/* =============================================================================
   Components: buttons, header, footer, cards, forms, tables, feedback
   ========================================================================== */

/* ------------------------------------------------------------- buttons --- */

.btn {
  --btn-bg: var(--primary);
  --btn-fg: #fff;
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.35rem;
  min-height: 44px;
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 650;
  line-height: 1.1;
  letter-spacing: 0.005em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease),
    background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}
.btn:hover { color: var(--btn-fg); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn[disabled], .btn[aria-disabled='true'], .btn.is-loading {
  opacity: 0.6; cursor: not-allowed; transform: none;
}

.btn-primary { box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--primary-strong); box-shadow: var(--shadow-lg); }

.btn-gold {
  --btn-bg: linear-gradient(135deg, var(--gold-500), var(--gold-700));
  --btn-fg: #221803;
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover { --btn-bg: linear-gradient(135deg, var(--gold-400), var(--gold-600)); }

.btn-outline { --btn-bg: transparent; --btn-fg: var(--primary-strong); --btn-border: var(--line-strong); }
.btn-outline:hover { --btn-bg: var(--green-50); --btn-border: var(--green-200); }

.btn-ghost { --btn-bg: transparent; --btn-fg: var(--ink-700); --btn-border: transparent; }
.btn-ghost:hover { --btn-bg: rgba(14, 107, 73, 0.08); --btn-fg: var(--primary-strong); }

.btn-invert { --btn-bg: rgba(255, 255, 255, 0.1); --btn-fg: #fff; --btn-border: rgba(255, 255, 255, 0.4); }
.btn-invert:hover { --btn-bg: rgba(255, 255, 255, 0.18); }

.btn-danger { --btn-bg: var(--danger-700); --btn-fg: #fff; }
.btn-danger:hover { --btn-bg: #96201a; }
.btn-danger-soft { --btn-bg: var(--danger-100); --btn-fg: var(--danger-700); --btn-border: rgba(179, 38, 30, 0.2); }
.btn-success { --btn-bg: var(--success-700); --btn-fg: #fff; }
.btn-success:hover { --btn-bg: #0c6742; }

.btn-lg { padding: 0.95rem 1.85rem; font-size: var(--text-md); min-height: 52px; }
.btn-sm { padding: 0.44rem 0.9rem; min-height: 36px; font-size: var(--text-sm); border-radius: var(--radius-pill); }
.btn-block { width: 100%; }
.btn-square { padding: 0.5rem; min-height: 38px; width: 38px; border-radius: var(--radius-sm); }

.btn.is-loading { position: relative; color: transparent !important; }
.btn.is-loading::after {
  content: '';
  position: absolute;
  width: 17px; height: 17px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  color: var(--btn-fg);
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-group { display: inline-flex; flex-wrap: wrap; gap: var(--space-2); }
.btn .icon { width: 1.05em; height: 1.05em; flex: none; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-weight: 650; text-decoration: none; color: var(--primary-strong);
}
.link-arrow svg { transition: transform var(--dur) var(--ease); width: 1em; height: 1em; }
.link-arrow:hover svg { transform: translateX(4px); }

/* -------------------------------------------------------------- header --- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: color-mix(in srgb, var(--ivory) 88%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck {
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--ivory) 96%, transparent);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  height: var(--header-h);
}

.brand { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; color: inherit; flex: none; }
.brand img { width: 44px; height: 44px; border-radius: var(--radius-sm); flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-display); font-size: 1.02rem; font-weight: 700; color: var(--green-900); letter-spacing: -0.01em; }
.brand-tag { font-size: 0.63rem; letter-spacing: 0.19em; text-transform: uppercase; color: var(--accent-strong); font-weight: 700; }

