/* ========================================================
   AL SYED — CASES Style Theme & Design System (Sidebar Layout)
   ======================================================== */

:root {
    --bg-black: #000000;
    --bg-dark: #080808;
    --bg-card: #0c0c0c;
    --accent-red: #ff3b00;
    --accent-red-hover: #cc2f00;
    --accent-green: #00ff66;
    --accent-yellow: #ffd000;
    --border-dark: #1c1c1e;
    --border-medium: #222222;
    --text-white: #ffffff;
    --text-gray: #a1a1aa;
    --text-muted: #71717a;
    --text-dark-gray: #52525b;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* Base resets */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-black);
    color: var(--text-gray);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-black);
}
::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* App Container Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 300px;
    background-color: var(--bg-black);
    border-right: 1px solid var(--border-dark);
    padding: 48px 24px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.brand {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: 16px;
    letter-spacing: 1px;
    user-select: none;
    margin-bottom: 48px;
    padding-left: 12px;
}

.brand-al {
    color: var(--accent-red);
}

.brand-syed {
    color: var(--text-white);
}

.brand-sep, .brand-cases {
    color: var(--text-muted);
}

.lang-switcher {
    border: 1px solid var(--border-medium);
    color: var(--text-muted);
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.lang-switcher:hover {
    color: var(--text-white);
    border-color: var(--text-muted);
}

.main-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 14px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-align: left;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    background-color: var(--bg-card);
    color: var(--text-white);
}

.nav-btn.active {
    background-color: var(--bg-card);
    color: var(--text-white);
    box-shadow: inset 3px 0 0 var(--accent-red);
}

.nav-btn .icon {
    font-size: 14px;
}

.nav-btn .badge {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 10px;
    background-color: var(--bg-black);
    border: 1px solid var(--border-medium);
    color: var(--text-muted);
    padding: 1px 6px;
    border-radius: 2px;
}

.nav-btn.active .badge {
    color: var(--accent-red);
    border-color: rgba(255, 0, 51, 0.3);
}

/* Sidebar Progress Section */
.progress-section {
    border-top: 1px solid var(--border-dark);
    padding-top: 32px;
}

.progress-section h3 {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding-left: 4px;
}

.progress-bar-container {
    height: 4px;
    background-color: var(--bg-card);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 16px;
}

.progress-bar {
    height: 100%;
    background-color: var(--accent-red);
    transition: width 0.5s ease;
}

.progress-metrics {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-left: 4px;
}

.metric-item {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}

.metric-item .label {
    font-weight: 600;
}

.metric-item .val-wrapper {
    color: var(--text-white);
}

.metric-item .val {
    font-weight: 700;
}

.metric-item .slash, .metric-item .total, .metric-item .pts {
    color: var(--text-muted);
}

/* Main Content Area */
.content-area {
    flex: 1;
    background-color: var(--bg-black);
    padding: 60px 80px;
    overflow-y: auto;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Hero elements */
.hero-left {
    max-width: 720px;
}

.hero-subheading {
    color: var(--accent-red);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-heading {
    font-size: 76px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    color: var(--text-white);
    margin-bottom: 32px;
}

.hero-heading .text-demand {
    color: var(--text-dark-gray);
}

/* Detailed description container */
.desc-card {
    margin-top: 40px;
}

.desc-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.desc-card p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--text-gray);
    margin-bottom: 20px;
}

.rules-box, .guidelines-box {
    border: 1px solid var(--border-dark);
    background-color: var(--bg-card);
    padding: 24px;
    border-radius: 4px;
    margin-top: 24px;
}

.rules-box h4, .guidelines-box h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.rules-box ul {
    list-style-type: none;
    padding-left: 0;
}

.rules-box li {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-gray);
    margin-bottom: 8px;
    position: relative;
    padding-left: 16px;
}

.rules-box li::before {
    content: "▪";
    color: var(--accent-red);
    position: absolute;
    left: 0;
    top: 0;
}

.rules-box li:last-child {
    margin-bottom: 0;
}

.guidelines-box p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-gray);
    margin-bottom: 0;
}

/* Lab View Page */
.lab-container {
    max-width: 960px;
}

.lab-main-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 1px solid var(--border-dark);
    padding-bottom: 32px;
    margin-bottom: 48px;
}

