/* ========================================= */
/* TECH MONSTER - SKyGLASS SCHOLAR THEME    */
/* Daylight Optimized | Clean | Academic    */
/* ========================================= */

body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #e0f2fe, #f8fafc);
    min-height: 100vh;
    color: #1e293b;
}

/* ================= NAVBAR ================= */

.navbar {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.navbar-brand {
    font-weight: 600;
    letter-spacing: 0.5px;
    color: #2563eb !important;
}

.app-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #0f172a;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
    text-decoration: none;
    line-height: 1;
}

.app-logo::before {
    content: "TM";
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    color: #ffffff;
    background: linear-gradient(135deg, var(--tm-accent, #2563eb), var(--tm-accent-2, #4f46e5));
    box-shadow: 0 8px 18px rgba(37,99,235,0.22);
    font-size: 0.78rem;
}

/* ================= GLASS CARD ================= */

.glass-card {
    background: rgba(255,255,255,0.75);
    backdrop-filter: blur(18px);
    border-radius: 18px;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-2px);
}

/* ================= HEADINGS ================= */

h1, h2, h3, h4, h5 {
    font-weight: 600;
    color: #0f172a;
}

/* ================= INPUTS ================= */

.form-control,
.form-select {
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(0,0,0,0.1);
    color: #1e293b;
    border-radius: 12px;
}

.form-control::placeholder {
    color: rgba(30,41,59,0.5);
}

/* ================= PRIMARY BUTTON ================= */

.glass-btn {
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    border: none;
    border-radius: 30px;
    color: #ffffff;
    font-weight: 600;
    padding: 12px 28px;
    transition: 0.3s ease;
    box-shadow: 0 4px 15px rgba(79,70,229,0.25);
    text-decoration: none;
}

.glass-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79,70,229,0.4);
}

/* ================= SECONDARY BUTTON ================= */

.secondary-btn {
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 30px;
    color: #1e293b;
    padding: 12px 28px;
    transition: 0.3s ease;
    text-decoration: none;
}

.secondary-btn:hover {
    background: #f1f5f9;
}

/* ================= QUIZ OPTIONS ================= */

.option-btn {
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 14px;
    color: #1e293b;
    padding: 14px;
    font-weight: 500;
    transition: 0.2s ease;
    text-decoration: none;
}

.option-btn:hover {
    background: #e0f2fe;
    border-color: #2563eb;
}

.selected-option {
    background: #dbeafe;
    border: 1px solid #2563eb;
    font-weight: 600;
    text-decoration: none;
}

/* ================= TIMER ================= */

#timer {
    font-weight: 600;
    color: #dc2626;
}

/* ================= PROGRESS BAR ================= */

.progress {
    background: rgba(0,0,0,0.05);
    border-radius: 20px;
}

.progress-bar {
    background: linear-gradient(90deg, #2563eb, #4f46e5);
}

/* ================= HALL OF FAME ================= */

.list-group-item {
    background: #ffffff !important;
    border: 1px solid rgba(0,0,0,0.06) !important;
    color: #1e293b !important;
    border-radius: 12px;
    margin-bottom: 8px;
}

/* ================= DIAGRAM IMAGE ================= */

#questionImage img {
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.08);
    padding: 6px;
    background: #ffffff;
}
/* ================= NOTES ACCORDION ================= */

.accordion-button {
    background: #ffffff;
    color: #1e293b;
    font-weight: 600;
    border-radius: 12px !important;
}

.accordion-button:not(.collapsed) {
    background: #dbeafe;
    color: #1e293b;
}

.accordion-body {
    background: #ffffff;
    border-radius: 12px;
}
/* ========================= */
/* Tech Monster Buttons */
/* ========================= */

.tm-btn-primary {
    padding: 12px 28px;
    border-radius: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: 0.3s ease;
    backdrop-filter: blur(10px);

    background: linear-gradient(135deg, #6a8dff, #9f6bff);
    color: white;
    border: none;
}