.main-nav { display: flex; align-items: center; gap: 0.15rem; margin-inline: auto; }
.main-nav a {
  position: relative;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--ink-700);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.main-nav a:hover { color: var(--primary-strong); background: rgba(14, 107, 73, 0.07); }
.main-nav a[aria-current='page'] { color: var(--primary-strong); }
.main-nav a[aria-current='page']::after {
  content: '';
  position: absolute;
  left: 0.8rem; right: 0.8rem; bottom: 0.28rem;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-700));
}
.header-actions { display: flex; align-items: center; gap: var(--space-2); flex: none; }

.nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: var(--green-900); }
.nav-toggle:hover { background: rgba(14, 107, 73, 0.08); }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ''; display: block; width: 21px; height: 2px; border-radius: 2px; background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle span::before { transform: translateY(-6.5px); }
.nav-toggle span::after { transform: translateY(4.5px); }
body.nav-open .nav-toggle span { transform: rotate(45deg); }
body.nav-open .nav-toggle span::before { opacity: 0; }
body.nav-open .nav-toggle span::after { transform: rotate(-90deg); }

@media (max-width: 1040px) {
  .nav-toggle { display: inline-flex; }
  .header-inner { justify-content: space-between; }
  .main-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    margin: 0;
    padding: var(--space-4) clamp(1.1rem, 4vw, 2.5rem) var(--space-6);
    background: var(--ivory);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-14px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    z-index: var(--z-drawer);
  }
  body.nav-open .main-nav { opacity: 1; transform: none; pointer-events: auto; }
  .main-nav a { padding: 0.85rem 0.6rem; font-size: var(--text-md); border-bottom: 1px solid var(--border); border-radius: 0; }
  .main-nav a[aria-current='page']::after { display: none; }
  .main-nav .nav-cta { margin-top: var(--space-4); }
  .header-actions .btn-outline { display: none; }
}
@media (max-width: 560px) {
  .brand-tag { display: none; }
  .header-actions .btn { padding-inline: 1rem; }
}

.topbar-note {
  background: linear-gradient(100deg, var(--green-900), var(--green-800) 60%, var(--green-700));
  color: rgba(255, 255, 255, 0.94);
  font-size: var(--text-sm);
  text-align: center;
  padding: 0.45rem 1rem;
}
.topbar-note a { color: var(--gold-300); text-decoration: underline; text-underline-offset: 2px; }
.topbar-note a:hover { color: var(--gold-100); }

/* -------------------------------------------------------------- footer --- */

.site-footer {
  margin-top: auto;
  background: linear-gradient(180deg, var(--green-950), #03190f);
  color: rgba(255, 255, 255, 0.76);
  font-size: var(--text-base);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute; inset-inline: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold-700), var(--gold-400), var(--gold-700));
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: clamp(1.75rem, 1rem + 2.5vw, 3.5rem);
  padding-block: clamp(2.75rem, 2rem + 3vw, 4.5rem);
}
.site-footer h4 {
  color: #fff; font-family: var(--font-body); font-size: var(--text-xs);
  text-transform: uppercase; letter-spacing: var(--tracking-wide); font-weight: 700;
  margin-bottom: var(--space-4);
}
.footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { color: rgba(255, 255, 255, 0.74); text-decoration: none; }
.footer-links a:hover { color: var(--gold-300); }
.footer-brand .brand-name { color: #fff; font-size: 1.1rem; }
.footer-brand .brand-tag { color: var(--gold-400); }
.footer-about { margin-top: var(--space-4); max-width: 38ch; line-height: 1.7; }
.footer-contact { margin-top: var(--space-4); display: flex; flex-direction: column; gap: 0.5rem; font-size: var(--text-sm); }
.footer-contact a { color: rgba(255, 255, 255, 0.82); text-decoration: none; }
.footer-contact a:hover { color: var(--gold-300); }
.social-row { display: flex; gap: 0.55rem; margin-top: var(--space-5); flex-wrap: wrap; }
.social-btn {
  width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-pill); border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.86); transition: all var(--dur-fast) var(--ease); text-decoration: none;
}
.social-btn:hover { background: var(--gold-600); border-color: var(--gold-600); color: #1c1403; transform: translateY(-2px); }
.social-btn svg { width: 18px; height: 18px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-block: var(--space-4) var(--space-5);
  display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-5);
  align-items: center; justify-content: space-between;
  font-size: var(--text-sm); color: rgba(255, 255, 255, 0.6);
}
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.footer-bottom a { color: rgba(255, 255, 255, 0.68); text-decoration: none; }
.footer-bottom a:hover { color: var(--gold-300); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.whatsapp-fab {
  position: fixed;
  right: clamp(0.9rem, 2vw, 1.6rem);
  bottom: clamp(0.9rem, 2vw, 1.6rem);
  z-index: 55;
  width: 54px; height: 54px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-pill);
  background: #1faf54;
  color: #fff;
  box-shadow: 0 14px 30px -10px rgba(31, 175, 84, 0.6);
  transition: transform var(--dur) var(--ease);
}
.whatsapp-fab:hover { transform: scale(1.06); color: #fff; }
.whatsapp-fab svg { width: 27px; height: 27px; }
@media print { .whatsapp-fab { display: none; } }

