/* Analytics Dashboard - Typewriter Aesthetic */

/* ========== CSS CUSTOM PROPERTIES ========== */

:root {
    --color-bg: #fefefe;
    --color-bg-alt: #f9f9f9;
    --color-bg-hover: #f5f5f5;
    --color-text: #333;
    --color-text-muted: #666;
    --color-text-subtle: #999;
    --color-border: #ddd;
    --color-border-strong: #333;
    --color-accent: #333;
    --color-accent-hover: #000;
    --color-error: #c00;
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-danger: #c0392b;
    --color-insights-bg: #fffacd;
    --color-insights-border: #f0e68c;
    --color-bar-bg: #e0e0e0;
    --color-bar-fill: #333;
    --color-funnel-start: #333;
    --color-funnel-end: #666;
}

[data-theme="dark"] {
    --color-bg: #1a1a1a;
    --color-bg-alt: #242424;
    --color-bg-hover: #2a2a2a;
    --color-text: #e0e0e0;
    --color-text-muted: #999;
    --color-text-subtle: #777;
    --color-border: #444;
    --color-border-strong: #e0e0e0;
    --color-accent: #e0e0e0;
    --color-accent-hover: #fff;
    --color-error: #ff6b6b;
    --color-insights-bg: #3d3520;
    --color-insights-border: #5c4d30;
    --color-bar-bg: #333;
    --color-bar-fill: #e0e0e0;
    --color-funnel-start: #e0e0e0;
    --color-funnel-end: #999;
}

/* ========== BASE STYLES ========== */

* {
    box-sizing: border-box;
}

body {
    font-family: 'Courier New', Courier, monospace;
    background: var(--color-bg);
    color: var(--color-text);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

/* ========== UTILITIES ========== */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

[hidden] {
    display: none !important;
}

/* ========== NOSCRIPT WARNING ========== */

.noscript-warning {
    background: var(--color-warning);
    color: #000;
    padding: 15px;
    text-align: center;
    font-size: 14px;
}

/* ========== ERROR BANNER ========== */

.error-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-danger);
    color: #fff;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    font-size: 12px;
}

.error-banner[hidden] {
    display: none;
}

.error-dismiss {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    padding: 0 5px;
    line-height: 1;
}

.error-dismiss:hover {
    opacity: 0.8;
}

/* ========== AUTH SCREEN ========== */

.auth-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-box {
    background: var(--color-bg-alt);
    border: 2px solid var(--color-border-strong);
    padding: 40px;
    max-width: 320px;
    width: 100%;
    text-align: center;
}

.auth-box h1 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0 0 30px 0;
}

.auth-box input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border-strong);
    background: transparent;
    font-family: inherit;
    font-size: 14px;
    text-align: center;
    margin-bottom: 15px;
    color: var(--color-text);
}

.auth-box input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.auth-box button {
    width: 100%;
    padding: 12px;
    background: var(--color-accent);
    color: var(--color-bg);
    border: none;
    font-family: inherit;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.auth-box button:hover {
    opacity: 0.8;
}

.auth-box button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.auth-error {
    color: var(--color-error);
    font-size: 12px;
    margin-top: 10px;
}

/* ========== DASHBOARD LAYOUT ========== */

.dashboard {
    display: none;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard.active {
    display: block;
}

/* Header */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--color-border-strong);
    flex-wrap: wrap;
    gap: 15px;
}

.dashboard-title {
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin: 0;
}

.dashboard-nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.dashboard-nav a,
.dashboard-nav button {
    padding: 8px 16px;
    font-family: inherit;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    color: var(--color-text);
    background: transparent;
    border: 1px solid var(--color-border-strong);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.dashboard-nav a:hover,
.dashboard-nav button:hover {
    background: var(--color-accent);
    color: var(--color-bg);
}

.dashboard-nav a:focus-visible,
.dashboard-nav button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Time range selector */
.time-range {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
    align-items: center;
}

.time-range button {
    padding: 6px 12px;
    font-size: 10px;
    background: transparent;
    border: 1px solid var(--color-text-subtle);
    color: var(--color-text-muted);
    cursor: pointer;
    font-family: inherit;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.time-range button:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
}

.time-range button.active {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.time-range button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.last-refresh {
    margin-left: auto;
    font-size: 10px;
    color: var(--color-text-subtle);
}

/* ========== TWO COLUMN GRID ========== */

.two-column-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 900px) {
    .two-column-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== METRICS GRID ========== */

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
    margin-top: 20px;
}

.metric-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    padding: 20px;
    text-align: center;
}

.metric-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.metric-value {
    font-size: 28px;
    font-weight: bold;
    line-height: 1;
}