.tm-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(100, 100, 255, 0.3);
    color: white;
}
#confettiCanvas {
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
/* ================= ADDICTIVE COMPETITION UPGRADES ================= */
.avatar-bubble,
.avatar-result {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 42px;
    background: linear-gradient(135deg, #ffffff, #dbeafe);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.18);
    border: 2px solid rgba(37, 99, 235, 0.25);
    overflow: hidden;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    padding: 4px;
    font-size: clamp(16px, 7vw, 42px);
}

.avatar-result {
    width: 110px;
    height: 110px;
    font-size: 64px;
    margin-inline: auto;
    animation: popAvatar 0.8s ease;
}

@keyframes popAvatar {
    0% { transform: scale(0.6) rotate(-8deg); opacity: 0; }
    70% { transform: scale(1.08) rotate(4deg); opacity: 1; }
    100% { transform: scale(1) rotate(0deg); }
}

.badge.text-bg-warning {
    color: #1e293b !important;
    background: #fde68a !important;
}

#loginMessage {
    color: #b45309;
    font-weight: 600;
}

/* ================= OWNED ACCOUNT UPGRADES ================= */
:root {
    --tm-accent: #2563eb;
    --tm-accent-2: #4f46e5;
}

body[data-accent="green"] {
    --tm-accent: #059669;
    --tm-accent-2: #0f766e;
}

body[data-accent="rose"] {
    --tm-accent: #e11d48;
    --tm-accent-2: #be123c;
}

body[data-accent="gold"] {
    --tm-accent: #d97706;
    --tm-accent-2: #b45309;
    background: linear-gradient(135deg, #fff7ed, #f8fafc);
}

.hero-panel {
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(224,242,254,0.8));
    border-radius: 18px;
    border: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 10px 30px rgba(15,23,42,0.08);
}

.glass-btn,
.progress-bar,
.tm-btn-primary {
    background: linear-gradient(135deg, var(--tm-accent), var(--tm-accent-2)) !important;
}

.nav-action {
    padding: 8px 16px;
    border-radius: 14px;
    border: 0;
}

.topic-pill {
    border: 1px solid rgba(37,99,235,0.18);
    background: #eff6ff;
    color: #1d4ed8;
    border-radius: 999px;
    padding: 6px 12px;
    font-weight: 700;
    font-size: 0.82rem;
    white-space: nowrap;
}

.quiz-feedback {
    min-height: 42px;
    border-radius: 12px;
    padding: 10px 12px;
    font-weight: 700;
}

.quiz-feedback.good {
    background: #dcfce7;
    color: #166534;
}

.quiz-feedback.needs-work {
    background: #fee2e2;
    color: #991b1b;
}

.correct-option {
    border-color: #16a34a !important;
    background: #dcfce7 !important;
}

.wrong-option {
    border-color: #dc2626 !important;
    background: #fee2e2 !important;
}

.badge-shelf {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tm-badge {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    border-radius: 999px;
    padding: 7px 12px;
    color: #0f172a;
    background: #fef3c7;
    border: 1px solid #f59e0b;
    font-weight: 700;
    font-size: 0.85rem;
}

.empty-state {
    color: #64748b;
    font-size: 0.92rem;
}

.mission-progress,
.mini-progress {
    height: 16px;
}

.topic-row {
    margin-bottom: 10px;
}

.tm-link {
    color: var(--tm-accent);
    font-weight: 700;
    text-decoration: none;
}

.avatar-picker,
.accent-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.avatar-choice {
    width: 58px;
    height: 48px;
    border: 1px solid rgba(15,23,42,0.15);
    border-radius: 12px;
    background: #ffffff;
    color: #0f172a;
    font-weight: 800;
}

.avatar-choice.selected {
    border-color: var(--tm-accent);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

.accent-swatch {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 3px solid #ffffff;
    box-shadow: 0 0 0 1px rgba(15,23,42,0.18);
}

.accent-swatch.selected {
    box-shadow: 0 0 0 3px rgba(15,23,42,0.22);
}

.accent-swatch.blue { background: #2563eb; }
.accent-swatch.green { background: #059669; }
.accent-swatch.rose { background: #e11d48; }
.accent-swatch.gold { background: #d97706; }

.brand-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 28px 16px;
    color: #475569;
    font-weight: 700;
}

