/* ─── Quiz Battle App Styles — Replicate-Inspired Design System ─── */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── Variables ─── */
:root {
    --color-dark: #202020;
    --color-red: #ea2804;
    --color-red-warm: #dd4425;
    --color-green: #2b9a66;
    --color-white: #ffffff;
    --color-near-white: #fcfcfc;
    --color-gray: #646464;
    --color-gray-warm: #4e4e4e;
    --color-silver: #8d8d8d;
    --color-silver-light: #bbbbbb;
    --color-code-bg: #24292e;

    --font-display: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
    --font-code: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    --radius-pill: 9999px;
    --spacing-base: 8px;
}

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-dark);
    background: var(--color-white);
}

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.0;
    color: var(--color-dark);
}

h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 24px; }

p {
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-gray);
}

/* ─── Layout ─── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Hero Gradient ─── */
.hero-gradient {
    background: linear-gradient(135deg, #ea2804 0%, #ff6b35 25%, #e8115c 50%, #ff4da6 75%, #ff9e9e 100%);
    padding: 64px 24px;
    text-align: center;
    color: white;
}

.hero-gradient h1 {
    color: white;
    font-size: 72px;
    font-weight: 700;
    letter-spacing: -1.8px;
    margin-bottom: 16px;
}

.hero-gradient p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 20px;
    font-weight: 400;
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 32px;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

/* Dark Solid */
.btn-primary {
    background: var(--color-dark);
    color: var(--color-near-white);
    border: 4px solid var(--color-dark);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-gray-warm);
    border-color: var(--color-gray-warm);
}

/* White Outlined */
.btn-outline {
    background: var(--color-white);
    color: var(--color-dark);
    border: 1px solid var(--color-dark);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-dark);
    color: var(--color-white);
}

/* Success / Green */
.btn-success {
    background: var(--color-green);
    color: var(--color-white);
    border: 1px solid var(--color-green);
}

.btn-success:hover:not(:disabled) {
    background: #248a58;
    border-color: #248a58;
}

/* Danger / Red */
.btn-danger {
    background: var(--color-red);
    color: var(--color-white);
    border: 1px solid var(--color-red);
}

.btn-danger:hover:not(:disabled) {
    background: var(--color-red-warm);
    border-color: var(--color-red-warm);
}

/* Small */
.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 48px;
    font-size: 20px;
}

/* ─── Cards ─── */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-dark);
    border-radius: var(--radius-pill);
    padding: 24px;
    margin-bottom: 24px;
}

.card h2, .card h3 {
    margin-bottom: 16px;
}

/* ─── Category Cards ─── */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.category-card {
    padding: 24px;
    border: 2px solid var(--color-silver-light);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    background: var(--color-white);
}

.category-card:hover {
    border-color: var(--color-red);
    background: #fff5f5;
}

.category-card.selected {
    border-color: var(--color-red);
    background: #ffe8e8;
    border-width: 3px;
}

.category-card .category-name {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.category-card .category-count {
    font-size: 14px;
    color: var(--color-gray);
}

/* ─── Question Display ─── */
.question-display {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    padding: 48px 32px;
    background: linear-gradient(135deg, #ea2804 0%, #ff6b35 25%, #e8115c 50%, #ff4da6 75%, #ff9e9e 100%);
    border-radius: var(--radius-pill);
    margin: 24px 0;
    color: white;
    line-height: 1.2;
}

.question-display .question-text {
    font-size: 36px;
}

.question-display .options {
    margin-top: 24px;
    font-size: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.question-display .option-pill {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 24px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ─── Answer Reveal ─── */
.answer-reveal {
    background: var(--color-green);
    color: white;
    padding: 24px 32px;
    border-radius: var(--radius-pill);
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    margin: 24px 0;
}

/* ─── Score Display ─── */
.score-display {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: white;
    text-align: center;
    padding: 24px 32px;
    background: var(--color-dark);
    border-radius: var(--radius-pill);
    margin: 16px 0;
}

.score-display .team-name {
    font-size: 36px;
}

.score-display .score-value {
    font-size: 64px;
}

/* ─── Result Screen ─── */
.result-screen {
    text-align: center;
    padding: 64px 32px;
}

.result-screen .result-score {
    font-family: var(--font-display);
    font-size: 96px;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, #ea2804 0%, #ff6b35 25%, #e8115c 50%, #ff4da6 75%, #ff9e9e 100%);
    padding: 48px 64px;
    border-radius: var(--radius-pill);
    display: inline-block;
    margin: 24px 0;
}

.result-screen .result-label {
    font-size: 24px;
    color: var(--color-gray);
    margin-bottom: 16px;
}

/* ─── Status Badges ─── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-pill);
    background: var(--color-green);
    color: white;
}

.badge-warning {
    background: #f59e0b;
}

.badge-danger {
    background: var(--color-red);
}

/* ─── Links ─── */
a {
    color: var(--color-dark);
    text-decoration: underline dotted var(--color-silver-light);
    transition: color 0.2s;
}

a:hover {
    color: var(--color-red);
    text-decoration-color: var(--color-red);
}

/* ─── Forms ─── */
input, textarea, select {
    width: 100%;
    padding: 12px 20px;
    font-family: var(--font-body);
    font-size: 16px;
    border: 1px solid var(--color-silver-light);
    border-radius: var(--radius-pill);
    background: var(--color-white);
    color: var(--color-dark);
    margin-bottom: 16px;
    transition: border-color 0.2s;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-red);
}

/* ─── Grid ─── */
.grid {
    display: grid;
    gap: 24px;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* ─── Flash Messages ─── */
.flash {
    padding: 16px 24px;
    border-radius: var(--radius-pill);
    margin: 16px 0;
    font-weight: 600;
}

.flash-success {
    background: var(--color-green);
    color: white;
}

.flash-error {
    background: var(--color-red);
    color: white;
}

.flash-info {
    background: var(--color-dark);
    color: white;
}

/* ─── View Switcher ─── */
.view-switcher {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.view-switcher .btn {
    flex: 1;
    min-width: 150px;
    text-align: center;
}

/* ─── Quiz List ─── */
.quiz-list-item {
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-silver-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quiz-list-item:last-child {
    border-bottom: none;
}

/* ─── Question List ─── */
.question-list-item {
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-silver-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ─── Navigation ─── */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-silver-light);
    background: var(--color-white);
}

.nav-brand {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .hero-gradient h1 {
        font-size: 48px;
    }

    .hero-gradient p {
        font-size: 18px;
    }

    .question-display {
        font-size: 24px;
        padding: 32px 20px;
    }

    .question-display .question-text {
        font-size: 24px;
    }

    .question-display .options {
        font-size: 18px;
    }

    .score-display {
        font-size: 36px;
    }

    .score-display .score-value {
        font-size: 48px;
    }

    .result-screen .result-score {
        font-size: 64px;
        padding: 32px 40px;
    }

    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .view-switcher {
        flex-direction: column;
    }
}

/* ─── Animations ─── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* ─── Code ─── */
code {
    font-family: var(--font-code);
    font-size: 14px;
    background: var(--color-code-bg);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
}