/* Student Batch Manager Plugin Styles
 * All classes namespaced with sbm- to avoid conflicts with themes
 */

#sbm-root,
.sbm-plugin-wrap {
  --sbm-ink: #0f1623;
  --sbm-ink2: #2d3748;
  --sbm-muted: #718096;
  --sbm-border: #e2e8f0;
  --sbm-bg: #f7f9fc;
  --sbm-card: #ffffff;
  --sbm-accent: #2563eb;
  --sbm-accent-light: #dbeafe;
  --sbm-success: #059669;
  --sbm-success-light: #d1fae5;
  --sbm-warn: #d97706;
  --sbm-warn-light: #fef3c7;
  --sbm-danger: #dc2626;
  --sbm-danger-light: #fee2e2;
  --sbm-purple: #7c3aed;
  --sbm-purple-light: #ede9fe;
  --sbm-radius: 12px;
  --sbm-shadow: 0 1px 3px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.05);
  --sbm-shadow-md: 0 4px 24px rgba(0,0,0,.1);

  font-family: 'Sora', sans-serif;
  color: var(--sbm-ink);
  box-sizing: border-box;
  line-height: 1.5;
}

#sbm-root *, #sbm-root *::before, #sbm-root *::after,
.sbm-plugin-wrap *, .sbm-plugin-wrap *::before, .sbm-plugin-wrap *::after {
  box-sizing: border-box;
}

/* Typography */
#sbm-root h1, #sbm-root h2, #sbm-root h3,
.sbm-plugin-wrap h1, .sbm-plugin-wrap h2, .sbm-plugin-wrap h3 {
  font-family: 'Fraunces', serif;
  line-height: 1.2;
  margin: 0;
}

/* ── APP WRAPPER ─────────────────────────────────────────────────────── */
.sbm-app { background: var(--sbm-bg); min-height: 500px; display: flex; flex-direction: column; }

/* ── LANDING ─────────────────────────────────────────────────────────── */
.sbm-landing {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: #0f1623;
  color: white;
  position: relative;
  overflow: hidden;
  border-radius: var(--sbm-radius);
}
.sbm-landing::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, #1e3a8a55 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, #7c3aed33 0%, transparent 50%);
  pointer-events: none;
}
.sbm-landing-content { position: relative; z-index: 1; text-align: center; max-width: 540px; }
.sbm-landing-content h1 { font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 700; margin-bottom: 1rem; }
.sbm-landing-content h1 span { color: #60a5fa; font-style: italic; }
.sbm-landing-content p { color: #94a3b8; font-size: 1rem; margin-bottom: 2.5rem; line-height: 1.7; }
.sbm-landing-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── BUTTONS ─────────────────────────────────────────────────────────── */
.sbm-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1.4rem;
  border-radius: 8px;
  font-family: 'Sora', sans-serif;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  border: none;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}
.sbm-btn:disabled { opacity: .55; cursor: not-allowed; pointer-events: none; }
.sbm-btn-primary { background: #2563eb; color: white; }
.sbm-btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); }
.sbm-btn-outline { background: transparent; color: white; border: 1.5px solid #475569; }
.sbm-btn-outline:hover { background: #1e293b; }
.sbm-btn-sm { padding: .42rem .85rem; font-size: .8rem; }
.sbm-btn-ghost { background: transparent; color: var(--sbm-muted); border: 1.5px solid var(--sbm-border); }
.sbm-btn-ghost:hover { background: var(--sbm-bg); color: var(--sbm-ink); }
.sbm-btn-danger { background: var(--sbm-danger); color: white; }
.sbm-btn-danger:hover { background: #b91c1c; }
.sbm-btn-success { background: var(--sbm-success); color: white; }
.sbm-btn-success:hover { background: #047857; }

/* ── NAVBAR ──────────────────────────────────────────────────────────── */
.sbm-navbar {
  background: var(--sbm-card);
  border-bottom: 1px solid var(--sbm-border);
  padding: .9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}
.sbm-navbar-brand { font-family: 'Fraunces', serif; font-size: 1.3rem; font-weight: 700; color: var(--sbm-accent); }
.sbm-navbar-brand span { font-style: italic; }
.sbm-navbar-right { display: flex; align-items: center; gap: .75rem; }
.sbm-badge { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 50%; font-size: .68rem; font-weight: 700; background: var(--sbm-danger); color: white; }

/* ── LAYOUT ──────────────────────────────────────────────────────────── */
.sbm-layout { display: flex; min-height: 400px; flex: 1; }
.sbm-sidebar { width: 220px; background: var(--sbm-card); border-right: 1px solid var(--sbm-border); padding: 1.25rem 0; flex-shrink: 0; }
.sbm-sidebar-item { display: flex; align-items: center; gap: .65rem; padding: .7rem 1.25rem; cursor: pointer; font-size: .88rem; font-weight: 500; color: var(--sbm-muted); transition: all .15s; border-left: 3px solid transparent; }
.sbm-sidebar-item:hover { background: var(--sbm-bg); color: var(--sbm-ink); }
.sbm-sidebar-item.active { background: var(--sbm-accent-light); color: var(--sbm-accent); border-left-color: var(--sbm-accent); }
.sbm-main { flex: 1; padding: 2rem; overflow-y: auto; }

