/* ============================================================
   student-panel.css — redesigned student panel (2026 refresh)
   Evolution of the existing dark-navy brand. Paired with the
   shared layout helper at includes/student_layout.php.
   ============================================================ */

:root {
    --sp-bg:            #f5f6fb;
    --sp-surface:       #ffffff;
    --sp-surface-alt:   #fafaff;
    --sp-sidebar-1:     #06061a;
    --sp-sidebar-2:     #0d0d35;
    --sp-navy:          #0b1023;
    --sp-accent:        #5b4fd4;
    --sp-accent-soft:   #7c6af5;
    --sp-accent-bg:     rgba(124, 106, 245, .12);
    --sp-gold:          #f5c518;
    --sp-gold-soft:     rgba(245, 197, 24, .14);
    --sp-text:          #1a1a2e;
    --sp-muted:         #6b7285;
    --sp-muted-2:       #97a0b2;
    --sp-border:        #e7e7f0;
    --sp-border-strong: #d4d4e2;
    --sp-success:       #10b981;
    --sp-success-bg:    rgba(16, 185, 129, .12);
    --sp-warn:          #f59e0b;
    --sp-warn-bg:       rgba(245, 158, 11, .14);
    --sp-danger:        #ef4444;
    --sp-danger-bg:     rgba(239, 68, 68, .12);

    --sp-radius:        14px;
    --sp-radius-sm:     10px;
    --sp-shadow:        0 1px 2px rgba(11, 16, 35, .04), 0 8px 20px -10px rgba(11, 16, 35, .12);
    --sp-shadow-hover:  0 4px 10px rgba(11, 16, 35, .08), 0 16px 32px -14px rgba(91, 79, 212, .28);

    --sp-sidebar-w:     260px;
    --sp-transition:    .2s ease;
}

/* ── Base ──────────────────────────────────────────────── */
body.sp-body {
    margin: 0;
    background: var(--sp-bg);
    font-family: 'Open Sans', system-ui, -apple-system, sans-serif;
    color: var(--sp-text);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.55;
}
body.sp-body * { box-sizing: border-box; }
body.sp-body a { color: var(--sp-accent); text-decoration: none; }
body.sp-body a:hover { color: var(--sp-accent-soft); }
body.sp-body h1, body.sp-body h2, body.sp-body h3, body.sp-body h4, body.sp-body h5 {
    font-family: 'Playfair Display', 'Georgia', serif;
    color: var(--sp-text);
    font-weight: 700;
}

/* ── Shell ─────────────────────────────────────────────── */
.sp-shell {
    min-height: 100vh;
    display: flex;
}

/* ── Sidebar ───────────────────────────────────────────── */
.sp-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sp-sidebar-w);
    background: linear-gradient(180deg, var(--sp-sidebar-1), var(--sp-sidebar-2));
    color: #e6e6ff;
    display: flex;
    flex-direction: column;
    padding: 22px 0 16px;
    z-index: 1040;
    box-shadow: 2px 0 20px rgba(11, 16, 35, .12);
}
.sp-brand {
    padding: 0 22px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #fff;
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.08rem;
    letter-spacing: .2px;
}
.sp-brand:hover { color: #fff; opacity: .92; }
.sp-brand i {
    color: var(--sp-gold);
    background: rgba(245, 197, 24, .12);
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .95rem;
}

