/* ==============================================
   classes.css  —  append to bottom of students.css
   OR load as: <link rel="stylesheet" href="css/classes.css">
   Class selector / management shared across all pages
   ============================================== */

/* ── Class color accent map ───────────────────────────────── */
:root {
    --cls-teal:   #2afadf;
    --cls-purple: #8a2be2;
    --cls-pink:   #ff2e63;
    --cls-amber:  #ff9a3c;
    --cls-blue:   #4fc3f7;
    --cls-gold:   #ffd700;
    --cls-red:    #ff4444;
    --cls-green:  #4caf50;
}

/* ── Class selector banner ────────────────────────────────── */
.class-selector-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1rem 1.4rem;
    background: rgba(22,33,62,.7);
    border: 1px solid rgba(42,250,223,.15);
    border-radius: var(--r-lg);
    backdrop-filter: blur(10px);
}
.class-selector-left {
    display: flex;
    align-items: center;
    gap: .8rem;
    flex-wrap: wrap;
    flex: 1;
    min-width: 0;
}
.class-selector-label {
    font-size: .78rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}
.class-chips {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}
.class-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: .45rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(42,250,223,.2);
    background: rgba(42,250,223,.06);
    color: var(--text-secondary);
    font-size: .84rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: var(--ease);
    white-space: nowrap;
}
.class-chip:hover { color: var(--text-primary); border-color: rgba(42,250,223,.4); background: rgba(42,250,223,.12); }
.class-chip.active { color: #fff; border-color: transparent; }

/* Color variants for active chips */
.class-chip.active.cc-teal   { background: linear-gradient(135deg,#2afadf55,#2afadf22); border-color: var(--cls-teal);   color: var(--cls-teal); }
.class-chip.active.cc-purple { background: linear-gradient(135deg,#8a2be255,#8a2be222); border-color: var(--cls-purple); color: var(--cls-purple); }
.class-chip.active.cc-pink   { background: linear-gradient(135deg,#ff2e6355,#ff2e6322); border-color: var(--cls-pink);   color: var(--cls-pink); }
.class-chip.active.cc-amber  { background: linear-gradient(135deg,#ff9a3c55,#ff9a3c22); border-color: var(--cls-amber);  color: var(--cls-amber); }
.class-chip.active.cc-blue   { background: linear-gradient(135deg,#4fc3f755,#4fc3f722); border-color: var(--cls-blue);   color: var(--cls-blue); }
.class-chip.active.cc-gold   { background: linear-gradient(135deg,#ffd70055,#ffd70022); border-color: var(--cls-gold);   color: var(--cls-gold); }
.class-chip.active.cc-red    { background: linear-gradient(135deg,#ff444455,#ff444422); border-color: var(--cls-red);    color: var(--cls-red); }
.class-chip.active.cc-green  { background: linear-gradient(135deg,#4caf5055,#4caf5022); border-color: var(--cls-green);  color: var(--cls-green); }

.class-chip-dot {
    width: 8px; height: 8px; border-radius: 50%;
    flex-shrink: 0;
}
.cc-dot-teal   { background: var(--cls-teal); }
.cc-dot-purple { background: var(--cls-purple); }
.cc-dot-pink   { background: var(--cls-pink); }
.cc-dot-amber  { background: var(--cls-amber); }
.cc-dot-blue   { background: var(--cls-blue); }
.cc-dot-gold   { background: var(--cls-gold); }
.cc-dot-red    { background: var(--cls-red); }
.cc-dot-green  { background: var(--cls-green); }

.class-count-badge {
    font-size: .68rem;
    background: rgba(255,255,255,.12);
    padding: 1px 6px;
    border-radius: 10px;
    color: inherit;
}

/* ── Manage classes button ────────────────────────────────── */
.btn-manage-classes {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: .55rem 1.1rem;
    border-radius: var(--r-md);
    border: 1px solid rgba(42,250,223,.25);
    background: rgba(42,250,223,.07);
    color: var(--accent-teal);
    font-family: 'Inter', sans-serif;
    font-size: .85rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--ease);
    white-space: nowrap;
    flex-shrink: 0;
}
.btn-manage-classes:hover { background: rgba(42,250,223,.16); border-color: var(--accent-teal); }

/* ── No class selected placeholder ───────────────────────── */
.no-class-placeholder {
    text-align: center;
    padding: 5rem 2rem;
}
.no-class-placeholder i { font-size: 3.5rem; color: rgba(42,250,223,.15); display: block; margin-bottom: 1.2rem; }
.no-class-placeholder h3 { font-family: 'Poppins', sans-serif; font-size: 1.4rem; color: var(--text-secondary); margin-bottom: .6rem; }
.no-class-placeholder p  { color: var(--text-muted); font-size: .95rem; margin-bottom: 1.4rem; }

