:root {
    --accent-gradient: linear-gradient(135deg, #00d2ff 0%, #0072ff 100%);
    --accent-color: #0072ff;
    --bg-color: #f0f3f8;
    --card-bg: rgba(255, 255, 255, 0.9);
    --border-color: rgba(255, 255, 255, 0.8);
    --text-main: #0f172a;
    --text-sub: #64748b;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    --safe-top: calc(var(--tg-safe-area-inset-top, 0px) + var(--tg-content-safe-area-inset-top, 0px));
}

body.dark-mode {
    --bg-color: #0b1329;
    --card-bg: rgba(23, 32, 54, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-sub: #94a3b8;
    --nav-bg: rgba(23, 32, 54, 0.95);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    -webkit-tap-highlight-color: transparent;
    transition:
        background-color 0.3s,
        color 0.3s,
        border-color 0.3s;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(20px + var(--safe-top)) 16px 20px;
}

body.in-student-mode {
    justify-content: flex-start;
    padding-bottom: calc(110px + env(safe-area-inset-bottom, 0px));
}

.container {
    width: 100%;
    max-width: 420px;
}
.center-screen {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 14px;
    animation: fadeIn 0.3s ease;
    width: 100%;
}
.center-screen.active {
    display: flex;
}

.app-header h1 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 6px;
}
.app-header p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.45;
}

.spinner {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 4px solid rgba(0, 114, 255, 0.15);
    border-top-color: var(--accent-color);
    animation: spin 0.9s linear infinite;
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.big-icon {
    width: 84px;
    height: 84px;
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 6px;
}
.big-icon.red {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
}
.big-icon.blue {
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
}

.id-chip {
    font-family: ui-monospace, Menlo, monospace;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 8px 14px;
    border-radius: 12px;
    font-size: 14px;
}
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}
.modal-overlay.active {
    display: flex;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 24px 20px;
    width: 100%;
    max-width: 380px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-height: 90vh;
    overflow-y: auto;
}
body.dark-mode .modal-card {
    background: rgba(23, 32, 54, 0.97);
}
body:not(.dark-mode) .modal-card {
    background: #fff;
}

.face-scan-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: rgba(0, 114, 255, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    border: 2px dashed var(--accent-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.98);
        box-shadow: 0 0 0 0 rgba(0, 114, 255, 0.4);
    }
    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 15px rgba(0, 114, 255, 0);
    }
    100% {
        transform: scale(0.98);
        box-shadow: 0 0 0 0 rgba(0, 114, 255, 0);
    }
}

.privacy-check-container {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    text-align: left;
    margin: 20px 0 16px;
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.4;
}
.privacy-check-container input[type='checkbox'] {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--accent-color);
    cursor: pointer;
}
.privacy-link {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
}

.btn-accept {
    width: 100%;
    padding: 14px;
    border-radius: 16px;
    border: none;
    background: var(--accent-gradient);
    color: white;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    opacity: 0.5;
    pointer-events: none;
    transition: all 0.2s;
}
.btn-accept.enabled {
    opacity: 1;
    pointer-events: auto;
    box-shadow: 0 8px 20px rgba(0, 114, 255, 0.3);
}

.btn-modal-close,
.btn-primary {
    width: 100%;
    padding: 12px;
    border-radius: 14px;
    border: none;
    background: var(--accent-gradient);
    color: white;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 16px;
}
.btn-ghost {
    width: 100%;
    padding: 11px;
    border-radius: 14px;
    margin-top: 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-sub);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}
.cam-wrap {
    position: relative;
    width: 230px;
    height: 230px;
    margin: 4px auto 16px;
    border-radius: 50%;
    overflow: hidden;
    background: #000;
    border: 4px solid rgba(0, 114, 255, 0.35);
}
.cam-wrap.ok {
    border-color: #10b981;
}
.cam-wrap.bad {
    border-color: #ef4444;
}
.cam-wrap video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}
.cam-progress {
    height: 6px;
    border-radius: 6px;
    background: rgba(0, 114, 255, 0.12);
    overflow: hidden;
    margin: 12px 0 4px;
}
.cam-progress > div {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    transition: width 0.3s;
}
#camStatus {
    font-size: 14px;
    font-weight: 600;
    min-height: 20px;
}
#camHint {
    font-size: 12px;
    color: var(--text-sub);
    margin-top: 6px;
}
.screen-view {
    display: none;
    width: 100%;
    animation: fadeIn 0.3s ease;
}
.screen-view.active {
    display: block;
}