.sp-user {
    padding: 16px 22px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.sp-avatar {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sp-accent-soft), var(--sp-accent));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: .88rem;
    flex-shrink: 0;
    font-family: 'Open Sans', sans-serif;
}
.sp-user-info { min-width: 0; }
.sp-user-name {
    color: #fff; font-weight: 600; font-size: .88rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sp-user-email {
    color: rgba(230, 230, 255, .55); font-size: .72rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.sp-nav {
    flex: 1;
    overflow-y: auto;
    padding: 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sp-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: rgba(230, 230, 255, .75);
    border-radius: var(--sp-radius-sm);
    font-size: .86rem;
    font-weight: 500;
    transition: var(--sp-transition);
    position: relative;
}
.sp-nav a i {
    width: 18px;
    text-align: center;
    font-size: .88rem;
    opacity: .85;
}
.sp-nav a:hover {
    background: rgba(255, 255, 255, .05);
    color: #fff;
}
.sp-nav a.active {
    background: linear-gradient(135deg, rgba(124, 106, 245, .25), rgba(91, 79, 212, .15));
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(124, 106, 245, .35);
}
.sp-nav a.active::before {
    content: '';
    position: absolute;
    left: -12px; top: 8px; bottom: 8px;
    width: 3px;
    background: var(--sp-gold);
    border-radius: 0 3px 3px 0;
}
.sp-nav-section {
    padding: 14px 14px 6px;
    font-size: .68rem;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    color: rgba(230, 230, 255, .35);
}

.sp-sidebar-footer {
    padding: 12px 14px 0;
    border-top: 1px solid rgba(255, 255, 255, .06);
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sp-referral-chip {
    margin: 6px 8px 8px;
    padding: 10px 12px;
    border-radius: var(--sp-radius-sm);
    background: rgba(245, 197, 24, .1);
    border: 1px solid rgba(245, 197, 24, .2);
    font-size: .72rem;
    color: rgba(255, 255, 255, .8);
}
.sp-referral-chip .lbl { color: rgba(255, 255, 255, .5); font-size: .65rem; letter-spacing: .6px; text-transform: uppercase; display: block; margin-bottom: 4px; }
.sp-referral-chip .val { color: var(--sp-gold); font-family: monospace; font-size: .88rem; font-weight: 700; letter-spacing: 1px; }
.sp-referral-chip .copy-btn {
    float: right;
    background: transparent;
    border: none;
    color: var(--sp-gold);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: .72rem;
}
.sp-referral-chip .copy-btn:hover { background: rgba(245, 197, 24, .16); }

/* ── Visit Site — sidebar nav link ── */
.sp-visit-site-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    margin: 4px 8px;
    border-radius: var(--sp-radius-sm);
    background: linear-gradient(135deg, rgba(124,106,245,.18), rgba(108,99,255,.1));
    border: 1px solid rgba(124,106,245,.35);
    color: #a78bfa !important;
    font-size: .88rem;
    font-weight: 600;
    text-decoration: none;
    transition: background .2s, border-color .2s;
}
.sp-visit-site-btn:hover {
    background: linear-gradient(135deg, rgba(124,106,245,.3), rgba(108,99,255,.2));
    border-color: rgba(124,106,245,.6);
    color: #c4b5fd !important;
}
.sp-visit-ext-icon { margin-left: auto; font-size: .7rem; opacity: .7; }

/* ── Visit Site — top bar button ── */
.sp-topbar-visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 18px;
    border-radius: 8px;
    background: linear-gradient(135deg, #7c6af5, #6c63ff);
    color: #fff !important;
    font-size: .82rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(124,106,245,.3);
    transition: box-shadow .2s, transform .15s;
}
.sp-topbar-visit-btn:hover {
    box-shadow: 0 6px 20px rgba(124,106,245,.45);
    transform: translateY(-1px);
    color: #fff !important;
}

/* ── Mobile menu toggle (only visible on small screens) ── */
.sp-menu-toggle {
    display: none;
    position: fixed;
    top: 12px; left: 12px;
    z-index: 1050;
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--sp-navy);
    color: #fff;
    border: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--sp-shadow);
}
.sp-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(7, 7, 26, .45);
    backdrop-filter: blur(2px);
    z-index: 1039;
}