/* ── Manage Classes modal ─────────────────────────────────── */
.classes-modal { max-width: 540px; }

.class-list-manage {
    display: flex;
    flex-direction: column;
    gap: .55rem;
    max-height: 320px;
    overflow-y: auto;
    margin-bottom: 1.2rem;
    padding-right: .2rem;
}
.class-list-manage::-webkit-scrollbar       { width: 5px; }
.class-list-manage::-webkit-scrollbar-track { background: rgba(10,25,47,.4); border-radius: 10px; }
.class-list-manage::-webkit-scrollbar-thumb { background: rgba(42,250,223,.2); border-radius: 10px; }

.class-manage-row {
    display: flex;
    align-items: center;
    gap: .8rem;
    padding: .75rem 1rem;
    background: rgba(10,25,47,.55);
    border: 1px solid rgba(42,250,223,.08);
    border-radius: var(--r-md);
    transition: var(--ease);
}
.class-manage-row:hover { border-color: rgba(42,250,223,.2); }
.class-color-dot {
    width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0;
}
.class-manage-info { flex: 1; min-width: 0; }
.class-manage-name {
    font-weight: 600;
    font-size: .93rem;
    color: var(--text-primary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.class-manage-meta { font-size: .75rem; color: var(--text-muted); margin-top: 2px; }
.class-manage-actions { display: flex; gap: .4rem; flex-shrink: 0; }

/* ── Add Class form inside modal ─────────────────────────── */
.add-class-form {
    border-top: 1px solid rgba(42,250,223,.08);
    padding-top: 1.1rem;
}
.add-class-form-title {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: .9rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .8rem;
}
.color-picker-row {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    margin-top: .3rem;
}
.color-swatch {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--ease);
    flex-shrink: 0;
}
.color-swatch:hover  { transform: scale(1.15); }
.color-swatch.active { border-color: #fff; transform: scale(1.18); box-shadow: 0 0 10px rgba(255,255,255,.3); }
.color-swatch.sw-teal   { background: var(--cls-teal); }
.color-swatch.sw-purple { background: var(--cls-purple); }
.color-swatch.sw-pink   { background: var(--cls-pink); }
.color-swatch.sw-amber  { background: var(--cls-amber); }
.color-swatch.sw-blue   { background: var(--cls-blue); }
.color-swatch.sw-gold   { background: var(--cls-gold); }
.color-swatch.sw-red    { background: var(--cls-red); }
.color-swatch.sw-green  { background: var(--cls-green); }

.btn-add-class {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: .75rem 1.4rem;
    background: var(--grad-main);
    border: none;
    border-radius: var(--r-md);
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--ease);
    margin-top: .8rem;
}
.btn-add-class:hover { transform: translateY(-2px); box-shadow: var(--glow); }

/* ── Class header above content ───────────────────────────── */
.active-class-header {
    display: flex;
    align-items: center;
    gap: .8rem;
    margin-bottom: 1.5rem;
    padding: .7rem 1.1rem;
    background: rgba(22,33,62,.5);
    border-radius: var(--r-md);
    border: 1px solid rgba(42,250,223,.1);
}
.active-class-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.active-class-name { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 1.05rem; color: var(--text-primary); }
.active-class-meta { font-size: .8rem; color: var(--text-muted); }
.active-class-sep { flex: 1; }
.active-class-count {
    font-size: .78rem; font-weight: 700; padding: 3px 10px;
    border-radius: 20px;
    background: rgba(42,250,223,.08);
    border: 1px solid rgba(42,250,223,.2);
    color: var(--accent-teal);
}

/* ── Empty classes state ──────────────────────────────────── */
.classes-empty {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: .9rem;
}
.classes-empty i { font-size: 2rem; display: block; margin-bottom: .6rem; color: rgba(42,250,223,.15); }

/* ── Delete class confirm ─────────────────────────────────── */
.delete-class-modal { max-width: 400px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
    .class-selector-bar { flex-direction: column; align-items: flex-start; }
    .form-row-2 { grid-template-columns: 1fr; }
    .class-chips { gap: .4rem; }
}
@media (max-width: 480px) {
    .class-chip { font-size: .78rem; padding: .38rem .8rem; }
    .btn-manage-classes { width: 100%; justify-content: center; }
}










