/* ============================================================
   STULINK — Unified stylesheet
   Drop-in replacement for frontend/static/styles.css

   Strategy: keeps every legacy class name used by booking.js,
   admin.js, login.js, register.js (cal-day, slot-btn, stat-card,
   badge-confirmed, card, nav-item, toast-success, etc.) so the
   JS keeps working untouched. The look is upgraded via new
   tokens, typography, and refined component styling.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Geist:wght@400;500;600;700;800&family=Geist+Mono:wght@400;500&display=swap');

:root {
  /* Brand — cobalt, deeper than stock blue */
  --stu-50:  #eef4ff;
  --stu-100: #dbe6ff;
  --stu-200: #bdd0ff;
  --stu-300: #8eafff;
  --stu-400: #5c84ff;
  --stu-500: #3a60f5;
  --stu-600: #2647d8;
  --stu-700: #1f39ae;
  --stu-800: #1d3385;
  --stu-900: #1a2d6b;
  --stu-950: #0f1a45;

  /* Warm accent */
  --warm-50:  #fff5eb;
  --warm-100: #ffe6cc;
  --warm-300: #ffb781;
  --warm-500: #f07a24;
  --warm-700: #a84a0e;

  /* Neutrals (warm slate) */
  --ink-50:  #f7f7f5;
  --ink-100: #eef0ee;
  --ink-150: #e3e6e2;
  --ink-200: #d0d4cf;
  --ink-300: #aeb3ad;
  --ink-400: #7d8178;
  --ink-500: #55594f;
  --ink-600: #3a3d34;
  --ink-700: #272a22;
  --ink-900: #111310;
  --paper:       #ffffff;
  --paper-tint:  #fafaf7;

  /* Semantic */
  --ok-50: #ecfdf3;  --ok-500: #1fa95a;  --ok-700: #0f7a3d;
  --err-50: #fef2f2; --err-500: #dc2626; --err-700: #991b1b;
  --warn-50: #fff8e6; --warn-500: #d97706; --warn-700: #92400e;

  /* Legacy aliases kept for backward-compat with any old CSS/JS */
  --bg:          var(--ink-50);
  --panel:       var(--paper);
  --border:      var(--ink-150);
  --text:        var(--ink-900);
  --muted:       var(--ink-500);
  --accent:      var(--stu-500);
  --accent-hover: var(--stu-600);
  --error:       var(--err-500);
  --ok:          var(--ok-500);

  /* New semantic aliases */
  --surface:       var(--paper);
  --surface-2:     var(--paper-tint);
  --border-strong: var(--ink-200);
  --fg-1: var(--ink-900);
  --fg-2: var(--ink-700);
  --fg-3: var(--ink-500);
  --fg-4: var(--ink-400);

  /* Type */
  --font-sans:  'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Instrument Serif', 'Iowan Old Style', 'Palatino', Georgia, serif;
  --font-mono:  'Geist Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* Radii */
  --r-xs: 4px; --r-sm: 6px; --r-md: 10px; --r-lg: 14px; --r-xl: 20px; --r-pill: 999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(17, 19, 16, 0.04);
  --shadow-sm: 0 1px 2px rgba(17, 19, 16, 0.05), 0 1px 3px rgba(17, 19, 16, 0.04);
  --shadow-md: 0 4px 8px -2px rgba(17, 19, 16, 0.06), 0 2px 4px -2px rgba(17, 19, 16, 0.04);
  --shadow-lg: 0 12px 24px -6px rgba(17, 19, 16, 0.10), 0 4px 8px -2px rgba(17, 19, 16, 0.05);
  --shadow-focus: 0 0 0 3px rgba(58, 96, 245, 0.25);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 120ms;
  --dur-base: 200ms;
}

/* ──────────────────────────────────────────────────────────
   BASE
   ────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg); color: var(--fg-2);
  font-family: var(--font-sans);
  font-size: 14px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01' on, 'cv11' on;
}

h1, h2, h3, h4 { margin: 0; color: var(--fg-1); font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 28px; letter-spacing: -0.02em; }
h2 { font-size: 18px; }
p  { margin: 0; }