.metric-change {
    font-size: 11px;
    margin-top: 8px;
}

.metric-change.positive {
    color: var(--color-success);
}

.metric-change.negative {
    color: var(--color-danger);
}

/* ========== SECTIONS ========== */

.section {
    margin-bottom: 40px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border);
}

.section-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
}

.section-controls {
    display: flex;
    gap: 10px;
}

.section-controls select,
.section-controls button {
    padding: 5px 10px;
    font-family: inherit;
    font-size: 10px;
    border: 1px solid var(--color-text-subtle);
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
}

/* ========== HEATMAP & CHART CONTAINERS ========== */

.heatmap-container,
.chart-container {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    padding: 20px;
}

.chart-container {
    min-height: 300px;
}

.heatmap-row {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    font-size: 12px;
}

.heatmap-label {
    width: 100px;
    flex-shrink: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.heatmap-bar-container {
    flex: 1;
    height: 24px;
    background: var(--color-bar-bg);
    position: relative;
    margin: 0 10px;
}

.heatmap-bar {
    height: 100%;
    background: var(--color-bar-fill);
    transition: width 0.3s ease;
}

.heatmap-bar.high {
    background: var(--color-success);
}

.heatmap-bar.medium {
    background: var(--color-warning);
}

.heatmap-bar.low {
    background: var(--color-danger);
}

.heatmap-value {
    width: 50px;
    text-align: right;
    flex-shrink: 0;
}

.chart-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 250px;
    color: var(--color-text-subtle);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========== DATA TABLE ========== */

.data-table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: var(--color-bg-alt);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s ease;
}

.data-table th:hover {
    background: var(--color-bg-hover);
}

.data-table th.sorted-asc::after {
    content: ' ▲';
}

.data-table th.sorted-desc::after {
    content: ' ▼';
}

.data-table tr:hover td {
    background: var(--color-bg-alt);
}

.col-type {
    width: 50px;
}

.col-clicks {
    width: 100px;
}

.col-chapters {
    width: 150px;
}

.emoji-type {
    font-size: 16px;
}

/* ========== DROP-OFF FUNNEL ========== */

.funnel-container {
    padding: 20px;
}

.funnel-step {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.funnel-label {
    width: 120px;
    font-size: 11px;
}

.funnel-bar-container {
    flex: 1;
    position: relative;
}

.funnel-bar {
    height: 30px;
    background: linear-gradient(90deg, var(--color-funnel-start) 0%, var(--color-funnel-end) 100%);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    color: var(--color-bg);
    font-size: 11px;
    font-weight: bold;
    transition: width 0.3s ease;
}

.funnel-drop {
    font-size: 10px;
    color: var(--color-danger);
    margin-left: 10px;
    white-space: nowrap;
}

/* ========== INSIGHTS PANEL ========== */

.insights-panel {
    background: var(--color-insights-bg);
    border: 1px solid var(--color-insights-border);
    padding: 20px;
    min-height: 60px;
}

.insights-empty {
    color: var(--color-text-muted);
    font-size: 12px;
    font-style: italic;
}

.insight-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 12px;
    font-size: 12px;
    line-height: 1.5;
}

.insight-item:last-child {
    margin-bottom: 0;
}

.insight-icon {
    margin-right: 10px;
    font-size: 14px;
}

/* ========== REAL-TIME INDICATOR ========== */

.realtime-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
}

.realtime-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.realtime-count {
    font-weight: bold;
}

/* ========== LOADING STATE ========== */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--color-text-subtle);
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 10px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== EXPORT BUTTONS ========== */

.export-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 15px;
}

.export-btn {
    padding: 8px 16px;
    font-family: inherit;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: transparent;
    border: 1px solid var(--color-text-subtle);
    color: var(--color-text);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.export-btn:hover:not(:disabled) {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.export-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.export-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.export-hint {
    font-size: 10px;
    color: var(--color-text-subtle);
    font-style: italic;
}

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

@media (max-width: 768px) {
    .dashboard {
        padding: 15px;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .metric-value {
        font-size: 22px;
    }

    .heatmap-label {
        width: 70px;
        font-size: 10px;
    }

    .data-table {
        font-size: 11px;
    }

    .data-table th,
    .data-table td {
        padding: 8px;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .time-range {
        flex-wrap: wrap;
    }

    .funnel-label {
        width: 80px;
        font-size: 10px;
    }
}

/* ========== PRINT STYLES ========== */

@media print {
    .auth-screen,
    .dashboard-nav,
    .time-range,
    .export-buttons,
    .error-banner {
        display: none !important;
    }

    .dashboard {
        display: block !important;
        padding: 0;
        max-width: none;
    }

    .section {
        page-break-inside: avoid;
    }

    .heatmap-container,
    .chart-container,
    .metric-card,
    .insights-panel {
        border: 1px solid #000;
        background: #fff !important;
    }

    body {
        background: #fff;
        color: #000;
    }
}