/* ── Stats bar fix ─────────────────────────────────────────── */
.mod-stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: .8rem;
    margin-bottom: 2rem;
}
.ms-card {
    background: rgba(22,33,62,.7);
    border: 1px solid rgba(42,250,223,.1);
    border-radius: 12px;
    padding: 1rem .8rem;
    text-align: center;
    transition: 0.3s cubic-bezier(.4,0,.2,1);
}
.ms-card:hover { transform: translateY(-3px); border-color: rgba(42,250,223,.3); }
.ms-card.teal   { border-color: rgba(42,250,223,.2); }
.ms-card.purple { border-color: rgba(138,43,226,.2); }
.ms-card.blue   { border-color: rgba(79,195,247,.2); }
.ms-card.amber  { border-color: rgba(255,154,60,.2); }
.ms-card.pink   { border-color: rgba(255,46,99,.2); }
.ms-card.gold   { border-color: rgba(255,215,0,.2); }
.ms-card.red    { border-color: rgba(255,68,68,.2); }
.ms-num {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-teal);
    display: block;
}
.ms-card.teal   .ms-num { color: var(--accent-teal); }
.ms-card.purple .ms-num { color: #b06aff; }
.ms-card.blue   .ms-num { color: var(--accent-blue); }
.ms-card.amber  .ms-num { color: var(--accent-amber); }
.ms-card.pink   .ms-num { color: var(--accent-pink); }
.ms-card.gold   .ms-num { color: var(--accent-gold); }
.ms-card.red    .ms-num { color: var(--accent-red); }
.ms-lbl {
    font-size: .68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: .3rem;
    display: block;
}

/* ── Tab bar fix ───────────────────────────────────────────── */
.att-tab-bar {
    display: flex;
    gap: .6rem;
    margin-bottom: 2rem;
    background: rgba(10,25,47,.5);
    border-radius: 20px;
    padding: 6px;
    width: fit-content;
}
.att-tab {
    display: flex; align-items: center; gap: 8px;
    padding: .7rem 1.5rem;
    border: none; border-radius: 12px;
    background: none; color: var(--text-muted);
    font-family: 'Inter', sans-serif; font-size: .95rem; font-weight: 600;
    cursor: pointer; transition: 0.3s cubic-bezier(.4,0,.2,1);
}
.att-tab:hover  { color: var(--text-primary); background: rgba(42,250,223,.08); }
.att-tab.active { background: linear-gradient(135deg, #8a2be2, #2afadf); color: #fff; }

/* ── Filter buttons fix ────────────────────────────────────── */
.mod-filter-btns { display: flex; gap: .5rem; flex-wrap: wrap; }
.mf-btn {
    padding: .5rem 1rem; border-radius: 20px;
    border: 1px solid rgba(42,250,223,.2);
    background: rgba(42,250,223,.06); color: var(--text-muted);
    font-family: 'Inter', sans-serif; font-size: .82rem; font-weight: 600;
    cursor: pointer; transition: 0.3s cubic-bezier(.4,0,.2,1);
}
.mf-btn:hover  { color: var(--text-primary); border-color: rgba(42,250,223,.4); }
.mf-btn.active { background: linear-gradient(135deg, #8a2be2, #2afadf); color: #fff; border-color: transparent; }

/* ── Table headers fix ─────────────────────────────────────── */
.sub-table-header {
    display: grid;
    grid-template-columns: 220px repeat(5, 1fr);
    gap: .5rem; padding: .4rem 1.2rem; margin-bottom: .3rem;
}
.sub-th-student, .sub-th-item {
    font-size: .66rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1px; color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
}
.sub-th-student { justify-content: flex-start; }
.sub-th-item.teal   { color: var(--accent-teal); }
.sub-th-item.purple { color: #b06aff; }
.sub-th-item.blue   { color: var(--accent-blue); }
.sub-th-item.amber  { color: var(--accent-amber); }
.sub-th-item.pink   { color: var(--accent-pink); }

.marks-table-header {
    display: grid;
    grid-template-columns: 200px repeat(4,1fr) 90px 80px;
    gap: .5rem; padding: .4rem 1.2rem; margin-bottom: .3rem;
}
.mth-student, .mth-col {
    font-size: .66rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1px; color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
}
.mth-student { justify-content: flex-start; }
.mth-max { color: rgba(136,146,176,.5); font-weight: 400; margin-left: 2px; }

/* ── Day stats fix ─────────────────────────────────────────── */
.day-stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .8rem; margin-bottom: 1.5rem;
}
.ds-card {
    background: rgba(22,33,62,.6);
    border: 1px solid rgba(42,250,223,.1);
    border-radius: 12px; padding: 1rem;
    text-align: center;
}
.ds-card.present { border-color: rgba(42,250,223,.2); }
.ds-card.late    { border-color: rgba(255,154,60,.2); }
.ds-card.absent  { border-color: rgba(255,68,68,.2); }
.ds-card.total   { border-color: rgba(79,195,247,.2); }
.ds-num {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem; font-weight: 700;
    color: var(--accent-teal);
}
.ds-card.present .ds-num { color: var(--accent-teal); }
.ds-card.late    .ds-num { color: var(--accent-amber); }
.ds-card.absent  .ds-num { color: var(--accent-red); }
.ds-card.total   .ds-num { color: var(--accent-blue); }
.ds-lbl {
    display: block; font-size: .72rem;
    color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 1px; margin-top: .2rem;
}