/* ── CARDS ───────────────────────────────────────────────────────────── */
.sbm-card { background: var(--sbm-card); border: 1px solid var(--sbm-border); border-radius: var(--sbm-radius); box-shadow: var(--sbm-shadow); margin-bottom: 1rem; }
.sbm-card-header { padding: 1.1rem 1.5rem; border-bottom: 1px solid var(--sbm-border); display: flex; align-items: center; justify-content: space-between; }
.sbm-card-body { padding: 1.25rem 1.5rem; }

/* ── STAT CARDS ──────────────────────────────────────────────────────── */
.sbm-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.sbm-stat-card { background: var(--sbm-card); border: 1px solid var(--sbm-border); border-radius: var(--sbm-radius); padding: 1.25rem; box-shadow: var(--sbm-shadow); }
.sbm-stat-card .sbm-label { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--sbm-muted); margin-bottom: .5rem; }
.sbm-stat-card .sbm-value { font-family: 'Fraunces', serif; font-size: 2rem; font-weight: 700; }
.sbm-stat-card.blue   .sbm-value { color: var(--sbm-accent); }
.sbm-stat-card.green  .sbm-value { color: var(--sbm-success); }
.sbm-stat-card.orange .sbm-value { color: var(--sbm-warn); }
.sbm-stat-card.purple .sbm-value { color: var(--sbm-purple); }

/* ── PAGE TITLES ─────────────────────────────────────────────────────── */
.sbm-page-title { font-size: 1.5rem; font-weight: 700; margin-bottom: .3rem; color: var(--sbm-ink); }
.sbm-page-subtitle { color: var(--sbm-muted); font-size: .9rem; margin-bottom: 1.75rem; }

/* ── TABLE ───────────────────────────────────────────────────────────── */
.sbm-table-wrap { overflow-x: auto; }
.sbm-table-wrap table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.sbm-table-wrap th { padding: .75rem 1rem; text-align: left; font-weight: 600; font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--sbm-muted); border-bottom: 2px solid var(--sbm-border); white-space: nowrap; }
.sbm-table-wrap td { padding: .85rem 1rem; border-bottom: 1px solid var(--sbm-border); vertical-align: middle; }
.sbm-table-wrap tr:last-child td { border-bottom: none; }
.sbm-table-wrap tr:hover td { background: var(--sbm-bg); }

/* ── STATUS CHIPS ────────────────────────────────────────────────────── */
.sbm-chip { display: inline-flex; align-items: center; gap: .3rem; padding: .25rem .7rem; border-radius: 99px; font-size: .75rem; font-weight: 600; }
.sbm-chip-pending  { background: var(--sbm-warn-light);    color: var(--sbm-warn); }
.sbm-chip-accepted { background: var(--sbm-success-light); color: var(--sbm-success); }
.sbm-chip-rejected { background: var(--sbm-danger-light);  color: var(--sbm-danger); }
.sbm-chip-batch    { background: var(--sbm-purple-light);  color: var(--sbm-purple); }
.sbm-chip-none     { background: var(--sbm-border);        color: var(--sbm-muted); }

/* ── FORMS ───────────────────────────────────────────────────────────── */
.sbm-form-group { margin-bottom: 1.1rem; }
.sbm-form-group label { display: block; font-size: .82rem; font-weight: 600; color: var(--sbm-ink2); margin-bottom: .4rem; }
.sbm-form-group input,
.sbm-form-group textarea,
.sbm-form-group select {
  width: 100%;
  padding: .68rem .9rem;
  border: 1.5px solid var(--sbm-border);
  border-radius: 8px;
  font-family: 'Sora', sans-serif;
  font-size: .88rem;
  color: var(--sbm-ink);
  background: var(--sbm-card);
  transition: border .15s;
  outline: none;
}
.sbm-form-group input:focus,
.sbm-form-group textarea:focus,
.sbm-form-group select:focus {
  border-color: var(--sbm-accent);
  box-shadow: 0 0 0 3px var(--sbm-accent-light);
}
.sbm-form-group textarea { resize: vertical; min-height: 88px; }
.sbm-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.sbm-form-error { font-size: .76rem; color: var(--sbm-danger); margin-top: .3rem; }
.sbm-form-hint  { font-size: .76rem; color: var(--sbm-muted);  margin-top: .3rem; }

/* ── MODAL ───────────────────────────────────────────────────────────── */
.sbm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,22,35,.55);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: sbmFadeIn .15s;
}
@keyframes sbmFadeIn { from { opacity: 0; } }
.sbm-modal { background: var(--sbm-card); border-radius: var(--sbm-radius); width: 100%; max-width: 520px; box-shadow: var(--sbm-shadow-md); animation: sbmSlideUp .2s; }
@keyframes sbmSlideUp { from { opacity: 0; transform: translateY(16px); } }
.sbm-modal-header { padding: 1.2rem 1.5rem; border-bottom: 1px solid var(--sbm-border); display: flex; align-items: center; justify-content: space-between; }
.sbm-modal-header h3 { font-size: 1.05rem; }
.sbm-modal-body { padding: 1.5rem; }
.sbm-modal-footer { padding: .9rem 1.5rem; border-top: 1px solid var(--sbm-border); display: flex; justify-content: flex-end; gap: .75rem; }

