/**
 * Quiz Game Kit - Core Styles
 *
 * This file contains all the styling for the quiz game.
 * Theme colors are defined as CSS custom properties (variables) in :root
 * and can be easily overridden in a separate theme.css file.
 *
 * To customize the theme for your quiz:
 * 1. Create a theme.css file
 * 2. Override the CSS variables with your colors
 * 3. Include theme.css after styles.css in your HTML
 *
 * Example theme.css:
 *   :root {
 *     --gold: #your-color;
 *     --navy: #your-background;
 *   }
 */

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

/* Theme Variables - Override these in theme.css for custom styling */
:root {
    /* Primary accent colors */
    --gold: #d4af37;
    --gold-light: #f4e4a6;
    --gold-dark: #996515;

    /* Background and text colors */
    --marble: #f5f5f0;
    --navy: #1a1a2e;
    --purple: #4a1a6b;

    /* Special effects */
    --lightning: #00d4ff;

    /* Optional: Add more theme variables here */
    --font-heading: 'Cinzel', serif;
    --font-body: 'Spectral', serif;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--navy) 0%, #2d1b4e 50%, var(--navy) 100%);
    color: var(--marble);
}

/* Animated background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.star {
    position: absolute;
    width: 3px;
    height: 3px;
    background: white;
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.5); }
}

.lightning-bolt {
    position: absolute;
    width: 4px;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--lightning), transparent);
    opacity: 0;
    animation: lightning 8s infinite;
}

@keyframes lightning {
    0%, 95%, 100% { opacity: 0; }
    96%, 97% { opacity: 1; }
}

/* Main container */
.container {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 15px;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.header {
    text-align: center;
    padding: 15px 20px;
    position: relative;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.header.hidden {
    display: none;
}

.user-greeting.hidden {
    display: none;
}

.header h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(212, 175, 55, 0.5);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}

.header .subtitle {
    font-style: italic;
    color: var(--gold-light);
    margin-top: 10px;
    font-size: 1.1rem;
    opacity: 0.8;
}

/* Greek column decorations */
.columns {
    display: flex;
    justify-content: space-between;
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    height: 100%;
    pointer-events: none;
    opacity: 0.1;
}

.column {
    width: 60px;
    background: repeating-linear-gradient(
        to bottom,
        var(--marble) 0px,
        var(--marble) 20px,
        transparent 20px,
        transparent 25px
    );
}

/* Screens */
.screen {
    display: none;
    animation: fadeIn 0.5s ease-out;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

#gameScreen {
    overflow: hidden;
}

#loginScreen, #completionScreen {
    justify-content: center;
}

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

/* Login form */
.login-card {
    background: linear-gradient(145deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    border: 2px solid var(--gold);
    border-radius: 20px;
    padding: 30px;
    max-width: 450px;
    margin: 0 auto;
    backdrop-filter: blur(10px);
    box-shadow:
        0 0 30px rgba(212, 175, 55, 0.2),
        inset 0 0 30px rgba(255, 255, 255, 0.05);
}

.login-card h2 {
    font-family: var(--font-heading);
    color: var(--gold);
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.8rem;
}

.input-group {
    margin-bottom: 25px;
}

.input-group label {
    display: block;
    color: var(--gold-light);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.input-group input {
    width: 100%;
    padding: 15px 20px;
    font-size: 1.1rem;
    font-family: 'Spectral', serif;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--gold-dark);
    border-radius: 10px;
    color: var(--marble);
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: var(--navy);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transform: rotate(45deg);
    animation: btnShine 3s infinite;
}

@keyframes btnShine {
    0% { left: -50%; }
    20%, 100% { left: 150%; }
}

/* Stats bar */
.stats-bar {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    margin-bottom: 15px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    flex-shrink: 0;
}

.stat {
    text-align: center;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gold-light);
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Quiz card */
.quiz-card {
    background: linear-gradient(145deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
    border: 2px solid var(--gold);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    box-shadow:
        0 0 50px rgba(212, 175, 55, 0.15),
        inset 0 0 50px rgba(255, 255, 255, 0.03);
}