.sp-logo {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #0f172a, #2563eb);
    color: #ffffff;
    font-weight: 900;
    letter-spacing: 0;
    box-shadow: 0 10px 22px rgba(15,23,42,0.18);
}

.avatar-bubble.has-photo,
.avatar-result.has-photo {
    overflow: hidden;
    padding: 0;
}

.avatar-bubble img,
.avatar-result img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-choice.locked,
.accent-swatch.locked {
    opacity: 0.45;
    cursor: not-allowed;
    color: #64748b;
}

.unlock-panel {
    border: 1px dashed rgba(217,119,6,0.45);
    background: #fffbeb;
    border-radius: 12px;
    padding: 12px;
    color: #78350f;
}

.admin-login {
    max-width: 520px;
    margin-inline: auto;
}

.admin-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid rgba(15,23,42,0.08);
    background: #ffffff;
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 10px;
}

.certificate-preview {
    background: #f8fafc;
    border-radius: 14px;
    padding: 16px;
}

.certificate {
    background: #ffffff;
    color: #0f172a;
    padding: 22px;
    border-radius: 8px;
    box-shadow: 0 12px 30px rgba(15,23,42,0.12);
}

.certificate-border {
    min-height: 520px;
    border: 5px double #d97706;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
    padding: 28px;
}

.certificate-top {
    color: #b45309;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.certificate h1 {
    font-size: 2.4rem;
    color: #0f172a;
}

.certificate h2 {
    color: #b45309;
}

.certificate-photo,
.certificate-avatar {
    width: 116px;
    height: 116px;
    border-radius: 999px;
    border: 4px solid #f59e0b;
    display: grid;
    place-items: center;
    object-fit: cover;
    font-size: 34px;
    font-weight: 900;
    background: #fffbeb;
}

.certificate-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.certificate-stats span {
    border-radius: 999px;
    background: #fef3c7;
    padding: 8px 12px;
    font-weight: 700;
}

.certificate-date {
    color: #64748b;
}

@media print {
    body * {
        visibility: hidden;
    }

    .certificate-preview,
    .certificate-preview * {
        visibility: visible;
    }

    .certificate-preview {
        position: absolute;
        inset: 0;
        padding: 0;
        background: #ffffff;
    }

    .certificate {
        box-shadow: none;
    }
}

@media (max-width: 576px) {
    .avatar-bubble {
        width: 62px;
        height: 62px;
        font-size: 28px;
    }

    .glass-card,
    .hero-panel {
        border-radius: 14px;
    }
}

/* ===== Upgrade: subject chooser, bigger Hall of Fame, dark theme ===== */
.subject-select {
    min-width: 190px;
    max-width: 260px;
    border-radius: 999px;
    font-weight: 700;
}

.hall-list,
#dashboardHall {
    display: grid;
    gap: 10px;
}

.hall-item {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    border: 0 !important;
    border-radius: 18px !important;
    background: rgba(255,255,255,.13) !important;
    color: inherit !important;
    overflow: hidden;
}

.hall-identity {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.hall-identity strong,
.hall-identity small {
    display: block;
    line-height: 1.15;
}

.hall-identity small {
    opacity: .75;
    font-size: 12px;
}

.hall-avatar {
    width: 42px;
    height: 42px;
    min-width: 42px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 900;
    background: rgba(255,255,255,.22);
    border: 2px solid rgba(255,255,255,.5);
    overflow: hidden;
}

.hall-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hall-item.top-three {
    padding: 14px 16px !important;
    background: linear-gradient(135deg, rgba(255,255,255,.28), rgba(255,255,255,.1)) !important;
    border: 1px solid rgba(255,255,255,.28) !important;
}

.hall-item.top-three .hall-avatar {
    width: 64px;
    height: 64px;
    min-width: 64px;
    font-size: 18px;
    box-shadow: 0 12px 25px rgba(0,0,0,.2);
}