.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.profile-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--card-shadow);
    margin-bottom: 20px;
}
.user-info {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}
.avatar {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    flex-shrink: 0;
    background: var(--accent-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(0, 114, 255, 0.3);
}
.user-details {
    min-width: 0;
}
.user-details h3 {
    font-size: 17px;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.user-details p {
    font-size: 13px;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 6px;
}
.status-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    display: inline-block;
}

.lang-switch {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
    background: rgba(0, 114, 255, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    padding: 2px;
}
.lang-switch img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.main-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--card-shadow);
    margin-bottom: 20px;
}
.main-card h2 {
    margin-bottom: 6px;
}
.main-card p {
    color: var(--text-sub);
    line-height: 1.45;
}

.icon-wrapper {
    width: 76px;
    height: 76px;
    background: rgba(0, 114, 255, 0.12);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px auto;
    color: var(--accent-color);
    font-size: 32px;
}

.now-card {
    text-align: left;
}
.now-card .lbl {
    font-size: 12px;
    color: var(--text-sub);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 16px;
}
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 16px;
    text-align: center;
    box-shadow: var(--card-shadow);
}
.stat-card.full-width {
    grid-column: span 2;
}
.stat-val {
    font-size: 24px;
    font-weight: 800;
    margin-top: 4px;
}
.stat-label {
    font-size: 12px;
    color: var(--text-sub);
    font-weight: 600;
    text-transform: uppercase;
}

.text-green {
    color: #10b981;
}
.text-red {
    color: #ef4444;
}
.text-blue {
    color: #0072ff;
}

.section-title {
    font-size: 15px;
    font-weight: 700;
    margin: 20px 0 8px;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.timetable-day {
    margin-bottom: 16px;
    text-align: left;
}
.day-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 8px;
}
.day-title .today-badge {
    font-size: 11px;
    background: var(--accent-gradient);
    color: #fff;
    padding: 2px 8px;
    border-radius: 8px;
}

.lesson-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 12px 16px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}
.lesson-item.now {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}
.lesson-info {
    min-width: 0;
}
.lesson-info h4 {
    font-size: 14px;
    font-weight: 700;
}
.lesson-info p {
    font-size: 12px;
    color: var(--text-sub);
}
.lesson-time {
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
    padding: 6px 10px;
    border-radius: 10px;
}
.muted-box {
    text-align: center;
    color: var(--text-sub);
    font-size: 14px;
    padding: 24px 8px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    margin-bottom: 12px;
}
.setting-item h4 {
    font-size: 15px;
}
.setting-item p {
    font-size: 12px;
    color: var(--text-sub);
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
    flex-shrink: 0;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 34px;
}
.slider:before {
    position: absolute;
    content: '';
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: var(--accent-color);
}
input:checked + .slider:before {
    transform: translateX(22px);
}

.bottom-nav {
    display: none;
    position: fixed;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 400px;
    height: 72px;
    background: var(--nav-bg);
    backdrop-filter: blur(25px);
    border: 1px solid var(--border-color);
    border-radius: 36px;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    padding: 0 12px;
    z-index: 1000;
}
.bottom-nav.active {
    display: flex;
}

.nav-link {
    color: var(--text-sub);
    font-size: 20px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
}
.nav-link.active {
    color: var(--accent-color);
    background: rgba(0, 114, 255, 0.12);
}

.nav-qr-btn {
    position: relative;
    top: -16px;
    width: 64px;
    height: 64px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 24px;
    box-shadow: 0 10px 25px rgba(0, 114, 255, 0.4);
    cursor: pointer;
    border: 4px solid var(--bg-color);
}
.nav-qr-btn.busy {
    opacity: 0.6;
    pointer-events: none;
}

