/* ============================================================
   Classroomscreen Clone — Styles
   ============================================================ */

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --ff: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* === LIGHT MODE (default) === */
    --clr-toolbar-bg: #f0f2f8;
    --clr-toolbar-text: #44475a;
    --clr-toolbar-hover: rgba(0, 0, 0, 0.06);
    --clr-toolbar-highlight: #6c5ce7;
    --clr-toolbar-collapse-bg: #f0f2f8;
    --clr-toolbar-collapse-hover: #dde0eb;
    --clr-toolbar-shadow: rgba(0, 0, 0, 0.12);

    /* Widget — shares toolbar palette */
    --clr-widget-bg: #f0f2f8;
    /* same as toolbar */
    --clr-widget-border: rgba(0, 0, 0, 0.07);
    --clr-widget-shadow: rgba(0, 0, 0, 0.1);
    --clr-widget-drag-bg: #e4e7f0;
    /* slightly darker header */
    --clr-text: #44475a;
    /* same as toolbar text */
    --clr-text-muted: #888ba0;
    --clr-accent: #6c5ce7;
    /* same as toolbar highlight */
    --clr-border: rgba(0, 0, 0, 0.09);
    --clr-action-btn-bg: rgba(0, 0, 0, 0.04);
    --clr-action-btn-hover-bg: rgba(0, 0, 0, 0.08);
    --clr-close-btn-hover-bg: rgba(0, 0, 0, 0.08);
    --clr-close-btn-color: #aab;
    --clr-pie-empty: #d8dce8;

    /* Poll emoji colors */
    --poll-0: #4caf50;
    --poll-1: #8bc34a;
    --poll-2: #ffc107;
    --poll-3: #ff9800;
    --poll-4: #f44336;

    /* Sizing */
    --radius: 20px;
    --radius-sm: 12px;
    /* Top Toolbar Buttons */
    --clr-top-btn-bg: rgba(255, 255, 255, 0.75);
    --clr-top-btn-hover: rgba(255, 255, 255, 0.95);
    --clr-top-btn-border: rgba(255, 255, 255, 0.5);
    --clr-top-btn-text: #444;

    /* Card Backgrounds */
    --clr-card-bg: #ffffff;

    /* Background Dimming */
    --bg-filter: brightness(1);

    /* Theme transition speed */
    --theme-transition: 0.35s ease;
}

/* === DARK MODE === */
[data-theme="dark"] {
    --clr-toolbar-bg: #2d2d3a;
    --clr-toolbar-text: #c5c7d4;
    --clr-toolbar-hover: rgba(255, 255, 255, 0.09);
    --clr-toolbar-highlight: #a29bfe;
    --clr-toolbar-collapse-bg: #2d2d3a;
    --clr-toolbar-collapse-hover: #3d3d50;
    --clr-toolbar-shadow: rgba(0, 0, 0, 0.3);

    /* Widget — shares toolbar palette */
    --clr-widget-bg: #2d2d3a;
    /* same as toolbar */
    --clr-widget-border: rgba(255, 255, 255, 0.07);
    --clr-widget-shadow: rgba(0, 0, 0, 0.45);
    --clr-widget-drag-bg: #252733;
    /* slightly darker header */
    --clr-text: #c5c7d4;
    /* same as toolbar text */
    --clr-text-muted: #7a7d94;
    --clr-accent: #a29bfe;
    /* same as toolbar highlight */
    --clr-border: rgba(255, 255, 255, 0.08);
    --clr-action-btn-bg: rgba(255, 255, 255, 0.05);
    --clr-action-btn-hover-bg: rgba(255, 255, 255, 0.12);
    --clr-close-btn-hover-bg: rgba(255, 255, 255, 0.1);
    --clr-close-btn-color: #5a5d72;
    --clr-pie-empty: #3d4058;

    /* Top Toolbar Buttons (Dark) */
    --clr-top-btn-bg: rgba(45, 45, 58, 0.75);
    --clr-top-btn-hover: rgba(45, 45, 58, 0.95);
    --clr-top-btn-border: rgba(255, 255, 255, 0.1);
    --clr-top-btn-text: #c5c7d4;

