/* MosaicVPN — setup.css
   Visual styles for /setup.html onboarding
   Inherits design tokens from /assets/common.css
*/

:root {
  --setup-maxw: 640px;
  --focus-ring: 0 0 0 3px rgba(184, 92, 56, 0.28);
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
  padding: 32px 0 48px;
}

.setup-container {
  width: 100%;
  max-width: var(--setup-maxw);
  margin: 0 auto;
}

/* ─── Stepper ──────────────────────────────────────────────── */
.steps-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  margin-bottom: 28px;
  padding: 0 8px;
}

.steps-nav::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 24px;
  right: 24px;
  height: 2px;
  background: var(--border);
  z-index: 1;
}

.step-indicator {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  padding: 0;
  cursor: default;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.step-num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
  transition: all 0.2s ease;
}

.step-indicator.active .step-num {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 4px var(--card);
}

.step-indicator.active {
  color: var(--text);
  font-weight: 600;
}

.step-indicator.completed .step-num {
  border-color: var(--success);
  background: var(--success);
  color: #fff;
}

/* ─── Card Surface ─────────────────────────────────────────── */
.card-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(20px, 5vw, 36px);
  box-shadow: 0 8px 30px rgba(43, 38, 32, 0.06);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.card-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hi), var(--border));
}

.card-header {
  margin-bottom: 24px;
}

.card-title {
  font-family: var(--serif);
  font-size: clamp(24px, 5vw, 32px);
  font-weight: 600;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 8px;
}

.card-desc {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.55;
  margin: 0;
}

/* ─── Tabs ─────────────────────────────────────────────────── */
.tab-group {
  display: flex;
  background: var(--elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 20px;
  gap: 4px;
}

.tab-btn {
  flex: 1;
  min-height: 44px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-2);
  font-weight: 600;
  font-size: 14px;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 12px;
}

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

.tab-btn.active {
  background: var(--bg);
  color: var(--text);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
}

.tab-btn:focus-visible {
  outline: 2px solid var(--accent);
}

/* ─── Forms & Inputs ───────────────────────────────────────── */
.form-group {
  margin-bottom: 18px;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.field {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  font-size: 15px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

.field:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.field::placeholder {
  color: var(--muted);
}

.form-help {
  font-size: 12px;
  color: var(--muted);
  margin-top: 5px;
  display: block;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.45;
  cursor: pointer;
  margin-bottom: 18px;
}

.checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-label a {
  color: var(--accent);
  text-decoration: underline;
}

/* ─── Buttons & Actions (>= 48px) ──────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  box-sizing: border-box;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--ink);
  color: var(--on-ink);
  box-shadow: 0 2px 0 var(--border-ink);
}

.btn-primary:hover:not(:disabled) {
  background: #3c342b;
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 0 #8c4224;
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-hi);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--elev);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--hover);
  border-color: var(--border-ink);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn:focus-visible {
  outline: 3px solid rgba(184, 92, 56, 0.4);
  outline-offset: 2px;
}

/* ─── Alerts & Status Banners ──────────────────────────────── */
.alert {
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  text-align: left;
}

.alert-info {
  background: var(--elev);
  border: 1px solid var(--border);
  color: var(--text);
}

.alert-warn {
  background: rgba(196, 120, 48, 0.12);
  border: 1px solid rgba(196, 120, 48, 0.35);
  color: #834710;
}

.alert-danger {
  background: rgba(155, 66, 52, 0.12);
  border: 1px solid rgba(155, 66, 52, 0.35);
  color: var(--danger);
}

.alert-success {
  background: rgba(91, 122, 58, 0.12);
  border: 1px solid rgba(91, 122, 58, 0.35);
  color: var(--success);
}

/* ─── Status Badges ────────────────────────────────────────── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.status-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.status-badge.active {
  background: rgba(91, 122, 58, 0.12);
  color: var(--success);
}

.status-badge.expired,
.status-badge.inactive {
  background: rgba(155, 66, 52, 0.12);
  color: var(--danger);
}

.status-badge.warn {
  background: rgba(196, 120, 48, 0.12);
  color: var(--warn);
}

/* ─── Platform Picker ──────────────────────────────────────── */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}

.platform-card-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--elev);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s ease;
  cursor: pointer;
}

.platform-card-btn svg {
  width: 22px;
  height: 22px;
  margin-bottom: 4px;
}

.platform-card-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.platform-card-btn.active {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

/* ─── Profile Info Card ────────────────────────────────────── */
.profile-meta-card {
  background: var(--elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.profile-meta-main {
  text-align: left;
}

.profile-email {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 4px;
}

.profile-id {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

/* ─── Telegram Challenge Card ──────────────────────────────── */
.tg-challenge-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  margin: 16px 0;
}

.pulse-indicator {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.6; }
}

/* ─── Utility ──────────────────────────────────────────────── */
.hidden {
  display: none !important;
}

.text-muted {
  color: var(--muted);
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 20px 0;
  color: var(--muted);
  font-size: 12px;
  font-family: var(--mono);
  text-transform: uppercase;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border);
}

.divider::before {
  margin-right: 12px;
}

.divider::after {
  margin-left: 12px;
}

/* ─── Responsive (320px support) ───────────────────────────── */
@media (max-width: 480px) {
  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-nav {
    padding: 0;
  }

  .step-label {
    display: none;
  }

  .card-box {
    border-radius: 12px;
    padding: 20px 16px;
  }

  .profile-meta-card {
    flex-direction: column;
    align-items: flex-start;
  }
}