.accent-swatch.dark {
    background: linear-gradient(135deg, #111827, #334155);
}

body[data-accent="dark"] {
    background: radial-gradient(circle at top left, #334155, #111827 55%, #020617);
    color: #f8fafc;
}

body[data-accent="dark"] .glass-card,
body[data-accent="dark"] .hero-panel,
body[data-accent="dark"] .certificate {
    background: rgba(15, 23, 42, .78);
    color: #f8fafc;
    border-color: rgba(148, 163, 184, .25);
}

body[data-accent="dark"] .form-control,
body[data-accent="dark"] .form-select,
body[data-accent="dark"] textarea {
    background: rgba(15, 23, 42, .8);
    color: #f8fafc;
    border-color: rgba(148, 163, 184, .45);
}

body[data-accent="dark"] .notes-card {
    background: rgba(15, 23, 42, .85) !important;
    color: #f8fafc;
}

@media (max-width: 576px) {
    .hall-item.top-three .hall-avatar {
        width: 54px;
        height: 54px;
        min-width: 54px;
    }
    .subject-select {
        max-width: 100%;
        width: 100%;
    }
}


/* ===== GradeUP x Tech Monster artistic upgrade ===== */
.app-logo::before, .sp-logo { display: none !important; content: none !important; }
.app-logo {
    font-size: clamp(1.25rem, 3vw, 2.15rem);
    font-weight: 950;
    letter-spacing: -0.06em;
    text-transform: none;
    background: linear-gradient(90deg, var(--tm-accent), var(--tm-accent-2), #f59e0b);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    filter: drop-shadow(0 8px 18px rgba(37,99,235,.22));
}
.app-logo::after { content: "⚡"; margin-left: .35rem; color: #f59e0b; -webkit-text-fill-color: #f59e0b; }
.brand-footer { margin-top: 30px; position: relative; flex-direction: column; gap: 2px; }
.signature-footer { font-weight: 900; text-align: center; }
.signature-mark { font-size: clamp(1.2rem, 3vw, 2rem); font-weight: 950; background: linear-gradient(90deg,#0f172a,var(--tm-accent),#f59e0b); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: -0.04em; }
.signature-line { display:block; font-size: .76rem; letter-spacing:.25em; text-transform: uppercase; color:#64748b; }
body[data-accent="purple"] { --tm-accent:#7c3aed; --tm-accent-2:#ec4899; background:linear-gradient(135deg,#f5f3ff,#fdf2f8); }
body[data-accent="ocean"] { --tm-accent:#0891b2; --tm-accent-2:#2563eb; background:linear-gradient(135deg,#ecfeff,#eff6ff); }
body[data-accent="fire"] { --tm-accent:#ef4444; --tm-accent-2:#f97316; background:linear-gradient(135deg,#fff7ed,#fef2f2); }
body[data-accent="forest"] { --tm-accent:#16a34a; --tm-accent-2:#65a30d; background:linear-gradient(135deg,#f0fdf4,#f7fee7); }
body[data-accent="neon"] { --tm-accent:#06b6d4; --tm-accent-2:#a855f7; background:radial-gradient(circle at top,#e0f2fe,#f5f3ff 45%,#fff); }
body[data-accent="dark"] { --tm-accent:#38bdf8; --tm-accent-2:#a78bfa; background:linear-gradient(135deg,#020617,#111827); color:#e5e7eb; }
body[data-accent="dark"] .glass-card, body[data-accent="dark"] .hero-panel, body[data-accent="dark"] .navbar { background:rgba(15,23,42,.82); border-color:rgba(148,163,184,.18); color:#e5e7eb; }
body[data-accent="dark"] h1, body[data-accent="dark"] h2, body[data-accent="dark"] h3, body[data-accent="dark"] h4, body[data-accent="dark"] h5 { color:#f8fafc; }
.accent-swatch.purple{background:#7c3aed}.accent-swatch.ocean{background:#0891b2}.accent-swatch.fire{background:#ef4444}.accent-swatch.forest{background:#16a34a}.accent-swatch.neon{background:#06b6d4}.accent-swatch.dark{background:#0f172a}
.avatar-choice { width: 92px; height: 96px; padding: 6px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:3px; overflow:hidden; }
.avatar-choice img { width: 54px; height:54px; object-fit:cover; border-radius:18px; }
.avatar-choice small { font-size:.62rem; line-height:1; }
.hall-avatar, .avatar-bubble, .avatar-result { background: linear-gradient(135deg, rgba(255,255,255,.9), rgba(219,234,254,.8)); }
.hall-avatar img, .avatar-bubble img, .avatar-result img { width:100%; height:100%; object-fit:cover; border-radius:inherit; }
.quiz-live-header { background: linear-gradient(135deg, rgba(255,255,255,.7), rgba(219,234,254,.65)); border:1px solid rgba(37,99,235,.12); padding:12px; border-radius:18px; font-weight:800; }
.quiz-progress { height:20px; overflow:hidden; }
.event-stack { display:grid; gap:10px; }
.event-card, .assignment-card { background:rgba(255,255,255,.78); border:1px solid rgba(15,23,42,.08); border-radius:16px; padding:14px; }
.event-card.test_week { border-left:6px solid #7c3aed; }.event-card.exam{border-left:6px solid #dc2626}.event-card.competition{border-left:6px solid #f59e0b}
.control-center .glass-card { border-top: 4px solid var(--tm-accent); }
.control-tile h4::before { content:"✦ "; color:var(--tm-accent); }
.assignment-admin-item blockquote { margin:6px 0 0; padding:7px 10px; border-left:3px solid var(--tm-accent); background:#f8fafc; border-radius:8px; font-size:.82rem; }
.study-card.monster-note { display:grid; grid-template-columns: minmax(150px, 240px) 1fr; gap:18px; background:rgba(255,255,255,.82); border:1px solid rgba(15,23,42,.08); border-radius:22px; padding:18px; margin-bottom:20px; box-shadow:0 12px 26px rgba(15,23,42,.08); }
.study-art { display:grid; place-items:center; }
.study-image { max-width:100%; max-height:220px; object-fit:contain; border-radius:18px; background:#fff; padding:8px; }
.study-placeholder { min-height:180px; width:100%; display:grid; place-items:center; text-align:center; border:2px dashed rgba(37,99,235,.28); border-radius:18px; color:#475569; padding:16px; }
.study-placeholder span { font-size:3rem; }
.study-section h6 { font-weight:900; color:var(--tm-accent); margin-top:14px; }
.memory-tip { background:#fffbeb; border:1px solid #fde68a; border-radius:14px; padding:12px; margin-top:14px; color:#78350f; font-weight:700; }
@media (max-width: 760px){ .study-card.monster-note { grid-template-columns:1fr; } .brand-footer{padding-bottom:34px} }