/* ── Main content ──────────────────────────────────────── */
.sp-main {
    flex: 1;
    margin-left: var(--sp-sidebar-w);
    padding: 26px clamp(16px, 3vw, 36px) 48px;
    min-width: 0;
}
.sp-page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.sp-page-title {
    margin: 0;
    font-family: 'Playfair Display', serif;
    font-size: 1.55rem;
    color: var(--sp-text);
}
.sp-page-subtitle {
    margin: 2px 0 0;
    color: var(--sp-muted);
    font-size: .82rem;
}

/* ── Welcome banner ────────────────────────────────────── */
.sp-welcome {
    background:
        radial-gradient(circle at 92% 12%, rgba(245, 197, 24, .28) 0%, transparent 55%),
        radial-gradient(circle at 12% 88%, rgba(124, 106, 245, .35) 0%, transparent 55%),
        linear-gradient(135deg, #06061a 0%, #151350 100%);
    color: #fff;
    border-radius: var(--sp-radius);
    padding: 26px 28px;
    margin-bottom: 22px;
    position: relative;
    overflow: hidden;
}
.sp-welcome h3 {
    color: #fff !important;
    font-size: 1.3rem;
    margin: 0 0 4px;
    font-family: 'Playfair Display', serif;
}
.sp-welcome p {
    color: rgba(255, 255, 255, .72);
    margin: 0;
    font-size: .86rem;
    max-width: 620px;
}
.sp-welcome .cta {
    margin-top: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--sp-gold);
    color: var(--sp-navy);
    font-weight: 700;
    font-size: .82rem;
    padding: 10px 18px;
    border-radius: 999px;
    transition: var(--sp-transition);
}
.sp-welcome .cta:hover { background: #ffd634; color: var(--sp-navy); transform: translateY(-1px); }

/* ── Stat cards (KPI) ──────────────────────────────────── */
.sp-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 26px;
}
.sp-stat-card {
    background: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius);
    padding: 18px 18px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: var(--sp-transition);
    position: relative;
    overflow: hidden;
}
.sp-stat-card::before {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 3px;
    background: var(--bar, var(--sp-accent));
}
.sp-stat-card:hover { transform: translateY(-2px); box-shadow: var(--sp-shadow-hover); }
.sp-stat-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    background: var(--bg, var(--sp-accent-bg));
    color: var(--fg, var(--sp-accent));
    flex-shrink: 0;
}
.sp-stat-value {
    font-size: 1.55rem;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
    color: var(--sp-text);
    line-height: 1;
}
.sp-stat-label {
    color: var(--sp-muted);
    font-size: .74rem;
    letter-spacing: .3px;
    text-transform: uppercase;
    margin-top: 3px;
    font-weight: 600;
}

/* ── Gamification pills row ────────────────────────────── */
.sp-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}
.sp-pill {
    background: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: 999px;
    padding: 7px 14px 7px 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .78rem;
    color: var(--sp-text);
    font-weight: 500;
}
.sp-pill .icn {
    width: 24px; height: 24px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg, var(--sp-accent-bg));
    color: var(--fg, var(--sp-accent));
    font-size: .72rem;
}
.sp-pill .v {
    font-weight: 700;
    color: var(--sp-text);
    font-family: 'Open Sans', sans-serif;
}
.sp-pill .h {
    color: var(--sp-muted-2);
    font-size: .7rem;
    margin-left: 2px;
}

/* ── Section headings ──────────────────────────────────── */
.sp-section {
    margin-bottom: 28px;
}
.sp-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.sp-section-head h5 {
    margin: 0;
    font-size: 1.05rem;
    font-family: 'Playfair Display', serif;
    color: var(--sp-text);
}
.sp-section-head .hint { color: var(--sp-muted); font-size: .78rem; }
.sp-btn-link {
    color: var(--sp-accent);
    font-weight: 600;
    font-size: .8rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--sp-transition);
}
.sp-btn-link:hover { color: var(--sp-accent-soft); gap: 8px; }