.muted { color: var(--fg-3); margin: 0; }
.hidden { display: none; }
.error { color: var(--err-500); min-height: 1.2em; margin: 8px 0 0; font-size: 13px; }

code {
  font-family: var(--font-mono);
  background: var(--ink-100);
  padding: 2px 6px; border-radius: 4px;
  font-size: 0.9em;
}

/* ──────────────────────────────────────────────────────────
   PUBLIC BOOKING PAGE (index.html)
   ────────────────────────────────────────────────────────── */
.wrap { max-width: 760px; margin: 0 auto; padding: 44px 24px 100px; }
.wrap > header { margin-bottom: 20px; }
.wrap > header h1 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  line-height: 1.15;
}
.wrap > header .muted { font-size: 15px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px;
  margin-top: 16px;
  box-shadow: var(--shadow-sm);
}

/* ──────────────────────────────────────────────────────────
   FORMS (inputs, labels, buttons)
   ────────────────────────────────────────────────────────── */
label { display: block; margin: 10px 0; font-size: 13px; color: var(--fg-2); font-weight: 500; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--paper-tint);
  color: var(--fg-1);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font: inherit; font-family: var(--font-sans);
  margin-top: 4px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast), background var(--dur-fast);
}
input:hover, select:hover, textarea:hover { border-color: var(--ink-200); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--stu-500);
  background: var(--paper);
  box-shadow: var(--shadow-focus);
}
textarea { resize: vertical; min-height: 80px; }

input[type="tel"], input[type="time"] { font-family: var(--font-mono); font-size: 13px; }

/* Radio & checkbox groups */
.cf-radio-group, .cf-checkbox-row { margin: 10px 0 4px; }
.cf-radio-group .cf-group-label,
.cf-checkbox-row .cf-group-label {
  font-size: 13px; color: var(--fg-2); margin-bottom: 8px;
  display: block; font-weight: 500;
}
.cf-radio-option, .cf-checkbox-option {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; margin: 4px 0;
  background: var(--paper-tint); border: 1px solid var(--border);
  border-radius: var(--r-sm); cursor: pointer;
  font-size: 14px; color: var(--fg-1);
  transition: border-color var(--dur-fast), background var(--dur-fast);
}
.cf-radio-option:hover, .cf-checkbox-option:hover {
  border-color: var(--stu-400); background: var(--stu-50);
}
.cf-radio-option input, .cf-checkbox-option input {
  width: 16px; height: 16px; margin: 0; flex-shrink: 0;
  accent-color: var(--stu-500);
}

/* Buttons */
button {
  background: var(--stu-500);
  color: #fff; border: 1px solid transparent;
  padding: 9px 16px; border-radius: var(--r-sm);
  font: inherit; font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  letter-spacing: -0.005em;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.18);
  transition: background var(--dur-fast), box-shadow var(--dur-fast), transform var(--dur-fast);
}
button:hover { background: var(--stu-600); box-shadow: var(--shadow-md); }
button:active { transform: translateY(1px); }
button:focus-visible { outline: none; box-shadow: var(--shadow-focus); }

button[type="button"] {
  background: var(--surface); color: var(--fg-1);
  border-color: var(--border-strong); box-shadow: var(--shadow-xs);
}
button[type="button"]:hover { border-color: var(--fg-3); background: var(--paper-tint); color: var(--fg-1); }

.btn-primary {
  background: var(--stu-500); color: #fff; border: none;
  padding: 10px 20px; border-radius: var(--r-sm);
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:hover { background: var(--stu-600); }

.btn-cancel {
  background: transparent; color: var(--fg-3);
  border: 1px solid var(--border); padding: 9px 16px;
  border-radius: var(--r-sm);
}
.btn-cancel:hover { background: var(--ink-100); color: var(--fg-1); }

.btn-danger {
  background: var(--err-50); color: var(--err-700);
  border: 1px solid rgba(220, 38, 38, 0.25);
  font-size: 12px; padding: 6px 12px;
  box-shadow: none;
}
.btn-danger:hover { background: #fecaca; box-shadow: none; }