/* ── ALERTS ──────────────────────────────────────────────────────────── */
.sbm-alert { padding: .85rem 1.1rem; border-radius: 8px; font-size: .88rem; margin-bottom: 1rem; }
.sbm-alert-success { background: var(--sbm-success-light); color: #065f46; border: 1px solid #6ee7b7; }
.sbm-alert-error   { background: var(--sbm-danger-light);  color: #991b1b; border: 1px solid #fca5a5; }
.sbm-alert-info    { background: var(--sbm-accent-light);  color: #1e40af; border: 1px solid #93c5fd; }

/* ── ENROLL PAGE ─────────────────────────────────────────────────────── */
.sbm-enroll-page { min-height: 500px; background: var(--sbm-bg); display: flex; align-items: center; justify-content: center; padding: 2rem; }
.sbm-enroll-card { background: var(--sbm-card); border-radius: 18px; box-shadow: var(--sbm-shadow-md); padding: 2.25rem; width: 100%; max-width: 560px; border: 1px solid var(--sbm-border); }
.sbm-enroll-card h2 { font-size: 1.7rem; margin-bottom: .4rem; }
.sbm-sub { color: var(--sbm-muted); font-size: .9rem; margin-bottom: 1.75rem; }

/* ── STUDENT PORTAL ──────────────────────────────────────────────────── */
.sbm-portal-hero { background: linear-gradient(135deg, #1e3a8a, #2563eb); color: white; border-radius: var(--sbm-radius); padding: 2rem; margin-bottom: 1.5rem; }
.sbm-portal-hero h2 { font-size: 1.4rem; margin-bottom: .3rem; }
.sbm-portal-hero p { opacity: .8; font-size: .9rem; }
.sbm-update-card { background: var(--sbm-card); border: 1px solid var(--sbm-border); border-radius: var(--sbm-radius); padding: 1.25rem 1.5rem; margin-bottom: .75rem; border-left: 4px solid var(--sbm-accent); }
.sbm-update-time { font-size: .75rem; color: var(--sbm-muted); margin-top: .5rem; }

/* ── BATCH CARDS ─────────────────────────────────────────────────────── */
.sbm-batch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.sbm-batch-card { background: var(--sbm-card); border: 1.5px solid var(--sbm-border); border-radius: var(--sbm-radius); padding: 1.25rem; cursor: pointer; transition: all .2s; box-shadow: var(--sbm-shadow); }
.sbm-batch-card:hover { border-color: var(--sbm-accent); box-shadow: 0 4px 20px rgba(37,99,235,.12); transform: translateY(-2px); }
.sbm-batch-card.selected { border-color: var(--sbm-accent); background: var(--sbm-accent-light); }
.sbm-batch-card h4 { font-family: 'Fraunces', serif; font-size: 1.05rem; margin-bottom: .4rem; }
.sbm-meta { font-size: .8rem; color: var(--sbm-muted); }

/* ── SEARCH ──────────────────────────────────────────────────────────── */
.sbm-search-wrap { position: relative; }
.sbm-search-wrap input { padding-left: 2.4rem; }
.sbm-search-icon { position: absolute; left: .75rem; top: 50%; transform: translateY(-50%); color: var(--sbm-muted); pointer-events: none; }

/* ── EMPTY STATE ─────────────────────────────────────────────────────── */
.sbm-empty { text-align: center; padding: 3rem 1rem; color: var(--sbm-muted); }
.sbm-empty p { font-size: .9rem; }

/* ── TABS ────────────────────────────────────────────────────────────── */
.sbm-tabs { display: flex; gap: .25rem; background: var(--sbm-bg); border: 1px solid var(--sbm-border); border-radius: 8px; padding: .25rem; }
.sbm-tab { flex: 1; padding: .5rem; text-align: center; font-size: .82rem; font-weight: 600; cursor: pointer; border-radius: 6px; color: var(--sbm-muted); transition: all .15s; border: none; background: none; font-family: 'Sora', sans-serif; }
.sbm-tab.active { background: var(--sbm-card); color: var(--sbm-accent); box-shadow: 0 1px 4px rgba(0,0,0,.08); }

/* ── ACTIONS ─────────────────────────────────────────────────────────── */
.sbm-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

/* ── RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 680px) {
  .sbm-form-row { grid-template-columns: 1fr; }
  .sbm-sidebar { display: none; }
  .sbm-main { padding: 1rem; }
  .sbm-batch-grid { grid-template-columns: 1fr; }
  .sbm-landing-content h1 { font-size: 1.7rem; }
}

/* ── WP ADMIN PAGE ───────────────────────────────────────────────────── */
.wrap #sbm-root { margin-top: 1rem; }