
  box-shadow: 0 3px 10px rgba(232,113,31,.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--blue-mid);
  color: var(--text-on-dark);
}
.btn-secondary:hover {
  background-color: var(--blue-dark);
  box-shadow: 0 3px 10px rgba(46,109,164,.3);
  transform: translateY(-1px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--blue-mid);
  border: 1.5px solid var(--blue-pale);
}
.btn-ghost:hover {
  background-color: var(--bg-surface-alt);
  border-color: var(--blue-light);
}

/* How it works — highlighted variant */
.btn-how-it-works {
  background-color: var(--orange-light);
  color: var(--orange-hover);
  border: 1.5px solid var(--orange);
}
.btn-how-it-works:hover {
  background-color: var(--orange);
  color: #fff;
  border-color: var(--orange);
}

.btn-inactive {
  background-color: #BDC9D5;
  color: #FFFFFF;
  cursor: not-allowed;
}
.btn-inactive:hover {
  background-color: #BDC9D5;
  transform: none;
  box-shadow: none;
}
.btn-dark {
  background-color: var(--blue-dark);
  color: #fff;
  border: none;
  transition: all 0.2s ease;
}
.btn-dark:hover {
  background-color: #122540;
  box-shadow: 0 3px 10px rgba(27,58,92,.3);
  transform: translateY(-1px);
}

/* ── Form Elements ── */
textarea, input[type="text"], input[type="url"] {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  background-color: var(--bg-surface-alt);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
  line-height: 1.6;
}
textarea:focus, input[type="text"]:focus, input[type="url"]:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(111,163,200,.18);
  background-color: #FFFFFF;
}
textarea::placeholder, input::placeholder {
  color: var(--text-muted);
}

/* ── Table ── */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 0.875rem;
}
th, td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
th {
  background-color: var(--blue-dark);
  color: var(--text-on-dark);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
td {
  background-color: var(--bg-surface);
}
tr:nth-child(even) td {
  background-color: #F6FAFE;
}

/* ── Status badges ── */
.status-success { color: var(--success); font-weight: 700; }
.status-redirect { color: var(--orange); font-weight: 700; }
.status-error   { color: var(--error);   font-weight: 700; }

.redirect-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.no-description {
  color: var(--text-muted);
  font-style: italic;
}

/* ── Checkbox ── */
input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--orange);
}
.need-more-cell { text-align: center; }

/* ── Loading ── */
.loading {
  display: none;
  color: var(--text-secondary);
  margin-top: 16px;
  text-align: center;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

/* ── Prompt section ── */
.prompt-section {
  margin-top: 20px;
  display: none;
}
.prompt-section label {
  display: block;
  font-weight: 600;
  color: var(--blue-dark);
  margin-bottom: 6px;
  font-size: 0.875rem;
}
.prompt-section textarea { height: 76px; }

/* ── Info / Tip block ── */
.tip-block {
  background: var(--orange-light);
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 14px 18px;
  font-size: 0.875rem;
  color: var(--text-primary);
  line-height: 1.55;
}
.tip-block strong { color: var(--orange-hover); }

/* ── Roadmap ── */
.roadmap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.roadmap-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--text-primary);
  line-height: 1.45;
}
.roadmap-badge {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--blue-badge);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.roadmap-badge.active {
  background: var(--orange);
}
/* Roadmap badges as links */
a.roadmap-badge {
  text-decoration: none;
  transition: background-color 0.2s, transform 0.15s;
}
a.roadmap-badge:hover {
  background: var(--orange);
  transform: scale(1.1);
}

/* Sub-items 4.1, 4.2 */
.roadmap-sub {
  padding-left: 20px;
}
.roadmap-badge-sub {
  width: 34px;
  height: 34px;
  font-size: 0.68rem;
  background: var(--blue-light);
}
a.roadmap-badge-sub:hover {
  background: var(--orange);
}

/* ── How it works panel ── */
.how-it-works-panel {
  display: none;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--text-primary);
  line-height: 1.65;
}
.how-it-works-panel h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 12px;
}
.how-it-works-panel ol {
  padding-left: 18px;
}
.how-it-works-panel ol li {
  margin-bottom: 8px;
}
.how-it-works-panel ul {
  padding-left: 18px;
  margin-top: 6px;
}
.how-it-works-panel ul li {
  margin-bottom: 4px;
  list-style: disc;
}

/* ── CTA Block ── */
.cta-block {
  background: var(--blue-dark);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-top: 20px;
  text-align: center;
}
.cta-block h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 22px;
  line-height: 1.4;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}
.btn-cta-primary {
  background-color: var(--orange);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
}
.btn-cta-primary:hover {
  background-color: var(--orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(232,113,31,.4);
}
.btn-cta-ghost {
  background-color: transparent;
  color: #fff;
  padding: 11px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  border: 2px solid rgba(255,255,255,.55);
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s, background-color 0.2s, transform 0.15s;
  display: inline-flex;
  align-items: center;
}
.btn-cta-ghost:hover {
  border-color: #fff;
  background-color: rgba(255,255,255,.1);
  transform: translateY(-2px);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .page-content { padding: 16px 14px 40px; }
  .section { padding: 20px 18px; }
  .btn {
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: 8px;
  }
}