.btn-sm { padding: 6px 12px; font-size: 12px; }

.btn-ok { background: var(--stu-500); color: #fff; }

/* Dialogs */
dialog {
  background: var(--surface); color: var(--fg-1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
  max-width: 460px; width: 92%;
  box-shadow: var(--shadow-lg);
  max-height: 92vh; overflow-y: auto;
}
dialog h3 {
  font-size: 17px; letter-spacing: -0.01em;
  margin: 0 0 8px;
}
dialog::backdrop { background: rgba(17, 19, 16, 0.42); backdrop-filter: blur(4px); }

.actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }

/* Tables (generic) */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--ink-100); vertical-align: middle; }
th {
  color: var(--fg-3); font-weight: 700; font-size: 11px;
  text-transform: uppercase; letter-spacing: .06em;
  background: var(--paper-tint); border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tr:last-child td { border-bottom: none; }

/* ──────────────────────────────────────────────────────────
   AUTH PAGES (login, register)
   ────────────────────────────────────────────────────────── */
.auth-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
  background:
    radial-gradient(60% 40% at 30% 20%, rgba(58,96,245,0.06), transparent 70%),
    radial-gradient(50% 40% at 80% 80%, rgba(240,122,36,0.05), transparent 70%),
    var(--bg);
}
.auth-card {
  width: 100%; max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 40px 36px 32px;
  box-shadow: var(--shadow-lg);
}
.auth-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700; color: var(--fg-1);
  margin-bottom: 8px; letter-spacing: -0.02em;
}
.auth-logo img { width: 32px; height: 32px; }
.auth-sub  { font-size: 14px; color: var(--fg-3); margin-bottom: 28px; }
.auth-card label { color: var(--fg-2); font-size: 13px; font-weight: 500; }
.auth-card input { margin-top: 6px; }
.auth-submit {
  width: 100%; margin-top: 22px; padding: 12px;
  font-size: 14px; font-weight: 600;
}
.auth-footer {
  margin-top: 22px; text-align: center;
  font-size: 13px; color: var(--fg-3);
}
.auth-footer a { color: var(--stu-600); text-decoration: none; font-weight: 600; }
.auth-footer a:hover { text-decoration: underline; }

.org-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--r-pill);
  background: var(--stu-50); color: var(--stu-700);
  font-size: 12px; font-weight: 600; margin-bottom: 14px;
  border: 1px solid rgba(58,96,245,0.2);
}
#setup-org-field { display: none; }

/* ──────────────────────────────────────────────────────────
   CALENDAR (public booking)
   ────────────────────────────────────────────────────────── */
.cal-panel { padding: 18px 22px 22px; }
.cal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.cal-month-label {
  font-weight: 600; font-size: 15px;
  letter-spacing: -0.01em; color: var(--fg-1);
}
.cal-nav {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--fg-3); padding: 6px 8px; border-radius: var(--r-sm);
  display: inline-flex; align-items: center; justify-content: center;
  line-height: 1; box-shadow: none;
}
.cal-nav:hover {
  color: var(--stu-600); border-color: var(--stu-400);
  background: var(--stu-50); box-shadow: none;
}

.cal-weekdays {
  display: grid; grid-template-columns: repeat(7, 1fr);
  text-align: center; font-size: 10px; font-weight: 700;
  color: var(--fg-3); letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-day {
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid transparent;
  color: var(--fg-1); border-radius: var(--r-sm);
  font-size: 13px; font-weight: 500; cursor: pointer; padding: 0;
  font-family: var(--font-sans);
  box-shadow: none;
  transition: all var(--dur-fast) var(--ease-out);
}
.cal-day:hover:not(:disabled):not(.cal-day--selected):not(.cal-day--past):not(.cal-day--no-slots) {
  background: var(--stu-100); color: var(--stu-700);
  border-color: transparent; box-shadow: none;
}
.cal-day.cal-day--empty { cursor: default; visibility: hidden; }
.cal-day.cal-day--no-slots {
  color: var(--ink-300); background: var(--ink-100);
  cursor: not-allowed; box-shadow: none;
}
.cal-day.cal-day--past {
  color: var(--ink-300); background: var(--ink-100);
  text-decoration: line-through; cursor: default;
  font-weight: 400; box-shadow: none;
}
.cal-day.cal-day--today {
  border-color: var(--stu-500); color: var(--stu-700);
  background: var(--stu-50); font-weight: 700;
}
.cal-day.cal-day--selected {
  background: var(--stu-500); color: #fff;
  border-color: var(--stu-500); font-weight: 700;
  box-shadow: 0 2px 8px rgba(58,96,245,0.35);
}
.cal-day.cal-day--selected:hover {
  background: var(--stu-600); border-color: var(--stu-600);
}