    /* Card Backgrounds */
    --clr-card-bg: rgba(255, 255, 255, 0.05);

    /* Background Dimming */
    --bg-filter: brightness(0.7);
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--ff);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth theme transitions for all themed elements */
.toolbar-inner,
.toolbar-btn,
.toolbar-collapse,
.top-btn,
.widget,
.widget-drag-handle,
.poll-action-btn,
.widget-close-btn {
    transition:
        background var(--theme-transition),
        color var(--theme-transition),
        border-color var(--theme-transition),
        box-shadow var(--theme-transition);
}

/* ===== SCREEN CANVAS ===== */
.screen-canvas {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.screen-bg {
    position: absolute;
    inset: 0;
    background: url('bg.png') center center / cover no-repeat;
    z-index: 0;
    filter: var(--bg-filter);
    transition: opacity 0.35s ease, filter var(--theme-transition);
}

/* ===== TOP BAR ===== */
.top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 10px;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s ease;
}

.top-bar>* {
    pointer-events: auto;
}

.top-bar-right {
    display: flex;
    gap: 6px;
}

.bottom-left-bar {
    position: absolute;
    bottom: 16px;
    left: 16px;
    z-index: 1000;
    display: flex;
    gap: 6px;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s ease;
}

/* UI Hidden State */
.ui-collapsed .top-bar {
    transform: translateY(-40px);
    opacity: 0;
    pointer-events: none;
}

.ui-collapsed .bottom-left-bar {
    transform: translateY(40px);
    opacity: 0;
    pointer-events: none;
}

.top-btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-top-btn-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--clr-top-btn-border);
    border-radius: 50%;
    color: var(--clr-top-btn-text);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.top-btn:hover {
    background: var(--clr-top-btn-hover);
    transform: scale(1.05);
}

/* ===== WIDGET CONTAINER ===== */
.widget-container {
    position: absolute;
    inset: 0;
    z-index: 10;
    pointer-events: none;
}

.widget-container>* {
    pointer-events: auto;
}

/* ===== BOTTOM TOOLBAR ===== */
.bottom-toolbar {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    padding: 10px;
}

.ui-collapsed .bottom-toolbar .toolbar-inner {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
}

.ui-collapsed .bottom-toolbar .toolbar-collapse {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    box-shadow: 0 4px 16px var(--clr-toolbar-shadow);
}

.ui-collapsed .bottom-toolbar .toolbar-collapse svg {
    transform: rotate(180deg);
}

.toolbar-inner {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    background: var(--clr-toolbar-bg);
    border-radius: var(--radius);
    box-shadow: 0 -4px 24px var(--clr-toolbar-shadow);
    transition:
        background var(--theme-transition),
        box-shadow var(--theme-transition),
        opacity 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.toolbar-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 8px 0;
    width: 85px;
    /* Fixed width for equal button length */
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--clr-toolbar-text);
    font-family: var(--ff);
    font-size: 0.65rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    white-space: nowrap;
}

.toolbar-btn:hover {
    background: var(--clr-toolbar-hover);
    color: var(--clr-toolbar-text);
    filter: brightness(0.85);
}

[data-theme="dark"] .toolbar-btn:hover,
:root:not([data-theme]) .toolbar-btn:hover {
    color: #fff;
    filter: none;
}

.toolbar-btn--highlight {
    color: var(--clr-toolbar-highlight);
}

.toolbar-btn--highlight:hover {
    background: rgba(108, 92, 231, 0.15);
}

.toolbar-collapse {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 22px;
    background: var(--clr-toolbar-collapse-bg);
    border: none;
    border-radius: 0 0 10px 10px;
    color: var(--clr-toolbar-text);
    cursor: pointer;
    margin-top: -1px;
    position: relative;
    z-index: 1;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.toolbar-collapse:hover {
    background: var(--clr-toolbar-collapse-hover);
}

.toolbar-collapse svg {
    transition: transform 0.3s ease;
}

/* ===== GENERIC WIDGET ===== */
.widget {
    position: absolute;
    background: var(--clr-widget-bg);
    border-radius: var(--radius);
    box-shadow: 0 8px 32px var(--clr-widget-shadow),
        0 0 0 1px var(--clr-widget-border);
    user-select: none;
}