.status-box {
    margin-top: 16px;
    padding: 14px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 600;
    display: none;
    line-height: 1.4;
}
.status-box.success {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}
.status-box.error {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}
.status-box.info {
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
    background: rgba(0, 114, 255, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-sub);
    font-size: 17px;
}
.header-actions {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-shrink: 0;
}
.header-actions .icon-btn {
    width: 36px;
    height: 36px;
    font-size: 15px;
}
.header-actions .lang-switch {
    width: 36px;
    height: 36px;
}
.user-details p {
    white-space: nowrap;
}
.role-chip {
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 8px;
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
    text-transform: uppercase;
}
.role-chip.owner {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
}
.role-chip.teacher {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 20px 0 10px;
    gap: 10px;
}
.section-head .section-title {
    margin: 0;
}
.btn-small {
    padding: 8px 14px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    background: var(--accent-gradient);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}
.btn-small.ghost {
    background: transparent;
    color: var(--accent-color);
    border: 1px solid var(--border-color);
}
.btn-small.danger {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
}
.btn-small.success {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}
.btn-small:disabled {
    opacity: 0.5;
    pointer-events: none;
}

.card-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 14px 16px;
    display: flex;
    gap: 12px;
    align-items: center;
    text-align: left;
}
.item.clickable {
    cursor: pointer;
}
.item.clickable:active {
    transform: scale(0.99);
}
.item .grow {
    flex: 1;
    min-width: 0;
}
.item h4 {
    font-size: 14px;
    font-weight: 700;
    overflow: hidden;
    text-overflow: ellipsis;
}
.item p {
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.4;
}
.item .ic {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    flex-shrink: 0;
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
}
.item .ic.green {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}
.item .ic.red {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
}
.item .ic.amber {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
}
.item .actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.task-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 16px;
    text-align: left;
    box-shadow: var(--card-shadow);
}
.task-card.done {
    opacity: 0.6;
}
.task-top {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 8px;
}
.task-top h4 {
    font-size: 15px;
    font-weight: 800;
}
.task-meta {
    font-size: 12px;
    color: var(--text-sub);
}
.task-desc {
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 8px 0 12px;
}
.task-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(0, 114, 255, 0.08);
    cursor: pointer;
    margin-bottom: 10px;
}
.task-file i {
    color: var(--accent-color);
    font-size: 18px;
}
.task-file span {
    font-size: 13px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.badge {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 8px;
    white-space: nowrap;
}
.badge.green {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}
.badge.gray {
    background: rgba(148, 163, 184, 0.18);
    color: var(--text-sub);
}
.badge.blue {
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
}
.field {
    text-align: left;
    margin-bottom: 14px;
}
.field label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-sub);
    margin-bottom: 6px;
    text-transform: uppercase;
}
.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 15px;
    border: 1px solid var(--border-color);
    background: rgba(127, 127, 127, 0.08);
    color: var(--text-main);
    outline: none;
    font-family: inherit;
}
body:not(.dark-mode) .field input,
body:not(.dark-mode) .field select,
body:not(.dark-mode) .field textarea {
    border-color: #dbe2ea;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: var(--accent-color);
}
.field textarea {
    min-height: 110px;
    resize: vertical;
}
.field .hint {
    font-size: 12px;
    color: var(--text-sub);
    margin-top: 6px;
}
.file-drop {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 18px;
    text-align: center;
    cursor: pointer;
    color: var(--text-sub);
    font-size: 14px;
}
body:not(.dark-mode) .file-drop {
    border-color: #cbd5e1;
}
.file-drop.has {
    border-style: solid;
    border-color: var(--accent-color);
    color: var(--text-main);
}
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.chip {
    padding: 8px 12px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: rgba(127, 127, 127, 0.06);
    color: var(--text-main);
}
.chip.on {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}
.search {
    position: relative;
    margin-bottom: 12px;
}
.search input {
    padding-left: 38px !important;
}
.search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-sub);
}
.sheet-overlay {
    align-items: flex-end;
    padding: 0;
}
.sheet {
    width: 100%;
    max-width: 480px;
    max-height: 88vh;
    overflow-y: auto;
    background: var(--card-bg);
    border-radius: 28px 28px 0 0;
    padding: 20px 18px calc(24px + env(safe-area-inset-bottom, 0px));
    animation: slideUp 0.25s ease;
}
body.dark-mode .sheet {
    background: #131c33;
}
body:not(.dark-mode) .sheet {
    background: #fff;
}
.sheet-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    gap: 10px;
}
.sheet-head h3 {
    font-size: 18px;
}
.sheet-close {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: rgba(127, 127, 127, 0.15);
    color: var(--text-main);
    cursor: pointer;
}
@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0.6;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.option-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 16px;
    cursor: pointer;
    text-align: left;
    border: 1px solid var(--border-color);
    background: rgba(127, 127, 127, 0.05);
}
.option:active {
    transform: scale(0.99);
}
.option .ic {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    background: rgba(0, 114, 255, 0.12);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}
.option h4 {
    font-size: 15px;
}
.option p {
    font-size: 12px;
    color: var(--text-sub);
}
.qr-screen {
    text-align: center;
}
.qr-box {
    background: #fff;
    padding: 16px;
    border-radius: 20px;
    display: inline-block;
    margin: 8px 0 14px;
}
.qr-box img,
.qr-box canvas {
    display: block;
    margin: 0 auto;
}
.qr-timer {
    font-size: 34px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}
.qr-sub {
    font-size: 13px;
    color: var(--text-sub);
    margin-top: 4px;
}
.qr-count {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    margin-top: 12px;
    padding: 8px 14px;
    border-radius: 12px;
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    font-weight: 800;
}
.qr-closed {
    font-size: 18px;
    font-weight: 800;
    color: #ef4444;
    padding: 40px 0;
}
.progress {
    height: 6px;
    border-radius: 6px;
    background: rgba(0, 114, 255, 0.12);
    overflow: hidden;
    margin-top: 10px;
}
.progress > div {
    height: 100%;
    background: var(--accent-gradient);
    transition: width 0.5s linear;
}
.att-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    cursor: pointer;
}
.att-row .num {
    width: 26px;
    font-size: 12px;
    color: var(--text-sub);
    font-weight: 700;
}
.att-row .grow {
    flex: 1;
    min-width: 0;
}
.att-row h4 {
    font-size: 14px;
}
.att-row p {
    font-size: 11px;
    color: var(--text-sub);
}
.att-toggle {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
    flex-shrink: 0;
}
.att-row.on .att-toggle {
    background: rgba(16, 185, 129, 0.18);
    color: #10b981;
}