.lab-info {
    flex: 1;
    max-width: 600px;
}

.lab-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-white);
    margin-top: 8px;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.lab-description {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

.lab-stats {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}

.stat-box {
    border: 1px solid var(--border-medium);
    padding: 12px 24px;
    border-radius: 2px;
    min-width: 120px;
    text-align: center;
    background-color: var(--bg-dark);
}

.stat-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.stat-value {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-white);
    margin-top: 4px;
}

/* Question Cards container */
.questions-container {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.question-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-dark);
    padding: 32px;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.question-card.solved {
    border-color: rgba(0, 255, 102, 0.3);
    box-shadow: 0 0 16px rgba(0, 255, 102, 0.03);
}

.q-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.q-header h4 {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-white);
    text-transform: uppercase;
}

.q-badge {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border: 1px solid var(--border-medium);
    padding: 3px 8px;
    border-radius: 2px;
    text-transform: uppercase;
}

.score-badge {
    font-size: 9px;
    font-weight: 700;
    color: var(--accent-red);
    border: 1px solid rgba(255, 0, 51, 0.2);
    background-color: rgba(255, 0, 51, 0.03);
}

.question-text {
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-gray);
    margin-bottom: 24px;
}

.answer-row {
    display: flex;
    gap: 12px;
}

.answer-input {
    flex: 1;
    background-color: var(--bg-black);
    border: 1px solid var(--border-medium);
    color: var(--text-white);
    font-family: var(--font-sans);
    font-size: 14px;
    padding: 12px 16px;
    border-radius: 2px;
    outline: none;
    transition: border-color 0.2s ease;
}

.answer-input:focus {
    border-color: var(--accent-red);
}

.answer-input:disabled {
    background-color: #030303;
    border-color: var(--border-dark);
    color: var(--text-muted);
    cursor: not-allowed;
}

.btn {
    padding: 12px 28px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 2px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--accent-red);
    color: var(--text-white);
}

.btn-primary:hover {
    background-color: var(--accent-red-hover);
}

.btn-success {
    background-color: rgba(0, 255, 102, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(0, 255, 102, 0.2);
    cursor: not-allowed;
}

.feedback-text {
    font-family: var(--font-mono);
    font-size: 12px;
    margin-top: 14px;
}

.feedback-text.success {
    color: var(--accent-green);
}

.feedback-text.error {
    color: var(--accent-red);
}

/* Hints Styling */
.hint-container {
    margin-top: 20px;
}

.btn-hint-reveal {
    background: none;
    border: 1px dashed var(--accent-yellow);
    color: var(--accent-yellow);
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-hint-reveal:hover {
    background-color: rgba(255, 208, 0, 0.05);
}

.hint-content {
    background-color: rgba(255, 208, 0, 0.02);
    border: 1px solid rgba(255, 208, 0, 0.15);
    padding: 14px;
    border-radius: 2px;
    margin-top: 10px;
}

.hint-content p {
    font-size: 12px;
    color: var(--accent-yellow);
    margin: 0;
}

/* Responsiveness */
@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-dark);
        padding: 32px 20px;
    }
    .content-area {
        padding: 40px 20px;
    }
    .hero-heading {
        font-size: 48px;
    }
    .lab-main-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }
    .lab-stats {
        width: 100%;
    }
    .stat-box {
        flex: 1;
    }
}

/* Urdu RTL Support */
body.ur-mode {
    direction: rtl;
    text-align: right;
}

body.ur-mode .sidebar {
    border-right: none;
    border-left: 1px solid var(--border-dark);
}

body.ur-mode .nav-btn {
    text-align: right;
}

body.ur-mode .nav-btn.active {
    box-shadow: inset -3px 0 0 var(--accent-red);
}

body.ur-mode .nav-btn .badge {
    margin-right: auto;
    margin-left: 0;
}

body.ur-mode .metric-item {
    flex-direction: row-reverse;
}

body.ur-mode .rules-box li {
    padding-left: 0;
    padding-right: 16px;
}

body.ur-mode .rules-box li::before {
    left: auto;
    right: 0;
}

body.ur-mode .brand {
    padding-left: 0;
    padding-right: 12px;
}

body.ur-mode .lang-switcher {
    margin-left: 0 !important;
    margin-right: auto !important;
}