/* Viewlo v2 - Design tokens (improved contrast & visibility) */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&display=swap');

:root {
  /* Primary - slightly brighter blue, stronger for legibility on white */
  --vl-blue: #2453ff;
  --vl-blue-hover: #1a3fd6;
  --vl-blue-pressed: #142fa0;
  --vl-blue-light: #eaf0ff;
  --vl-blue-tint: #f5f8ff;

  /* Neutrals */
  --vl-navy: #0b1224;
  --vl-slate-900: #1a2236;
  --vl-slate-800: #2a3552;
  --vl-slate-700: #3b4763;
  --vl-slate-600: #56607a;
  --vl-slate-500: #6f7891;
  --vl-slate-400: #94a0b8;
  --vl-slate-300: #c0c9da;
  --vl-slate-200: #dde2ec;
  --vl-slate-100: #eef1f7;
  --vl-slate-50:  #f7f9fc;
  --vl-white: #ffffff;

  /* Status - deeper, more saturated */
  --vl-green: #15a753;
  --vl-green-light: #e6f7ec;
  --vl-red: #e23636;
  --vl-red-light: #fdecec;
  --vl-amber: #d97706;
  --vl-amber-light: #fff4e0;

  /* Surfaces */
  --vl-card-bg: #ffffff;
  --vl-page-bg: #f4f6fb;
  --vl-sidebar-bg: #0b1224;
  --vl-viewer-bg: #000000;

  --vl-font-body: 'DM Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --vl-font-display: 'DM Sans', system-ui, sans-serif;
  --vl-font-mono: 'SF Mono', 'Consolas', 'Courier New', monospace;

  --vl-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --vl-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --vl-shadow-md: 0 6px 18px rgba(15, 23, 42, 0.09);
  --vl-shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.15);
  --vl-shadow-xl: 0 24px 60px rgba(15, 23, 42, 0.18);
  --vl-shadow-blue: 0 6px 22px rgba(36, 83, 255, 0.32);

  --vl-radius-card: 14px;
  --vl-radius-btn: 10px;
  --vl-radius-input: 10px;
  --vl-radius-badge: 6px;
  --vl-radius-modal: 18px;

  --vl-focus-ring: 0 0 0 3px rgba(36, 83, 255, 0.28);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }
html, body {
  margin: 0;
  padding: 0;
  font-family: var(--vl-font-body);
  color: var(--vl-slate-900);
  background: var(--vl-page-bg);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--vl-blue);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}
a:hover { color: var(--vl-blue-hover); text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3, h4 { color: var(--vl-navy); font-weight: 700; letter-spacing: -0.4px; }
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 17px; }
h4 { font-size: 14px; }
p  { color: var(--vl-slate-700); }

code {
  background: var(--vl-slate-100);
  padding: 1px 6px;
  border-radius: 5px;
  font-family: var(--vl-font-mono);
  font-size: 0.9em;
  color: var(--vl-navy);
}

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

/* Focus ring - visible across all interactive elements */
:focus-visible {
  outline: none;
  box-shadow: var(--vl-focus-ring);
  border-radius: 6px;
}

/* Buttons -------------------------------------------------------------- */
.btn {
  padding: 11px 20px;
  border-radius: var(--vl-radius-btn);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.05s ease, background-color 0.15s ease,
              box-shadow 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  font-family: var(--vl-font-body);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
  line-height: 1;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { box-shadow: var(--vl-focus-ring); }
.btn:disabled {
  opacity: 0.55 !important;
  cursor: not-allowed !important;
  transform: none !important;
}

.btn-primary {
  background: var(--vl-blue);
  color: var(--vl-white);
  box-shadow: var(--vl-shadow-blue);
}
.btn-primary:hover { background: var(--vl-blue-hover); color: var(--vl-white); text-decoration: none; }
.btn-primary:active { background: var(--vl-blue-pressed); }

.btn-secondary {
  background: var(--vl-white);
  color: var(--vl-navy);
  border-color: var(--vl-slate-300);
  box-shadow: var(--vl-shadow-xs);
}
.btn-secondary:hover { background: var(--vl-slate-50); border-color: var(--vl-slate-400); color: var(--vl-navy); text-decoration: none; }

.btn-danger {
  background: var(--vl-red);
  color: var(--vl-white);
  box-shadow: 0 4px 14px rgba(226, 54, 54, 0.28);
}
.btn-danger:hover { background: #c62929; color: var(--vl-white); text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--vl-slate-800);
  border-color: var(--vl-slate-300);
}
.btn-ghost:hover { background: var(--vl-slate-100); color: var(--vl-navy); text-decoration: none; }

.btn-link {
  background: transparent;
  color: var(--vl-blue);
  padding: 6px 8px;
  border: none;
}
.btn-link:hover { background: var(--vl-blue-light); text-decoration: none; }