.cal-grid.cal-loading { position: relative; pointer-events: none; }
.cal-grid.cal-loading::after {
  content: ""; position: absolute; inset: 0;
  border-radius: var(--r-sm);
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.6) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 1.2s ease-in-out infinite;
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

/* ──────────────────────────────────────────────────────────
   SLOTS (public booking)
   ────────────────────────────────────────────────────────── */
.slots-header {
  display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px;
}
.slots-header h2 {
  margin: 0; font-size: 16px; letter-spacing: -0.01em;
}
.slots-meta {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--fg-3);
  font-variant-numeric: tabular-nums;
}
.slots-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 8px;
}
.slot-btn {
  background: var(--paper-tint); border: 1px solid var(--border);
  color: var(--fg-2); padding: 11px 8px; border-radius: var(--r-sm);
  cursor: pointer;
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  font-size: 13px; font-weight: 600;
  box-shadow: none;
  transition: all var(--dur-fast) var(--ease-out);
}
.slot-btn.slot-available {
  border-color: rgba(31, 169, 90, 0.3);
  color: var(--ok-700);
  background: var(--ok-50);
}
.slot-btn.slot-available:hover {
  border-color: var(--ok-500);
  background: #d7f6e5;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.slot-btn.slot-taken {
  border-color: var(--border);
  color: var(--fg-4);
  background: var(--ink-100);
  text-decoration: line-through;
  cursor: not-allowed;
  box-shadow: none;
}

/* ──────────────────────────────────────────────────────────
   CONFIRMATION OVERLAY (success state)
   ────────────────────────────────────────────────────────── */
.conf-overlay {
  position: fixed; inset: 0;
  background: rgba(247, 247, 245, 0.94);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px; z-index: 200;
  animation: fade-in 0.35s ease both;
}
.conf-overlay.hidden { display: none; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.conf-card {
  width: 100%; max-width: 460px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 48px 38px 36px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: slide-up 0.5s var(--ease-out) both;
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
.conf-check-wrap {
  position: relative; width: 72px; height: 72px; margin: 0 auto 28px;
}
.conf-check-glow {
  position: absolute; inset: -12px; border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 169, 90, 0.18) 0%, transparent 70%);
  animation: glow-pulse 2.4s ease-in-out infinite;
}
@keyframes glow-pulse {
  0%, 100% { transform: scale(1);   opacity: 0.7; }
  50%      { transform: scale(1.12); opacity: 1; }
}
.conf-checkmark { width: 72px; height: 72px; display: block; }
.chk-circle {
  stroke: var(--ok-500); stroke-width: 2;
  stroke-dasharray: 151; stroke-dashoffset: 151;
  animation: draw 0.55s ease forwards;
}
.chk-tick {
  stroke: var(--ok-500); stroke-width: 3;
  stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 44; stroke-dashoffset: 44;
  animation: draw 0.35s ease 0.5s forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }

.conf-title {
  font-family: var(--font-serif);
  margin: 0 0 8px; font-size: 32px; font-weight: 400;
  letter-spacing: -0.02em; line-height: 1.1;
}
.conf-sub { margin: 0 0 28px; color: var(--fg-3); font-size: 14px; }

.conf-details {
  background: var(--paper-tint);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px 18px; margin-bottom: 24px;
  text-align: left;
}
.conf-detail-row { display: flex; align-items: flex-start; gap: 12px; }
.conf-detail-icon {
  flex-shrink: 0; width: 18px; height: 18px;
  margin-top: 2px; color: var(--fg-3);
}
.conf-date { font-weight: 600; font-size: 15px; margin-bottom: 2px; color: var(--fg-1); }
.conf-time {
  color: var(--fg-3); font-size: 13px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.conf-cta-row { display: flex; gap: 8px; margin-bottom: 20px; }
.conf-btn-cal, .conf-btn-ics {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 11px 12px; border-radius: var(--r-sm);
  font: inherit; font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  border: 1px solid;
  box-shadow: none;
  transition: all var(--dur-fast) var(--ease-out);
}
.conf-btn-cal {
  background: var(--stu-50); color: var(--stu-700);
  border-color: rgba(58,96,245,0.2);
}
.conf-btn-cal:hover { background: var(--stu-100); border-color: var(--stu-400); }
.conf-btn-ics {
  background: var(--surface); color: var(--fg-2);
  border-color: var(--border);
}
.conf-btn-ics:hover { color: var(--fg-1); border-color: var(--ink-300); }