.toast {
    position: fixed;
    left: 50%;
    top: calc(16px + var(--safe-top));
    transform: translateX(-50%) translateY(-120px);
    background: #0f172a;
    color: #fff;
    padding: 12px 18px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 600;
    z-index: 3000;
    transition: transform 0.25s ease;
    max-width: calc(100% - 32px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.toast.show {
    transform: translateX(-50%) translateY(0);
}
.toast.error {
    background: #b91c1c;
}
.toast.success {
    background: #047857;
}
.empty {
    text-align: center;
    color: var(--text-sub);
    font-size: 14px;
    padding: 28px 12px;
}
.empty i {
    font-size: 28px;
    display: block;
    margin-bottom: 10px;
    opacity: 0.6;
}
.tabs-inline {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
    overflow-x: auto;
}
.stat-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.big-icon.amber {
    background: rgba(245, 158, 11, 0.14);
    color: #f59e0b;
}
.reg-card {
    width: 100%;
    text-align: left;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 20px;
}
.select-btn {
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 15px;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: rgba(127, 127, 127, 0.08);
    color: var(--text-sub);
}
body:not(.dark-mode) .select-btn {
    border-color: #dbe2ea;
}
.select-btn.has {
    color: var(--text-main);
    font-weight: 600;
}
.select-btn i {
    font-size: 12px;
    opacity: 0.7;
}
.reg-id {
    font-size: 13px;
    color: var(--text-sub);
    margin: 2px 0 2px;
}
.reg-id b {
    font-family: ui-monospace, Menlo, monospace;
    color: var(--text-main);
}
.reg-note {
    font-size: 12.5px;
    color: var(--text-sub);
    line-height: 1.45;
    margin-top: 12px;
    text-align: center;
}
.reg-note:empty {
    display: none;
}
.reg-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
    padding: 8px 2px;
}
.reg-row i {
    width: 20px;
    text-align: center;
    color: var(--accent-color);
}
.btn-primary:disabled {
    opacity: 0.5;
    pointer-events: none;
}
.reg-item {
    align-items: center;
}
.reg-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}
.reg-actions .btn-small {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}