.btn-sm { padding: 7px 13px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 14px 26px; font-size: 15px; border-radius: 12px; }
.btn-block { display: flex; width: 100%; }

/* Cards ---------------------------------------------------------------- */
.card {
  background: var(--vl-card-bg);
  border-radius: var(--vl-radius-card);
  box-shadow: var(--vl-shadow-sm);
  border: 1px solid var(--vl-slate-100);
  overflow: hidden;
}
.card-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--vl-slate-100);
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--vl-navy);
}
.card-body { padding: 22px; }

/* Forms ---------------------------------------------------------------- */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--vl-slate-800);
  margin-bottom: 7px;
  letter-spacing: 0.2px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--vl-slate-200);
  border-radius: var(--vl-radius-input);
  font-size: 14px;
  font-family: var(--vl-font-body);
  background: var(--vl-white);
  color: var(--vl-slate-900);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--vl-slate-400); }
.form-textarea { min-height: 110px; resize: vertical; line-height: 1.5; }
.form-input:hover, .form-select:hover, .form-textarea:hover { border-color: var(--vl-slate-300); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--vl-blue);
  box-shadow: var(--vl-focus-ring);
}

.form-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--vl-slate-800);
  cursor: pointer;
  user-select: none;
}
.form-checkbox input[type=checkbox] {
  width: 18px; height: 18px;
  accent-color: var(--vl-blue);
  cursor: pointer;
}
.form-help {
  font-size: 12px;
  color: var(--vl-slate-500);
  margin-top: 5px;
  line-height: 1.5;
}

/* Badges --------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--vl-radius-badge);
  font-size: 11px;
  font-weight: 700;
  text-transform: capitalize;
  letter-spacing: 0.3px;
  line-height: 1.2;
}
.badge-published { background: var(--vl-green-light); color: #0c7a3c; }
.badge-draft     { background: var(--vl-slate-100); color: var(--vl-slate-700); }
.badge-cafe      { background: #fff1d8; color: #8a4a00; }
.badge-campus    { background: #d6e6ff; color: #163a8c; }
.badge-pg        { background: #ffdfee; color: #99113c; }
.badge-venue     { background: #ecdcff; color: #5a1496; }
.badge-featured  { background: #fff1d8; color: #8a4a00; }
.badge-role-user        { background: var(--vl-slate-100); color: var(--vl-slate-700); }
.badge-role-admin       { background: #d6e6ff; color: #163a8c; }
.badge-role-super_admin { background: #fff1d8; color: #8a4a00; }

/* Modal ---------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 18, 36, 0.55);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50000;
  padding: 20px;
}
.modal-overlay.is-open { display: flex; animation: overlayIn 0.2s ease; }
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--vl-white);
  border-radius: var(--vl-radius-modal);
  padding: 28px;
  width: min(480px, 100%);
  box-shadow: var(--vl-shadow-xl);
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: none; } }
.modal h2 { margin: 0 0 14px; font-size: 20px; color: var(--vl-navy); }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* Toast ---------------------------------------------------------------- */
.toast-stack {
  position: fixed;
  top: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 60000;
  pointer-events: none;
}
.toast {
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: var(--vl-shadow-md);
  border: 1px solid transparent;
  animation: toastIn 0.25s ease;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 220px;
  max-width: 360px;
}
.toast-success { background: var(--vl-green-light); color: #0c7a3c; border-color: #b6e8c8; }
.toast-error   { background: var(--vl-red-light); color: #b21a1a; border-color: #f4b6b6; }
.toast-info    { background: var(--vl-blue-light); color: var(--vl-blue-pressed); border-color: #c6d4ff; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: none; }
}

/* Utility -------------------------------------------------------------- */
.muted   { color: var(--vl-slate-500); }
.dim     { color: var(--vl-slate-600); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.center  { text-align: center; }
.flex    { display: flex; }
.gap-2   { gap: 8px; }
.gap-3   { gap: 12px; }
.gap-4   { gap: 16px; }
.mt-2    { margin-top: 8px; }
.mt-3    { margin-top: 12px; }
.mt-4    { margin-top: 16px; }
.mt-6    { margin-top: 24px; }
.mb-2    { margin-bottom: 8px; }
.mb-4    { margin-bottom: 16px; }

.skeleton {
  background: linear-gradient(90deg, var(--vl-slate-100) 0%, var(--vl-slate-200) 50%, var(--vl-slate-100) 100%);
  background-size: 200% 100%;
  animation: skel 1.2s infinite;
  border-radius: 8px;
}
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Smooth scrollbar in dark panels */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--vl-slate-300); border-radius: 999px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--vl-slate-400); background-clip: content-box; border: 2px solid transparent; }