/* ── Buttons ───────────────────────────────────────────── */
.sp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: .83rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--sp-transition);
    font-family: 'Open Sans', sans-serif;
    line-height: 1.2;
}
.sp-btn-primary { background: var(--sp-navy); color: #fff; }
.sp-btn-primary:hover { background: #151c3f; color: #fff; transform: translateY(-1px); }
.sp-btn-accent { background: linear-gradient(135deg, var(--sp-accent), var(--sp-accent-soft)); color: #fff; }
.sp-btn-accent:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 8px 18px -8px rgba(91, 79, 212, .6); }
.sp-btn-gold { background: var(--sp-gold); color: var(--sp-navy); }
.sp-btn-gold:hover { background: #ffd634; color: var(--sp-navy); }
.sp-btn-ghost { background: transparent; color: var(--sp-text); border-color: var(--sp-border-strong); }
.sp-btn-ghost:hover { background: var(--sp-surface-alt); border-color: var(--sp-accent); color: var(--sp-accent); }
.sp-btn-outline { background: var(--sp-surface); color: var(--sp-accent); border-color: var(--sp-border-strong); }
.sp-btn-outline:hover { background: var(--sp-accent); color: #fff; border-color: var(--sp-accent); }
.sp-btn-sm { padding: 6px 12px; font-size: .76rem; }
.sp-btn-block { width: 100%; }

/* ── Course cards ──────────────────────────────────────── */
.sp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
}
.sp-course {
    background: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--sp-transition);
    position: relative;
}
.sp-course:hover {
    transform: translateY(-3px);
    box-shadow: var(--sp-shadow-hover);
    border-color: var(--sp-accent-soft);
}
.sp-course-thumb {
    height: 140px;
    background:
        radial-gradient(circle at 80% 20%, rgba(245, 197, 24, .25), transparent 55%),
        linear-gradient(135deg, #e8e6f5 0%, #d4cfff 60%, #b7b0f5 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.sp-course-thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
}
.sp-course-thumb .fallback-icon {
    font-size: 2.4rem;
    color: var(--sp-navy);
    opacity: .3;
}
.sp-course-body {
    padding: 14px 16px 16px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.sp-course-title {
    font-size: .92rem;
    font-weight: 700;
    color: var(--sp-text);
    margin: 0 0 4px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.5em;
}
.sp-course-meta {
    color: var(--sp-muted);
    font-size: .74rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.sp-level {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: .66rem;
    font-weight: 700;
    letter-spacing: .5px;
    text-transform: uppercase;
    margin-bottom: 8px;
    align-self: flex-start;
}
.sp-level-beginner     { background: var(--sp-success-bg); color: var(--sp-success); }
.sp-level-intermediate { background: var(--sp-warn-bg);    color: var(--sp-warn); }
.sp-level-advanced     { background: var(--sp-danger-bg);  color: var(--sp-danger); }

.sp-progress {
    height: 6px;
    background: #eceaf5;
    border-radius: 3px;
    overflow: hidden;
    margin-top: auto;
}
.sp-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--sp-accent), var(--sp-accent-soft));
    border-radius: 3px;
    transition: width .4s ease;
}
.sp-progress-bar.done { background: linear-gradient(90deg, var(--sp-success), #34d399); }
.sp-progress-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    font-size: .72rem;
    color: var(--sp-muted);
}
.sp-done-tag {
    background: var(--sp-success-bg);
    color: var(--sp-success);
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: .68rem;
}

.sp-course-cta { margin-top: 12px; }
.sp-price {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 700;
    color: var(--sp-navy);
    font-size: .92rem;
}
.sp-price-free {
    background: var(--sp-success-bg);
    color: var(--sp-success);
    padding: 3px 10px;
    border-radius: 999px;
    font-size: .76rem;
}
.sp-rating {
    color: var(--sp-muted);
    font-size: .74rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.sp-rating .star { color: var(--sp-gold); font-size: .78rem; }