.conf-ref {
  margin: 0 0 20px; font-size: 12px; color: var(--fg-3);
  font-family: var(--font-mono);
}
.conf-ref code { font-size: 12px; letter-spacing: 0.02em; }
.conf-reset {
  background: none; border: none; color: var(--fg-3);
  font: inherit; font-family: var(--font-sans);
  font-size: 13px; cursor: pointer;
  padding: 0; text-decoration: underline;
  text-decoration-color: transparent; box-shadow: none;
  transition: color var(--dur-fast), text-decoration-color var(--dur-fast);
}
.conf-reset:hover {
  color: var(--stu-600);
  text-decoration-color: var(--stu-600);
  background: transparent;
}

/* ──────────────────────────────────────────────────────────
   FINANCE / RESCHEDULE DIALOGS
   ────────────────────────────────────────────────────────── */
#finance-dialog, #reschedule-dialog {
  border: 1px solid var(--border); border-radius: var(--r-lg); padding: 0;
  box-shadow: var(--shadow-lg);
  max-width: 440px; width: 92%;
}
.finance-body { padding: 32px 28px 28px; }
.finance-question {
  font-family: var(--font-serif);
  font-size: 22px; font-weight: 400;
  margin: 0 0 10px; line-height: 1.25;
  letter-spacing: -0.01em; color: var(--fg-1);
}
.finance-sub { font-size: 14px; color: var(--fg-3); margin: 0 0 24px; }

/* ──────────────────────────────────────────────────────────
   ADMIN — SIDEBAR
   ────────────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px; min-width: 240px;
  background: var(--stu-950);
  color: #cdd4e8;
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 100;
  padding: 20px 0;
}
.sidebar-logo {
  display: flex; align-items: center; gap: 10px;
  padding: 0 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  font-size: 18px; font-weight: 700; color: #fff;
  letter-spacing: -0.02em;
}
.sidebar-logo img { width: 28px; height: 28px; border-radius: 8px; }
.sidebar-logo span { color: var(--stu-300); }
.sidebar-nav { flex: 1; padding: 14px 10px; }

.nav-item {
  display: flex; align-items: center; gap: 11px; width: 100%;
  padding: 9px 12px; margin-bottom: 2px;
  border-radius: var(--r-sm);
  background: none; border: none;
  color: #9ba5c1;
  font: inherit; font-family: var(--font-sans);
  font-size: 13px; font-weight: 500;
  cursor: pointer; text-align: left;
  box-shadow: none;
  transition: all var(--dur-fast) var(--ease-out);
}
.nav-item svg { width: 15px; height: 15px; flex-shrink: 0; }
.nav-item:hover { background: rgba(255,255,255,0.05); color: #e9edf7; box-shadow: none; }
.nav-item.active {
  background: var(--stu-600); color: #fff;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.sidebar-user {
  color: #e9edf7; font-size: 13px; font-weight: 600; margin-bottom: 8px;
}
.sidebar-logout {
  background: none;
  border: 1px solid rgba(255,255,255,0.12);
  color: #9ba5c1;
  padding: 7px 12px; border-radius: var(--r-sm);
  font: inherit; font-family: var(--font-sans);
  font-size: 12px; cursor: pointer; width: 100%;
  box-shadow: none;
  transition: all var(--dur-fast);
}
.sidebar-logout:hover {
  background: rgba(255,255,255,0.05); color: #e9edf7;
  border-color: rgba(255,255,255,0.2); box-shadow: none;
}

/* ──────────────────────────────────────────────────────────
   ADMIN — MAIN + PAGE HEADER
   ────────────────────────────────────────────────────────── */
.main {
  margin-left: 240px;
  flex: 1;
  padding: 40px 40px 60px;
  min-width: 0;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade-in 0.25s ease; }