/* --------------------------------------------------------------- cards --- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.15rem, 0.9rem + 0.6vw, 1.6rem);
  box-shadow: var(--shadow-xs);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--green-200); }
.card-flush { padding: 0; overflow: hidden; }
.card-quiet { background: var(--bg-alt); border-color: transparent; box-shadow: none; }
.card-outline { background: transparent; box-shadow: none; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-4); }
.card-head h3 { font-size: var(--text-lg); }
.card-title-row { display: flex; align-items: center; gap: 0.6rem; }
.card-body { padding: clamp(1.15rem, 0.9rem + 0.6vw, 1.6rem); }
.card-footer {
  padding: var(--space-4) clamp(1.15rem, 0.9rem + 0.6vw, 1.6rem);
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap;
}
.card-media { position: relative; aspect-ratio: 3 / 2; overflow: hidden; background: var(--green-100); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 700ms var(--ease-out); }
.card-hover:hover .card-media img { transform: scale(1.04); }

.icon-badge {
  width: 46px; height: 46px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(140deg, var(--green-100), var(--green-50));
  color: var(--primary-strong);
  border: 1px solid var(--green-200);
}
.icon-badge svg { width: 22px; height: 22px; }
.icon-badge-gold { background: linear-gradient(140deg, var(--gold-100), #fdf8ec); color: var(--gold-800); border-color: var(--gold-300); }

/* ------------------------------------------------------------- badges ---- */

.badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.25rem 0.62rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.02em;
  background: var(--bg-alt);
  color: var(--ink-700);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.badge-plain::before { display: none; }
.badge-success, .badge-verified, .badge-approved, .badge-active, .badge-present, .badge-paid, .badge-completed {
  background: var(--success-100); color: var(--success-700); border-color: rgba(15, 122, 79, 0.2);
}
.badge-warning, .badge-pending, .badge-grace, .badge-late, .badge-due, .badge-upcoming {
  background: var(--warning-100); color: var(--warning-700); border-color: rgba(163, 90, 6, 0.2);
}
.badge-danger, .badge-rejected, .badge-overdue, .badge-suspended, .badge-absent, .badge-cancelled {
  background: var(--danger-100); color: var(--danger-700); border-color: rgba(179, 38, 30, 0.2);
}
.badge-info, .badge-scheduled, .badge-leave, .badge-inactive {
  background: var(--info-100); color: var(--info-700); border-color: rgba(26, 86, 196, 0.18);
}
.badge-gold { background: var(--gold-100); color: var(--gold-800); border-color: var(--gold-300); }
.badge-green { background: var(--green-100); color: var(--green-800); border-color: var(--green-200); }

.pill-row { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.4rem 0.85rem; border-radius: var(--radius-pill);
  background: var(--surface); border: 1px solid var(--border);
  font-size: var(--text-sm); font-weight: 600; color: var(--ink-700);
  text-decoration: none; cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.chip:hover { border-color: var(--green-200); background: var(--green-50); color: var(--primary-strong); }
.chip[aria-pressed='true'], .chip.is-active {
  background: var(--green-800); border-color: var(--green-800); color: #fff;
}