.quiz-card::before {
    content: '🏛️';
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 100px;
    opacity: 0.05;
    transform: rotate(15deg);
    pointer-events: none;
}

.question-number {
    display: inline-block;
    background: var(--gold);
    color: var(--navy);
    padding: 6px 16px;
    border-radius: 20px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 12px;
    flex-shrink: 0;
}

.question-text {
    font-size: 1.2rem;
    line-height: 1.5;
    margin-bottom: 15px;
    color: var(--marble);
    flex-shrink: 0;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.option {
    padding: 14px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
}

.option:hover:not(.disabled) {
    border-color: var(--gold);
    background: rgba(212, 175, 55, 0.1);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

.option.correct {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.3) 0%, rgba(34, 197, 94, 0.1) 100%);
    border-color: #22c55e;
    animation: correctPulse 0.5s ease-out;
}

@keyframes correctPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.option.incorrect {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.3) 0%, rgba(239, 68, 68, 0.1) 100%);
    border-color: #ef4444;
    animation: shake 0.5s ease-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.option.disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

/* Result display */
.result-message {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    border-radius: 15px;
    font-size: 1.2rem;
    animation: fadeIn 0.5s ease-out;
}

.result-message.correct {
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid #22c55e;
    color: #86efac;
}

.result-message.incorrect {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid #ef4444;
    color: #fca5a5;
}

.fun-fact {
    margin-top: 15px;
    padding: 15px;
    background: rgba(212, 175, 55, 0.1);
    border-left: 4px solid var(--gold);
    font-style: italic;
    font-size: 1rem;
    color: var(--gold-light);
}

.wiki-link {
    display: inline-block;
    margin-top: 10px;
    font-size: 0.85rem;
    font-style: normal;
    color: var(--lightning);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.wiki-link:hover {
    opacity: 1;
    text-decoration: underline;
}

.wiki-link-small {
    font-size: 0.75rem;
    margin-left: 8px;
    color: var(--lightning);
    text-decoration: none;
    opacity: 0.7;
}

.wiki-link-small:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Navigation */
.nav-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--gold);
    color: var(--gold);
}

.btn-secondary:hover {
    background: var(--gold);
    color: var(--navy);
}

.btn-nav {
    padding: 10px 20px;
    font-size: 0.9rem;
    letter-spacing: 1px;
    width: auto;
}

/* Completion screen */
.completion-card {
    text-align: center;
    padding: 25px;
    background: linear-gradient(145deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    border: 3px solid var(--gold);
    border-radius: 25px;
    margin: 0 auto;
    max-width: 600px;
}

.trophy {
    font-size: 60px;
    margin-bottom: 10px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.completion-card h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--gold);
    margin-bottom: 10px;
}

.final-score {
    font-size: 3rem;
    font-family: var(--font-heading);
    font-weight: 900;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 15px 0;
}

.rank {
    font-size: 1.2rem;
    color: var(--gold-light);
    margin-bottom: 15px;
}

/* User greeting */
.user-greeting {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    margin-bottom: 10px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    flex-shrink: 0;
}

.user-greeting span {
    color: var(--gold-light);
}

.user-greeting strong {
    color: var(--gold);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.85rem;
}

/* Progress bar */
.progress-container {
    width: 100%;
    height: 6px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
    flex-shrink: 0;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-light));
    border-radius: 10px;
    transition: width 0.5s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: progressShine 2s infinite;
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Medium screens - compact layout */
@media (max-height: 800px) {
    .header {
        padding: 10px 15px;
    }

    .header h1 {
        font-size: clamp(1.5rem, 4vw, 2.5rem);
    }

    .header .subtitle {
        display: none;
    }

    .stats-bar {
        padding: 10px;
        margin-bottom: 10px;
    }

    .stat-value {
        font-size: 1.3rem;
    }

    .quiz-card {
        padding: 15px;
    }

    .question-text {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }

    .option {
        padding: 12px 18px;
    }

    .login-card {
        padding: 25px;
    }

    .completion-card {
        padding: 20px;
    }

    .trophy {
        font-size: 50px;
    }

    .final-score {
        font-size: 2.5rem;
    }
}

/* Very short screens - ultra compact */
@media (max-height: 600px) {
    .header {
        padding: 5px 10px;
    }