.widget.dragging {
    box-shadow: 0 20px 56px var(--clr-widget-shadow),
        0 0 0 2px var(--clr-accent);
    z-index: 999 !important;
}

/* Drag handle */
.widget-drag-handle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    cursor: grab;
    background: var(--clr-widget-drag-bg);
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom: 1px solid var(--clr-border);
}

.widget-drag-handle:active {
    cursor: grabbing;
}

.widget-title-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-text);
    letter-spacing: -0.01em;
}

.widget-close-btn {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--clr-close-btn-color);
    cursor: pointer;
}

.widget-close-btn:hover {
    background: var(--clr-close-btn-hover-bg);
    color: #e74c3c;
}

/* ===== POLL WIDGET ===== */
.poll-widget {
    width: 420px;
    min-height: 200px;
    animation: widgetSpawn 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes widgetSpawn {
    from {
        opacity: 0;
        transform: scale(0.85) translateY(20px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Poll Body */
.poll-body {
    position: relative;
    display: flex;
    align-items: center;
    padding: 20px;
}

/* Pie chart area */
.poll-chart-area {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.poll-chart-wrap {
    position: relative;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 1.5px solid var(--clr-border);
    overflow: hidden;
}

.poll-chart-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Side actions */
.poll-actions {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.poll-action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-action-btn-bg);
    border: 1.5px solid var(--clr-border);
    border-radius: 50%;
    color: var(--clr-text-muted);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.poll-action-btn:hover {
    background: var(--clr-action-btn-hover-bg);
    transform: translateY(-1px);
}

.poll-action-btn:active {
    transform: scale(0.92);
}

.poll-action-btn.active {
    background: var(--clr-accent);
    border-color: var(--clr-accent);
    color: #fff;
    transform: scale(1.05);
}

/* Emoji vote row */
.poll-emoji-row {
    display: flex;
    justify-content: center;
    gap: 14px;
    padding: 0px 18px 20px;
}

.poll-emoji-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-action-btn-bg);
    border: 1.5px solid var(--clr-border);
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    outline: none;
    color: var(--clr-text);
}

.poll-emoji-btn:hover {
    background: var(--clr-action-btn-hover-bg);
    transform: translateY(-2px);
}

.poll-emoji-btn:active {
    transform: scale(0.9);
}

.poll-emoji-btn.locked {
    pointer-events: none;
    opacity: 0.4;
    filter: grayscale(1);
}

/* Vote smooth pop animation */
@keyframes emojiNeutralPop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.15);
        background: var(--clr-border);
    }

    100% {
        transform: scale(1);
    }
}

.poll-emoji-btn.just-voted {
    animation: emojiNeutralPop 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    border-color: var(--clr-text-muted);
}

/* Results hidden (blur) */
.poll-widget.results-hidden .poll-chart-area {
    filter: blur(14px);
    pointer-events: none;
}

.poll-widget.results-hidden .pie-label {
    opacity: 0;
}

/* Locked badge */
.poll-widget.poll-locked .widget-title-text::after {
    content: ' 🔒';
    font-size: 0.75rem;
}

/* ===== RESPONSIVE ===== */

/* Tablets and smaller */
@media (max-width: 768px) {
    .toolbar-btn span {
        display: none;
    }

    .toolbar-btn {
        padding: 10px;
    }

    .toolbar-inner {
        gap: 0;
        padding: 8px 10px;
    }

    .poll-widget {
        width: 360px;
    }

    .poll-chart-wrap {
        width: 125px;
        height: 125px;
    }

    .emoji-circle {
        width: 36px;
        height: 36px;
        font-size: 1.15rem;
    }
}

/* Phones */
@media (max-width: 480px) {
    .poll-widget {
        width: calc(100vw - 24px);
        max-width: 360px;
    }

    .poll-body {
        flex-direction: column;
        padding: 8px 12px;
    }

    .poll-chart-wrap {
        width: 120px;
        height: 120px;
    }

    .poll-actions {
        flex-direction: row;
        padding: 0;
        gap: 8px;
    }