/* --------------------------------------------------------------- forms --- */

.form-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.field { display: flex; flex-direction: column; gap: 0.4rem; min-width: 0; }
.field-full { grid-column: 1 / -1; }
.field > label, .field-label {
  font-size: var(--text-sm); font-weight: 650; color: var(--ink-800);
  display: flex; align-items: center; gap: 0.3rem;
}
.field .req { color: var(--danger-700); }
.field .hint { font-size: var(--text-xs); color: var(--text-soft); }
.field .error-text { font-size: var(--text-xs); color: var(--danger-700); font-weight: 600; display: none; }
.field.has-error .error-text { display: block; }

.input, .select, .textarea {
  width: 100%;
  padding: 0.68rem 0.9rem;
  min-height: 44px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  color: var(--text);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
  appearance: none;
}
.textarea { min-height: 118px; resize: vertical; line-height: 1.6; }
.input::placeholder, .textarea::placeholder { color: var(--text-soft); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--ink-300); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--green-600); box-shadow: var(--ring); background: #fff;
}
.field.has-error .input, .field.has-error .select, .field.has-error .textarea { border-color: var(--danger-700); }
.input:disabled, .select:disabled, .textarea:disabled { background: var(--bg-alt); color: var(--text-soft); cursor: not-allowed; }
.input[readonly] { background: var(--bg-alt); }
.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%23565046' stroke-width='1.7'%3E%3Cpath d='M5 8l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  background-size: 18px;
  padding-right: 2.3rem;
}
.input-group { display: flex; }
.input-group .input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group .btn { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.input-prefix {
  display: inline-flex; align-items: center; padding-inline: 0.8rem;
  background: var(--bg-alt); border: 1px solid var(--line-strong); border-right: 0;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  font-size: var(--text-sm); font-weight: 650; color: var(--text-muted);
}
.input-prefix + .input { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.check { display: flex; align-items: flex-start; gap: 0.6rem; font-size: var(--text-base); cursor: pointer; }
.check input[type='checkbox'], .check input[type='radio'] {
  width: 19px; height: 19px; margin-top: 2px; flex: none; accent-color: var(--green-700); cursor: pointer;
}
.check-card {
  border: 1px solid var(--line-strong); border-radius: var(--radius-md);
  padding: var(--space-4); background: var(--surface);
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.check-card:hover { border-color: var(--green-200); }
.check-card:has(input:checked) { border-color: var(--green-600); background: var(--green-50); box-shadow: var(--shadow-xs); }
.check-card strong { display: block; }

.file-drop {
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  background: var(--bg-alt);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.file-drop:hover, .file-drop.is-over { border-color: var(--green-600); background: var(--green-50); }
.file-drop input[type='file'] { display: none; }
.file-drop .icon-badge { margin-inline: auto; margin-bottom: var(--space-3); }
.file-preview { margin-top: var(--space-3); display: none; }
.file-preview.is-set { display: block; }
.file-preview img { max-height: 220px; width: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }

fieldset { border: 0; padding: 0; }
.fieldset-title {
  font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600;
  padding-bottom: var(--space-3); margin-bottom: var(--space-4); border-bottom: 1px solid var(--border);
}

.form-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; margin-top: var(--space-5); }

/* -------------------------------------------------------------- tables --- */

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); }
.table { min-width: 620px; font-size: var(--text-base); }
.table thead th {
  position: sticky; top: 0; z-index: 1;
  text-align: left; padding: 0.7rem 1rem;
  background: var(--bg-alt);
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--text-muted); white-space: nowrap;
  border-bottom: 1px solid var(--border);
}
.table tbody td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr { transition: background-color var(--dur-fast) var(--ease); }
.table tbody tr:hover { background: var(--green-50); }
.table td .row { gap: 0.5rem; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.table-actions { display: flex; gap: 0.35rem; justify-content: flex-end; }
.table-compact tbody td, .table-compact thead th { padding: 0.55rem 0.75rem; }