/* Remove button (wishlist) */
.sp-remove-btn {
    position: absolute;
    top: 10px; right: 10px;
    width: 30px; height: 30px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .92);
    color: var(--sp-danger);
    border: none;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: var(--sp-transition);
    z-index: 2;
    backdrop-filter: blur(4px);
    font-size: .8rem;
}
.sp-remove-btn:hover { background: var(--sp-danger); color: #fff; transform: scale(1.06); }

/* ── Cards (generic panels) ────────────────────────────── */
.sp-card {
    background: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius);
    padding: 20px;
    box-shadow: var(--sp-shadow);
}
.sp-card-compact { padding: 14px 16px; }
.sp-card h6 {
    margin: 0 0 12px;
    font-size: .92rem;
    font-family: 'Playfair Display', serif;
    color: var(--sp-text);
    font-weight: 700;
}

/* ── Forms ─────────────────────────────────────────────── */
.sp-form-group { margin-bottom: 14px; }
.sp-form-group label {
    display: block;
    font-size: .76rem;
    color: var(--sp-muted);
    font-weight: 600;
    letter-spacing: .3px;
    text-transform: uppercase;
    margin-bottom: 6px;
}
.sp-input, .sp-select, .sp-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--sp-border-strong);
    border-radius: 10px;
    background: var(--sp-surface);
    color: var(--sp-text);
    font-size: .86rem;
    font-family: 'Open Sans', sans-serif;
    transition: var(--sp-transition);
}
.sp-input:focus, .sp-select:focus, .sp-textarea:focus {
    outline: none;
    border-color: var(--sp-accent);
    box-shadow: 0 0 0 3px rgba(91, 79, 212, .14);
}
.sp-input:disabled, .sp-input[readonly] {
    background: var(--sp-surface-alt);
    color: var(--sp-muted);
    cursor: not-allowed;
}
.sp-textarea { min-height: 100px; resize: vertical; }

/* ── Alerts / flash ────────────────────────────────────── */
.sp-alert {
    padding: 12px 16px;
    border-radius: var(--sp-radius-sm);
    font-size: .84rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
    border: 1px solid transparent;
}
.sp-alert i { font-size: 1rem; margin-top: 1px; flex-shrink: 0; }
.sp-alert-success { background: var(--sp-success-bg); color: #047857; border-color: rgba(16, 185, 129, .2); }
.sp-alert-danger  { background: var(--sp-danger-bg);  color: #b91c1c; border-color: rgba(239, 68, 68, .2); }
.sp-alert-info    { background: var(--sp-accent-bg);  color: var(--sp-accent); border-color: rgba(124, 106, 245, .2); }
.sp-alert-warn    { background: var(--sp-warn-bg);    color: #b45309; border-color: rgba(245, 158, 11, .2); }

/* ── Empty state ───────────────────────────────────────── */
.sp-empty {
    background: var(--sp-surface);
    border: 1px dashed var(--sp-border-strong);
    border-radius: var(--sp-radius);
    padding: 48px 24px;
    text-align: center;
    color: var(--sp-muted);
}
.sp-empty .icn {
    font-size: 3rem;
    color: var(--sp-border-strong);
    margin-bottom: 14px;
    display: block;
}
.sp-empty h5 {
    margin: 0 0 6px;
    font-size: 1.05rem;
    color: var(--sp-text);
}
.sp-empty p { margin: 0 0 18px; font-size: .86rem; }

/* ── Filter sidebar (courses page) ─────────────────────── */
.sp-filter {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.sp-filter a {
    padding: 8px 12px;
    border-radius: 8px;
    font-size: .82rem;
    color: var(--sp-text);
    font-weight: 500;
    transition: var(--sp-transition);
    border: 1px solid transparent;
}
.sp-filter a:hover { background: var(--sp-accent-bg); color: var(--sp-accent); }
.sp-filter a.active { background: var(--sp-navy); color: #fff; }