.page-header { margin-bottom: 26px; }
.page-title {
  font-size: 28px; font-weight: 700;
  letter-spacing: -0.02em; margin: 0 0 4px;
  color: var(--fg-1);
}
.page-sub { font-size: 14px; color: var(--fg-3); margin: 0; }

.section-label {
  font-size: 11px; font-weight: 700;
  color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin: 28px 0 12px;
}

/* ──────────────────────────────────────────────────────────
   ADMIN — CARDS
   ────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.card + .card { margin-top: 20px; }
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
}
.card-title {
  font-size: 14px; font-weight: 600;
  margin: 0; color: var(--fg-1);
  letter-spacing: -0.005em;
}
.card-body { padding: 20px; }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; }

/* ──────────────────────────────────────────────────────────
   ADMIN — TABLES
   ────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
.card table th {
  padding: 10px 20px;
}
.card table td {
  padding: 13px 20px;
  border-bottom: 1px solid var(--ink-100);
}
.card tbody tr { transition: background var(--dur-fast); }
.card tbody tr:hover { background: var(--paper-tint); }

.empty-row td {
  text-align: center; padding: 40px;
  color: var(--fg-3); font-size: 13px;
  background: transparent;
}

/* "Next upcoming" row — left accent bar */
tr.proxima td { background: var(--stu-50); }
tr.proxima td:first-child { box-shadow: inset 3px 0 0 var(--stu-500); }

/* ──────────────────────────────────────────────────────────
   BADGES
   ────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
  border: 1px solid transparent;
  font-family: var(--font-sans);
}
.badge-confirmed { background: var(--ok-50);  color: var(--ok-700);  border-color: rgba(31,169,90,0.2); }
.badge-cancelled { background: var(--err-50); color: var(--err-700); border-color: rgba(220,38,38,0.2); }
.badge-active    { background: var(--ok-50);  color: var(--ok-700);  border-color: rgba(31,169,90,0.2); }
.badge-usado     { background: var(--stu-50); color: var(--stu-700); border-color: rgba(58,96,245,0.2); }
.badge-expirado  { background: var(--err-50); color: var(--err-700); border-color: rgba(220,38,38,0.2); }
.badge-admin     { background: var(--stu-50); color: var(--stu-700); border-color: rgba(58,96,245,0.2); }
.badge-member    { background: var(--ink-100); color: var(--fg-3); }

/* CRM link button */
.crm-link {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; color: var(--stu-600);
  text-decoration: none; font-weight: 600;
  padding: 4px 10px; border-radius: var(--r-sm);
  background: var(--stu-50);
  border: 1px solid rgba(58,96,245,0.15);
  transition: all var(--dur-fast);
}
.crm-link:hover {
  background: var(--stu-100);
  border-color: rgba(58,96,245,0.3);
}

/* ──────────────────────────────────────────────────────────
   KPI STAT CARDS (admin home)
   ────────────────────────────────────────────────────────── */
.stats-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 14px; margin-bottom: 24px;
}
@media (max-width: 900px) { .stats-row { grid-template-columns: 1fr; } }

.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 18px 20px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base);
}
.stat-card:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }

.stat-icon {
  width: 42px; height: 42px;
  border-radius: var(--r-md);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg { width: 18px; height: 18px; }
.stat-icon-blue  { background: var(--stu-50);  color: var(--stu-600); }
.stat-icon-green { background: var(--ok-50);   color: var(--ok-700); }
.stat-icon-amber { background: var(--warm-50); color: var(--warm-700); }

.stat-body { flex: 1; min-width: 0; }
.stat-value {
  font-size: 28px; font-weight: 800;
  color: var(--fg-1); line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 12px; color: var(--fg-3);
  margin-top: 4px; font-weight: 500;
}