.avatar {
  width: 38px; height: 38px; flex: none; border-radius: var(--radius-pill);
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, var(--green-700), var(--green-900));
  color: #fff; font-weight: 700; font-size: var(--text-sm); letter-spacing: 0.02em;
  overflow: hidden;
}
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-md); }
.avatar-sm { width: 30px; height: 30px; font-size: var(--text-xs); }
.avatar-gold { background: linear-gradient(140deg, var(--gold-500), var(--gold-700)); color: #22190a; }
.person { display: flex; align-items: center; gap: 0.65rem; min-width: 0; }
.person-name { font-weight: 650; }
.person-meta { font-size: var(--text-xs); color: var(--text-muted); }

/* ------------------------------------------------------------- states ---- */

.skeleton {
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--ivory-2) 25%, #ece5d6 37%, var(--ivory-2) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  min-height: 1rem;
}
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }
.skeleton-text { height: 0.85rem; margin-block: 0.45rem; }
.skeleton-row { height: 56px; margin-bottom: 0.55rem; }
.skeleton-card { height: 148px; }
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }

.empty-state, .error-state {
  text-align: center;
  padding: clamp(2rem, 1.5rem + 2vw, 3.25rem) var(--space-5);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  color: var(--text-muted);
}
.empty-state .icon-badge, .error-state .icon-badge { margin-inline: auto; margin-bottom: var(--space-4); }
.empty-state h3, .error-state h3 { font-size: var(--text-lg); color: var(--ink-800); margin-bottom: 0.4rem; }
.empty-state p, .error-state p { max-width: 46ch; margin-inline: auto; font-size: var(--text-base); }
.empty-state .btn, .error-state .btn { margin-top: var(--space-4); }
.error-state { border-color: rgba(179, 38, 30, 0.35); background: var(--danger-100); color: #7d1a14; }
.error-state .icon-badge { background: #fff; color: var(--danger-700); border-color: rgba(179, 38, 30, 0.3); }

.alert {
  display: flex; gap: 0.7rem; align-items: flex-start;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  font-size: var(--text-base);
  line-height: 1.55;
}
.alert svg { width: 19px; height: 19px; flex: none; margin-top: 2px; }
.alert strong { display: block; margin-bottom: 0.15rem; }
.alert-success { background: var(--success-100); border-color: rgba(15, 122, 79, 0.25); color: #0b5c3b; }
.alert-warning { background: var(--warning-100); border-color: rgba(163, 90, 6, 0.25); color: #7d4505; }
.alert-danger { background: var(--danger-100); border-color: rgba(179, 38, 30, 0.25); color: #85201a; }
.alert-info { background: var(--info-100); border-color: rgba(26, 86, 196, 0.22); color: #133f92; }
.alert-gold { background: var(--gold-100); border-color: var(--gold-300); color: var(--gold-800); }

/* -------------------------------------------------------------- toasts --- */

.toast-stack {
  position: fixed;
  right: clamp(0.75rem, 2vw, 1.5rem);
  bottom: clamp(0.75rem, 2vw, 1.5rem);
  z-index: var(--z-toast);
  display: flex; flex-direction: column; gap: 0.6rem;
  width: min(370px, calc(100vw - 1.5rem));
  pointer-events: none;
}
.toast {
  display: flex; gap: 0.65rem; align-items: flex-start;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: var(--ink-900);
  color: #f6f4ee;
  box-shadow: var(--shadow-lg);
  font-size: var(--text-base);
  pointer-events: auto;
  animation: toast-in 260ms var(--ease-out);
}
.toast.is-out { animation: toast-out 200ms var(--ease) forwards; }
.toast-success { background: #0c5d3d; }
.toast-error { background: #8c2019; }
.toast-warning { background: #7c4405; }
.toast strong { display: block; }
.toast p { color: rgba(255, 255, 255, 0.85); font-size: var(--text-sm); margin-top: 0.1rem; }
.toast button { color: rgba(255, 255, 255, 0.7); margin-left: auto; padding: 0 0.2rem; line-height: 1; font-size: 1.1rem; }
.toast button:hover { color: #fff; }
@keyframes toast-in { from { opacity: 0; transform: translateY(14px) scale(0.98); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(20px); } }