    .header h1 {
        font-size: 1.3rem;
    }

    .stats-bar {
        padding: 6px;
        margin-bottom: 6px;
    }

    .stat-value {
        font-size: 1rem;
    }

    .stat-label {
        font-size: 0.6rem;
    }

    .user-greeting {
        padding: 6px 10px;
        margin-bottom: 6px;
        font-size: 0.8rem;
    }

    .progress-container {
        height: 4px;
        margin-bottom: 6px;
    }

    .quiz-card {
        padding: 10px;
    }

    .question-number {
        padding: 3px 10px;
        font-size: 0.65rem;
        margin-bottom: 6px;
    }

    .question-text {
        font-size: 0.95rem;
        margin-bottom: 8px;
    }

    .option {
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .login-card {
        padding: 15px;
    }

    .login-card h2 {
        font-size: 1.2rem;
        margin-bottom: 12px;
    }

    .completion-card {
        padding: 15px;
    }

    .trophy {
        font-size: 40px;
    }

    .final-score {
        font-size: 2rem;
    }
}

/* Responsive - No scroll on small screens */
@media (max-width: 600px) {
    html, body {
        height: 100%;
        overflow: hidden;
    }

    .container {
        padding: 8px;
        height: 100vh;
        height: 100dvh;
        display: flex;
        flex-direction: column;
    }

    .header {
        padding: 8px;
        flex-shrink: 0;
    }

    .header h1 {
        font-size: 1.4rem;
    }

    .header .subtitle {
        display: none;
    }

    /* Login screen mobile */
    #loginScreen.active {
        flex: 1;
        flex-direction: column;
        justify-content: center;
    }

    .login-card {
        padding: 20px;
        margin: 0 auto;
    }

    .login-card h2 {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }

    .input-group {
        margin-bottom: 15px;
    }

    .input-group input {
        padding: 12px 15px;
        font-size: 1rem;
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }

    /* Game screen mobile */
    #gameScreen.active {
        flex: 1;
        flex-direction: column;
        overflow: hidden;
    }

    .user-greeting {
        padding: 8px 12px;
        margin-bottom: 8px;
        flex-shrink: 0;
        font-size: 0.85rem;
    }

    .stats-bar {
        padding: 8px;
        margin-bottom: 8px;
        gap: 5px;
        flex-shrink: 0;
    }

    .stat-value {
        font-size: 1.1rem;
    }

    .stat-label {
        font-size: 0.65rem;
    }

    .progress-container {
        margin-bottom: 8px;
        height: 6px;
        flex-shrink: 0;
    }

    .quiz-card {
        padding: 12px;
        margin-bottom: 0;
        flex: 1;
        display: flex;
        flex-direction: column;
        overflow: hidden;
        border-radius: 15px;
    }

    .quiz-card::before {
        display: none;
    }

    .question-number {
        padding: 4px 12px;
        font-size: 0.7rem;
        margin-bottom: 8px;
        flex-shrink: 0;
    }

    .question-text {
        font-size: 1rem;
        line-height: 1.4;
        margin-bottom: 10px;
        flex-shrink: 0;
    }

    .options {
        gap: 6px;
        flex: 1;
        overflow-y: auto;
    }

    .option {
        padding: 10px 12px;
        font-size: 0.9rem;
        border-radius: 8px;
        flex-shrink: 0;
    }

    .option:hover:not(.disabled) {
        transform: none;
    }

    #resultContainer {
        flex-shrink: 0;
        max-height: 30vh;
        overflow-y: auto;
    }

    .result-message {
        padding: 10px;
        margin-top: 10px;
        font-size: 0.9rem;
    }

    .fun-fact {
        padding: 8px;
        font-size: 0.8rem;
        margin-top: 8px;
    }

    .nav-buttons {
        margin-top: 10px;
        flex-shrink: 0;
        padding-bottom: env(safe-area-inset-bottom, 0);
    }