    .poll-emoji-row {
        gap: 8px;
        padding: 8px 12px 14px;
    }

    .emoji-circle {
        width: 34px;
        height: 34px;
        font-size: 1rem;
    }

    .widget-title-text {
        font-size: 0.78rem;
    }

    .top-btn {
        width: 32px;
        height: 32px;
    }
}

/* Large screens */
@media (min-width: 1200px) {
    .poll-widget {
        width: 480px;
    }

    .poll-chart-wrap {
        width: 170px;
        height: 170px;
    }

    .emoji-circle {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }
}

/* ===== BACKGROUND SIDEBAR ===== */
.bg-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100vh;
    background: var(--clr-widget-bg);
    box-shadow: 4px 0 24px var(--clr-widget-shadow), 1px 0 0 var(--clr-widget-border);
    z-index: 2000;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    display: flex;
    flex-direction: column;
}

.bg-sidebar.open {
    transform: translateX(0);
}

.bg-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--clr-border);
}

.bg-views-wrapper {
    position: relative;
    flex: 1;
    display: flex;
    overflow: hidden;
}

.bg-sidebar-view {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease;
}

.bg-sidebar-view.active-view {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

.bg-sidebar-view.left-view {
    transform: translateX(-30px);
    opacity: 0;
    pointer-events: none;
}

.bg-sidebar-view.right-view {
    transform: translateX(30px);
    opacity: 0;
    pointer-events: none;
}

.bg-sidebar-body {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-content: start;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-text);
}

/* Custom URL View */
.bg-url-container {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.bg-view-desc {
    font-size: 0.85rem;
    color: var(--clr-text);
    opacity: 0.8;
}

.bg-custom-input {
    width: 100%;
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--clr-border);
    background: var(--clr-widget-bg);
    color: var(--clr-text);
    font-family: var(--ff);
    font-size: 0.85rem;
    outline: none;
}

.bg-custom-input:focus {
    border-color: var(--clr-accent);
}

/* Color Swatches View */
.color-swatches {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.swatch {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
    transition: transform 0.2s, border-color 0.2s;
}

.swatch:hover {
    transform: scale(1.1);
}

.swatch.active {
    border-color: var(--clr-text);
}

.iro-container {
    display: flex;
    justify-content: center;
    padding: 12px 0;
}

.bg-option {
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform 0.2s ease;
}

.bg-option:hover {
    transform: translateY(-2px);
}

.bg-option:active {
    transform: scale(0.95);
}

.bg-preview {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius);
    background-color: var(--clr-action-btn-bg);
    background-size: cover;
    background-position: center;
    border: 1.5px solid var(--clr-border);
    transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
    color: var(--clr-text-muted);
}

.bg-option.active .bg-preview {
    border-color: var(--clr-accent);
    border-width: 2px;
}

.bg-option span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--clr-text);
    text-align: center;
}

/* ===== CUSTOM DIALOG ===== */
.custom-dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
}

.custom-dialog {
    background: var(--clr-widget-bg);
    width: 90%;
    max-width: 400px;
    border-radius: var(--radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: slideUp 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    border: 1px solid var(--clr-widget-border);
}

.dialog-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dialog-header h3 {
    font-size: 1.1rem;
    color: var(--clr-text);
    font-weight: 600;
}

.dialog-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--clr-text-muted);
    cursor: pointer;
    line-height: 1;
}

.dialog-body {
    padding: 24px 20px;
}

.dialog-body p {
    color: var(--clr-text);
    font-size: 0.95rem;
    line-height: 1.5;
}

.dialog-footer {
    padding: 16px 20px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: var(--clr-widget-drag-bg);
}

.dialog-btn {
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-family: var(--ff);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.dialog-btn.primary {
    background: var(--clr-accent);
    color: #fff;
}

.dialog-btn.primary:hover {
    filter: brightness(1.1);
}

.dialog-btn.secondary {
    background: transparent;
    color: var(--clr-text);
    border: 1.5px solid var(--clr-border);
}

.dialog-btn.secondary:hover {
    background: rgba(0, 0, 0, 0.05);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}