/* -------------------------------------------------------------- modals --- */

.modal-backdrop {
  position: fixed; inset: 0; z-index: var(--z-modal);
  background: rgba(10, 26, 19, 0.55);
  backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center;
  padding: clamp(0.75rem, 3vw, 2rem);
  animation: fade-in var(--dur) var(--ease);
  overflow-y: auto;
}
@keyframes fade-in { from { opacity: 0; } }
.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: min(560px, 100%);
  max-height: min(88dvh, 900px);
  display: flex; flex-direction: column;
  animation: modal-in 280ms var(--ease-out);
  margin: auto;
}
.modal-wide { width: min(880px, 100%); }
@keyframes modal-in { from { opacity: 0; transform: translateY(16px) scale(0.985); } }
.modal-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.modal-head h3 { font-size: var(--text-xl); }
.modal-head p { font-size: var(--text-sm); color: var(--text-muted); margin-top: 0.2rem; }
.modal-close {
  width: 34px; height: 34px; flex: none; border-radius: var(--radius-sm);
  display: inline-flex; align-items: center; justify-content: center; color: var(--text-muted);
}
.modal-close:hover { background: var(--bg-alt); color: var(--text); }
.modal-body { padding: var(--space-5); overflow-y: auto; }
.modal-foot {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  display: flex; gap: var(--space-3); justify-content: flex-end; flex-wrap: wrap;
}

/* ---------------------------------------------------------------- tabs --- */

.tabs {
  display: flex; gap: 0.2rem; overflow-x: auto; scrollbar-width: none;
  border-bottom: 1px solid var(--border); margin-bottom: var(--space-5);
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  padding: 0.7rem 1rem; font-size: var(--text-base); font-weight: 650;
  color: var(--text-muted); white-space: nowrap; border-bottom: 2px solid transparent;
  text-decoration: none; transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.tab:hover { color: var(--primary-strong); }
.tab[aria-selected='true'], .tab.is-active { color: var(--primary-strong); border-bottom-color: var(--gold-600); }
.tab-panel[hidden] { display: none; }

/* ----------------------------------------------------------- accordion --- */

.accordion { border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; background: var(--surface); }
.accordion + .accordion { margin-top: var(--space-3); }
.accordion summary {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: 1.05rem 1.25rem; cursor: pointer; font-weight: 650; font-size: var(--text-md);
  list-style: none; color: var(--ink-800);
  transition: background-color var(--dur-fast) var(--ease);
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary:hover { background: var(--green-50); }
.accordion summary::after {
  content: ''; width: 10px; height: 10px; flex: none;
  border-right: 2px solid var(--gold-700); border-bottom: 2px solid var(--gold-700);
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--dur) var(--ease);
}
.accordion[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
.accordion[open] summary { background: var(--green-50); }
.accordion .accordion-body { padding: 0 1.25rem 1.25rem; color: var(--text-muted); line-height: 1.7; }

/* --------------------------------------------------------- pagination --- */

.pagination { display: flex; gap: 0.35rem; align-items: center; justify-content: center; flex-wrap: wrap; margin-top: var(--space-5); }
.pagination button, .pagination span {
  min-width: 38px; height: 38px; padding-inline: 0.6rem;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); font-size: var(--text-sm); font-weight: 650; color: var(--ink-700);
}
.pagination button:hover:not([disabled]) { border-color: var(--green-600); color: var(--primary-strong); }
.pagination button[disabled] { opacity: 0.45; cursor: not-allowed; }
.pagination .is-current { background: var(--green-800); border-color: var(--green-800); color: #fff; }