    #nextBtn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }

    .btn-nav {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    /* Completion screen mobile */
    #completionScreen.active {
        flex: 1;
        flex-direction: column;
        justify-content: center;
        overflow: hidden;
    }

    .completion-card {
        padding: 20px;
        margin: 0;
    }

    .trophy {
        font-size: 50px;
        margin-bottom: 10px;
    }

    .completion-card h2 {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }

    .final-score {
        font-size: 2.5rem;
        margin: 15px 0;
    }

    .rank {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .streak-indicator {
        top: 10px;
        right: 10px;
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

/* Loading indicator */
.loading-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px;
    margin-bottom: 15px;
    color: var(--gold-light);
    font-style: italic;
    font-size: 0.95rem;
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(212, 175, 55, 0.3);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn:disabled::after {
    display: none;
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Large screens - use more space */
@media (min-width: 1024px) {
    .container {
        max-width: 1100px;
    }

    .options {
        gap: 16px;
    }

    .option {
        flex: 1;
        display: flex;
        align-items: center;
        font-size: 1.15rem;
    }
}

/* Streak indicator */
.streak-indicator {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    padding: 10px 20px;
    border-radius: 25px;
    font-family: var(--font-heading);
    font-weight: 700;
    color: white;
    box-shadow: 0 5px 20px rgba(255, 107, 53, 0.4);
    transform: scale(0);
    transition: transform 0.3s ease;
    z-index: 100;
}

.streak-indicator.visible {
    transform: scale(1);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 5px 20px rgba(255, 107, 53, 0.4); }
    50% { box-shadow: 0 5px 30px rgba(255, 107, 53, 0.8); }
}

/* Result modal - hidden by default, shown only on small screens */
.result-modal-overlay {
    display: none;
}

@media (max-width: 600px) {
    /* Hide inline result on mobile — modal handles it */
    #resultContainer {
        display: none !important;
    }

    /* Hide inline nav buttons when modal is active */
    #gameScreen.modal-active .nav-buttons {
        display: none !important;
    }

    .result-modal-overlay.visible {
        display: flex;
        position: fixed;
        inset: 0;
        z-index: 50;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        align-items: flex-end;
        justify-content: center;
    }

    .result-modal {
        width: 100%;
        max-height: 80vh;
        overflow-y: auto;
        background: linear-gradient(180deg, #1e1440 0%, #1a1a2e 100%);
        border-top: 3px solid var(--gold);
        border-radius: 20px 20px 0 0;
        padding: 8px 20px 20px;
        padding-bottom: calc(20px + env(safe-area-inset-bottom, 0));
        animation: modalSlideUp 0.3s ease-out;
    }

    /* Grab handle */
    .result-modal::before {
        content: '';
        display: block;
        width: 40px;
        height: 4px;
        background: rgba(255, 255, 255, 0.25);
        border-radius: 2px;
        margin: 0 auto 14px;
    }

    /* Strip panel styling — unified flow inside modal */
    .result-modal .result-message {
        margin: 0;
        padding: 0 0 10px;
        border: none;
        background: none;
        text-align: left;
        font-size: 1.05rem;
        border-radius: 0;
        animation: none;
    }

    .result-modal .result-message.correct {
        background: none;
        border: none;
        color: #86efac;
    }

    .result-modal .result-message.incorrect {
        background: none;
        border: none;
        color: #fca5a5;
    }

    .result-modal .fun-fact {
        margin: 0;
        padding: 10px 0 0;
        border-left: none;
        border-top: 1px solid rgba(212, 175, 55, 0.2);
        background: none;
        font-size: 0.95rem;
        border-radius: 0;
    }

    .result-modal .wiki-link {
        display: block;
        margin-top: 10px;
        font-size: 0.9rem;
    }

    .result-modal .wiki-link-small {
        display: none;
    }

    .modal-nav {
        display: flex;
        justify-content: center;
        gap: 10px;
        margin-top: 16px;
    }

    @keyframes modalSlideUp {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }
}