/* ──────────────────────────────────────────────────────────
   ADMIN DASHBOARD CALENDAR
   ────────────────────────────────────────────────────────── */
.acal-weekdays {
  display: grid; grid-template-columns: repeat(7, 1fr);
  padding: 10px 20px 6px; border-bottom: 1px solid var(--border);
  background: var(--paper-tint);
}
.acal-weekdays span {
  text-align: center; font-size: 10px; font-weight: 700;
  color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.acal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr);
  padding: 12px 20px 18px; gap: 4px;
}
.acal-cell {
  aspect-ratio: 1; border-radius: var(--r-sm);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  position: relative;
  cursor: default; font-size: 13px; color: var(--fg-1);
  border: 1px solid transparent;
  transition: all var(--dur-fast);
}
.acal-cell.acal-has { cursor: pointer; background: var(--stu-50); border-color: rgba(58,96,245,0.15); }
.acal-cell.acal-has:hover { background: var(--stu-100); border-color: var(--stu-400); }
.acal-cell.acal-empty { opacity: 0; pointer-events: none; }
.acal-cell.acal-today .acal-num {
  background: var(--stu-500); color: #fff;
  border-radius: 50%;
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.acal-cell.acal-selected {
  background: var(--stu-100);
  border-color: var(--stu-500);
  box-shadow: 0 0 0 1px var(--stu-500);
}
.acal-num { font-size: 13px; line-height: 1; font-weight: 500; }
.acal-badge {
  position: absolute; bottom: 4px; right: 4px;
  min-width: 16px; height: 16px; border-radius: var(--r-pill);
  font-size: 10px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 4px; line-height: 1;
  font-family: var(--font-mono);
}
.acal-badge-up   { background: var(--ok-500); color: #fff; }
.acal-badge-past { background: var(--ink-200); color: var(--fg-3); }

.day-detail-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  background: var(--stu-50);
}

/* Booking cards (day detail) — empresarial look */
.bk-cards-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px; padding: 16px 20px;
}
.bk-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--stu-500);
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--dur-fast), transform var(--dur-fast);
}
.bk-card:hover { box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.bk-card.cancelled { border-left-color: var(--ink-300); opacity: 0.75; }
.bk-time {
  font-size: 15px; font-weight: 700;
  color: var(--fg-1);
  font-variant-numeric: tabular-nums;
  min-width: 46px; text-align: center;
  letter-spacing: -0.01em;
}
.bk-info { flex: 1; min-width: 0; line-height: 1.3; }
.bk-info strong { display: block; font-size: 13px; font-weight: 600; color: var(--fg-1); }
.bk-phone { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); margin-top: 1px; }
.bk-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }

/* Table row "next" (same as proxima, kept for bookings table) */
.stu-time-cell { display: flex; flex-direction: column; line-height: 1.25; }
.stu-time-big {
  font-size: 14px; font-weight: 700; color: var(--fg-1);
  font-variant-numeric: tabular-nums;
}
.stu-time-date { font-size: 11px; color: var(--fg-3); }

/* ──────────────────────────────────────────────────────────
   TOASTS — empresarial (blanco + accent lateral)
   ────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 9999; pointer-events: none;
}
.toast {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 11px 16px 11px 14px;
  min-width: 260px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--stu-500);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  font-size: 13px; font-weight: 500; color: var(--fg-1);
  animation: toast-in 0.25s var(--ease-out) both;
  pointer-events: auto; max-width: 360px;
}
.toast-success { border-left-color: var(--ok-500); color: var(--fg-1); background: var(--surface); }
.toast-error   { border-left-color: var(--err-500); color: var(--fg-1); background: var(--surface); }
.toast-info    { border-left-color: var(--stu-500); color: var(--fg-1); background: var(--surface); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(8px); }
}

/* ──────────────────────────────────────────────────────────
   FORM FIELDS — save footer
   ────────────────────────────────────────────────────────── */
.fields-save-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: var(--paper-tint);
  border-top: 1px solid var(--border);
  font-size: 13px; color: var(--fg-3);
}
.fields-save-bar.has-pending {
  background: var(--warm-50); border-color: #fde3b8; color: var(--warm-700);
}
.fields-save-actions { display: flex; gap: 8px; }
.btn-save {
  background: var(--ink-200); color: var(--fg-3);
  border: none; padding: 7px 16px; border-radius: var(--r-sm);
  font: inherit; font-family: var(--font-sans);
  font-size: 13px; cursor: not-allowed;
  box-shadow: none;
  transition: all var(--dur-fast);
}
.btn-save.active {
  background: var(--ok-500); color: #fff; cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.btn-save.active:hover { background: var(--ok-700); }
.btn-save:disabled { opacity: 0.6; }
.btn-discard {
  display: none; background: none;
  border: 1px solid var(--warm-500); color: var(--warm-700);
  padding: 6px 14px; border-radius: var(--r-sm);
  font: inherit; font-size: 13px; cursor: pointer;
  box-shadow: none;
}
.fields-save-bar.has-pending .btn-discard { display: inline-flex; }
.btn-discard:hover { background: var(--warm-50); box-shadow: none; }
.field-row-pending td { background: var(--warm-50) !important; }
.field-row-pending td:first-child { border-left: 3px solid var(--warm-500); }