/* ------------------------------------------------------------ progress -- */

.progress { height: 8px; border-radius: var(--radius-pill); background: var(--ivory-2); overflow: hidden; }
.progress-bar { height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--green-600), var(--green-800)); transition: width var(--dur-slow) var(--ease); }
.progress-gold .progress-bar { background: linear-gradient(90deg, var(--gold-500), var(--gold-700)); }

.steps { display: flex; flex-wrap: wrap; gap: var(--space-4); counter-reset: step; }
.step { display: flex; gap: 0.75rem; align-items: flex-start; flex: 1 1 190px; }
.step-num {
  width: 32px; height: 32px; flex: none; border-radius: var(--radius-pill);
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--green-100); color: var(--green-800); font-weight: 700; font-size: var(--text-sm);
  border: 1px solid var(--green-200);
}
.step.is-done .step-num { background: var(--success-700); color: #fff; border-color: var(--success-700); }
.step.is-current .step-num { background: var(--gold-600); color: #221803; border-color: var(--gold-700); }
.step-label { font-weight: 650; font-size: var(--text-base); }
.step-desc { font-size: var(--text-xs); color: var(--text-muted); }

/* ------------------------------------------------------------ tooltip --- */

[data-tip] { position: relative; }
[data-tip]::after {
  content: attr(data-tip);
  position: absolute; bottom: calc(100% + 7px); left: 50%; transform: translateX(-50%);
  background: var(--ink-900); color: #fff; font-size: var(--text-xs); font-weight: 600;
  padding: 0.3rem 0.55rem; border-radius: var(--radius-xs); white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity var(--dur-fast) var(--ease); z-index: 40;
}
[data-tip]:hover::after, [data-tip]:focus-visible::after { opacity: 1; }


/* =============================================================
   Professional public-site polish — production edition
   ============================================================= */
.topbar-note {
  background: linear-gradient(90deg, var(--green-950), var(--green-900));
  color: rgba(255,255,255,.88);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar-inner {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  font-size: .79rem;
  letter-spacing: .005em;
}
.topbar-inner strong { color: #fff; }
.topbar-dot { margin-inline: .45rem; color: var(--gold-400); }
.topbar-inner a {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--gold-300);
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}
.topbar-inner a:hover { color: #fff; }
.topbar-inner .icon-xs { width: 15px; height: 15px; }
.portal-link {
  color: var(--ink-700);
  font-size: var(--text-sm);
  font-weight: 720;
  text-decoration: none;
  white-space: nowrap;
}
.portal-link:hover { color: var(--primary-strong); }
.portal-sep { color: var(--ink-300); font-size: .8rem; }
.site-header {
  box-shadow: 0 1px 0 rgba(12,64,45,.05), 0 10px 30px -30px rgba(4,35,26,.28);
  backdrop-filter: saturate(135%) blur(10px);
}
.brand img { box-shadow: 0 5px 16px rgba(6,61,43,.12); }
.btn {
  transform: translateZ(0);
}
.btn-primary { box-shadow: 0 10px 22px -14px rgba(6,61,43,.65); }
.btn-gold { box-shadow: var(--shadow-gold); }
.card, .course-card, .teacher-card, .method-card, .admin-tile {
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur-fast) var(--ease);
}
@media (hover:hover) {
  .card-hover:hover, .course-card:hover, .teacher-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }
}
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(20,135,92,.10);
}
.auth-card, .modal, .portal-card { box-shadow: var(--shadow-lg); }

@media (max-width: 1100px) {
  .portal-link, .portal-sep { display: none; }
  .topbar-inner { justify-content: space-between; }
}
@media (max-width: 620px) {
  .topbar-inner { min-height: 34px; font-size: .72rem; justify-content: center; }
  .topbar-inner > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .topbar-inner a { display: none; }
  .topbar-dot { margin-inline: .3rem; }
}