.diagram-preview {
    min-height: 95px;
    border: 1px dashed rgba(255,255,255,.35);
    border-radius: 18px;
    display: grid;
    place-items: center;
    overflow: hidden;
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.72);
    font-size: .8rem;
}
.diagram-preview img {
    width: 100%;
    max-height: 150px;
    object-fit: contain;
    display: block;
}
.diagram-badge {
    display: inline-flex;
    margin-left: .35rem;
    padding: .15rem .45rem;
    border-radius: 999px;
    font-size: .7rem;
    background: rgba(91,255,198,.18);
    color: #baffed;
}
.avatar-choice small { display:block; font-size:.68rem; margin-top:.25rem; }


/* ===== Login page staff button upgrade ===== */
.login-role-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 8px;
    border-radius: 22px;
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.08);
}
.login-role-tab {
    border: 0;
    border-radius: 18px;
    padding: 12px 14px;
    font-weight: 900;
    color: #334155;
    background: rgba(255, 255, 255, 0.72);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.login-role-tab:hover { transform: translateY(-1px); }
.login-role-tab.active {
    color: #ffffff;
    background: linear-gradient(135deg, var(--tm-accent), var(--tm-accent-2));
    box-shadow: 0 10px 24px rgba(37, 99, 235, .25);
}
.login-role-tab.admin-tab.active {
    background: linear-gradient(135deg, #111827, #7c3aed, #f59e0b);
}
body.admin-login-mode .glass-card:first-child {
    border-top: 5px solid #7c3aed;
    box-shadow: 0 16px 40px rgba(124, 58, 237, .18);
}
body.admin-login-mode #loginTitle::before {
    content: "⚙️ ";
}
@media (max-width: 420px) {
    .login-role-tabs { grid-template-columns: 1fr; }
}