/* ──────────────────────────────────────────────────────────
   LEAD LINK RESULT (create link success)
   ────────────────────────────────────────────────────────── */
.link-result {
  margin-top: 14px;
  background: var(--ok-50);
  border: 1px solid rgba(31,169,90,0.25);
  border-radius: var(--r-md); overflow: hidden;
}
.link-result-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; gap: 16px; flex-wrap: wrap;
}
.link-result-label {
  font-size: 11px; font-weight: 700;
  color: var(--ok-700);
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.link-url-text {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--ok-700);
  word-break: break-all; display: block;
}
.link-copy-btn {
  background: var(--ok-500); color: #fff; border: none;
  padding: 9px 18px; border-radius: var(--r-sm);
  font: inherit; font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  cursor: pointer; white-space: nowrap; flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  transition: background var(--dur-fast);
}
.link-copy-btn:hover { background: var(--ok-700); }

/* ──────────────────────────────────────────────────────────
   ADD-FORM (config tab forms)
   ────────────────────────────────────────────────────────── */
.add-form {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end;
}
.add-form label {
  display: flex; flex-direction: column; gap: 5px;
  font-size: 12px; font-weight: 600; color: var(--fg-3);
  margin: 0;
}
.add-form input, .add-form select {
  padding: 9px 12px; min-width: 140px;
  margin-top: 0;
}
.add-form button {
  padding: 9px 18px; font-size: 13px;
  align-self: flex-end;
}

/* Filter chips */
.filter-chips { display: flex; gap: 6px; }
.chip {
  font: inherit; font-family: var(--font-sans);
  font-size: 12px; font-weight: 600;
  padding: 5px 12px; border-radius: var(--r-pill);
  background: var(--ink-100); color: var(--fg-3);
  border: 1px solid transparent; cursor: pointer;
  box-shadow: none;
  transition: all var(--dur-fast);
}
.chip:hover { background: var(--ink-150); box-shadow: none; }
.chip.active {
  background: var(--stu-50); color: var(--stu-700);
  border-color: rgba(58,96,245,0.2);
}

/* ──────────────────────────────────────────────────────────
   INVITE LINK + MEMBERS EXTRAS
   ────────────────────────────────────────────────────────── */
.invite-link {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--stu-600);
  word-break: break-all;
}
.me-tag {
  font-size: 11px; color: var(--fg-3);
  margin-left: 6px; font-weight: 400;
}

/* ──────────────────────────────────────────────────────────
   RESPONSIVE
   ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 24px 16px 60px; }
  .fields-layout { grid-template-columns: 1fr !important; }
}

/* Form preview (Formulario tab) */
.fields-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-preview {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 24px;
  box-shadow: var(--shadow-sm);
}
.preview-title {
  font-size: 11px; font-weight: 700;
  color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin: 0 0 16px;
}
.preview-field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.preview-field label {
  font-size: 13px; font-weight: 500; color: var(--fg-1);
  margin: 0;
}
.preview-field label span { color: var(--err-500); margin-left: 2px; }
.preview-field input,
.preview-field textarea,
.preview-field select {
  padding: 9px 11px; border: 1px solid var(--border); border-radius: var(--r-sm);
  font-size: 13px; background: var(--paper-tint);
  color: var(--fg-3); pointer-events: none; resize: none;
  width: 100%; margin-top: 0;
}
.preview-empty {
  font-size: 13px; color: var(--fg-3);
  text-align: center; padding: 32px 0;
}