/* ── Search bar ────────────────────────────────────────── */
.sp-search {
    position: relative;
    max-width: 460px;
}
.sp-search i {
    position: absolute;
    left: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--sp-muted-2);
    font-size: .86rem;
}
.sp-search input {
    width: 100%;
    padding: 10px 14px 10px 38px;
    border: 1px solid var(--sp-border-strong);
    border-radius: 999px;
    background: var(--sp-surface);
    font-size: .86rem;
    transition: var(--sp-transition);
}
.sp-search input:focus {
    outline: none;
    border-color: var(--sp-accent);
    box-shadow: 0 0 0 3px rgba(91, 79, 212, .14);
}

/* ── Notes-specific ────────────────────────────────────── */
.sp-note-group-title {
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    color: var(--sp-navy);
    padding: 12px 0 10px;
    border-bottom: 2px solid var(--sp-accent-bg);
    margin: 18px 0 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sp-note {
    background: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-left: 4px solid var(--sp-accent-soft);
    border-radius: var(--sp-radius-sm);
    padding: 16px 18px;
    margin-bottom: 12px;
    transition: var(--sp-transition);
}
.sp-note:hover { box-shadow: var(--sp-shadow); }
.sp-note .lesson-label {
    font-weight: 700;
    color: var(--sp-text);
    font-size: .88rem;
    margin-top: 2px;
}
.sp-note .course-chip {
    display: inline-block;
    background: var(--sp-accent-bg);
    color: var(--sp-accent);
    padding: 2px 10px;
    border-radius: 999px;
    font-size: .66rem;
    font-weight: 700;
    letter-spacing: .3px;
    text-transform: uppercase;
}
.sp-note .timestamp {
    color: var(--sp-muted-2);
    font-size: .72rem;
    margin-top: 4px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.sp-note .body {
    margin-top: 10px;
    color: var(--sp-text);
    font-size: .88rem;
    white-space: pre-wrap;
    line-height: 1.6;
}
.sp-note-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}
.sp-note-btn {
    padding: 4px 10px;
    font-size: .72rem;
    border-radius: 6px;
    border: 1px solid var(--sp-border-strong);
    background: var(--sp-surface);
    color: var(--sp-text);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--sp-transition);
}
.sp-note-btn:hover { border-color: var(--sp-accent); color: var(--sp-accent); }
.sp-note-btn.danger:hover { border-color: var(--sp-danger); color: var(--sp-danger); background: var(--sp-danger-bg); }

/* ── Toast ─────────────────────────────────────────────── */
.sp-toast {
    position: fixed;
    bottom: 24px; left: 50%;
    transform: translateX(-50%) translateY(30px);
    background: var(--sp-navy);
    color: #fff;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 500;
    box-shadow: 0 12px 28px rgba(11, 16, 35, .3);
    z-index: 1060;
    opacity: 0;
    transition: transform .25s, opacity .25s;
    pointer-events: none;
}
.sp-toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ── Print (notes export) ──────────────────────────────── */
@media print {
    .sp-sidebar, .sp-menu-toggle, .sp-backdrop,
    .sp-page-head .sp-btn, .sp-note-actions, .no-print { display: none !important; }
    .sp-main { margin-left: 0 !important; padding: 0 !important; }
    .sp-note { break-inside: avoid; page-break-inside: avoid; }
    body.sp-body { background: #fff !important; }
    .sp-card { border: none !important; box-shadow: none !important; padding: 0 !important; }
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 991.98px) {
    .sp-menu-toggle { display: flex; }
    .sp-sidebar {
        transform: translateX(-100%);
        transition: transform .28s ease;
    }
    .sp-sidebar.open { transform: translateX(0); }
    .sp-backdrop.show { display: block; }
    .sp-main {
        margin-left: 0;
        padding: 64px 16px 32px;
    }
    .sp-welcome { padding: 22px 20px; }
}
@media (max-width: 575.98px) {
    .sp-page-title { font-size: 1.25rem; }
    .sp-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .sp-grid { grid-template-columns: 1fr; }
    .sp-welcome h3 { font-size: 1.1rem; }
}