/* ===========================================
   Verdad o Reto - Styles
   Mobile-first, festive design
   =========================================== */

/* CSS Variables */
:root {
    /* Primary colors - festive */
    --color-primary: #FF6B6B;
    --color-secondary: #4ECDC4;
    --color-accent: #FFE66D;

    /* Level colors */
    --color-soft: #95E1A3;
    --color-medium: #FFB347;
    --color-spicy: #FF6B6B;

    /* Backgrounds */
    --bg-dark: #1A1A2E;
    --bg-card: #16213E;
    --bg-card-light: #1F2B47;

    /* Text */
    --text-primary: #FFFFFF;
    --text-secondary: #B8B8D1;
    --text-muted: #6B6B8D;

    /* Effects */
    --glow-truth: 0 0 30px rgba(255, 107, 107, 0.4);
    --glow-dare: 0 0 30px rgba(78, 205, 196, 0.4);
    --glow-accent: 0 0 20px rgba(255, 230, 109, 0.3);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Nunito', system-ui, -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Screen Management */
.screen {
    display: none;
    min-height: 100vh;
    min-height: 100dvh;
    padding: var(--spacing-md);
}

.screen.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

/* ===========================================
   Header
   =========================================== */
.header {
    text-align: center;
    padding: var(--spacing-md) 0;
}

.party-icons {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    animation: bounce 2s ease-in-out infinite;
}

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

.title {
    font-family: 'Fredoka One', cursive, system-ui;
    font-size: 2.5rem;
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.5);
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* ===========================================
   Level Selector
   =========================================== */
.level-selector {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-card);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    width: 100%;
}

.level-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-xs);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-secondary);
    min-height: 56px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.level-btn:active {
    transform: scale(0.95);
}

.level-btn.active {
    background: var(--bg-card-light);
    color: var(--text-primary);
}

.level-btn[data-level="soft"].active {
    box-shadow: inset 0 0 0 2px var(--color-soft);
}

.level-btn[data-level="medium"].active {
    box-shadow: inset 0 0 0 2px var(--color-medium);
}

.level-btn[data-level="spicy"].active {
    box-shadow: inset 0 0 0 2px var(--color-spicy);
}

.level-icon {
    font-size: 1.3rem;
}

.level-name {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ===========================================
   Main Buttons (Verdad / Reto)
   =========================================== */
.main-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
}

.btn-main {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    min-height: 80px;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-xl);
    font-family: 'Fredoka One', cursive, system-ui;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-main:active {
    transform: scale(0.97);
}

.btn-truth {
    background: linear-gradient(135deg, var(--color-primary), #FF8E8E);
    color: white;
    box-shadow: var(--glow-truth);
}

.btn-truth:hover {
    box-shadow: 0 0 40px rgba(255, 107, 107, 0.6);
}

.btn-dare {
    background: linear-gradient(135deg, var(--color-secondary), #6EE7E0);
    color: white;
    box-shadow: var(--glow-dare);
}

.btn-dare:hover {
    box-shadow: 0 0 40px rgba(78, 205, 196, 0.6);
}

.btn-icon {
    font-size: 1.8rem;
}

.btn-text {
    letter-spacing: 2px;
}

/* ===========================================
   Session Controls & Stats
   =========================================== */
.session-controls {
    width: 100%;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--bg-card-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: 'Nunito', system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    min-height: 44px;
}

.btn-secondary:active {
    transform: scale(0.97);
    background: var(--bg-card-light);
}

.stats {
    display: flex;
    gap: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.stat-count {
    font-weight: 700;
    color: var(--text-secondary);
}

/* ===========================================
   Reveal Screen (Animation)
   =========================================== */
.reveal-container {
    justify-content: center;
}

.reveal-box {
    width: 200px;
    height: 200px;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: spin-reveal 1.5s ease-in-out;
    box-shadow: 0 0 40px rgba(255, 230, 109, 0.3);
}

@keyframes spin-reveal {
    0% {
        transform: rotateY(0deg) scale(0.8);
        opacity: 0;
    }
    20% {
        opacity: 1;
        transform: rotateY(180deg) scale(1);
    }
    40% {
        transform: rotateY(360deg) scale(1);
    }
    60% {
        transform: rotateY(540deg) scale(1);
    }
    80% {
        transform: rotateY(720deg) scale(1);
    }
    100% {
        transform: rotateY(720deg) scale(1);
    }
}

.reveal-text {
    font-family: 'Fredoka One', cursive, system-ui;
    font-size: 3rem;
    color: var(--color-accent);
    animation: pulse-text 0.3s ease-in-out infinite alternate;
}

@keyframes pulse-text {
    from { opacity: 0.5; }
    to { opacity: 1; }
}

.reveal-loading {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-lg);
}

.loading-bar {
    width: 200px;
    height: 4px;
    background: var(--bg-card);
    border-radius: 2px;
    overflow: hidden;
}

.loading-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    animation: loading 1.5s ease-in-out;
}

@keyframes loading {
    from { width: 0%; }
    to { width: 100%; }
}

/* ===========================================
   Result Screen
   =========================================== */
.result-container {
    justify-content: center;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.result-card {
    width: 100%;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    animation: card-appear 0.5s ease-out;
}

@keyframes card-appear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.result-card.truth {
    box-shadow: var(--glow-truth);
    border: 2px solid var(--color-primary);
}

.result-card.dare {
    box-shadow: var(--glow-dare);
    border: 2px solid var(--color-secondary);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--bg-card-light);
}

.result-type {
    font-family: 'Fredoka One', cursive, system-ui;
    font-size: 1.1rem;
    letter-spacing: 2px;
}

.result-card.truth .result-type {
    color: var(--color-primary);
}

.result-card.dare .result-type {
    color: var(--color-secondary);
}

.result-level {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.result-text {
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.6;
    text-align: center;
    padding: var(--spacing-md) 0;
}

/* Result Actions */
.result-actions {
    display: flex;
    gap: var(--spacing-sm);
    width: 100%;
}

.btn-action {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-lg);
    font-family: 'Nunito', system-ui, sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    min-height: 56px;
}

.btn-action:active {
    transform: scale(0.97);
}

.btn-action.btn-truth {
    background: linear-gradient(135deg, var(--color-primary), #FF8E8E);
    color: white;
}

.btn-action.btn-dare {
    background: linear-gradient(135deg, var(--color-secondary), #6EE7E0);
    color: white;
}

.result-secondary {
    display: flex;
    gap: var(--spacing-sm);
    width: 100%;
}

.result-secondary .btn-secondary {
    flex: 1;
}

.btn-share {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* ===========================================
   Modals
   =========================================== */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    z-index: 100;
}

.modal[hidden] {
    display: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 340px;
    width: 100%;
    text-align: center;
    animation: modal-appear 0.3s ease-out;
}

@keyframes modal-appear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.modal-title {
    font-family: 'Fredoka One', cursive, system-ui;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.modal-message {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.modal-actions .btn-secondary,
.modal-actions .btn-primary {
    flex: 1;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary), #FF8E8E);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-family: 'Nunito', system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    min-height: 44px;
}

.btn-primary:active {
    transform: scale(0.97);
}

.btn-spicy {
    background: linear-gradient(135deg, var(--color-spicy), #FF8E8E);
}

/* ===========================================
   Toast
   =========================================== */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    font-weight: 600;
    z-index: 200;
    animation: toast-appear 0.3s ease-out;
}

.toast[hidden] {
    display: none;
}

@keyframes toast-appear {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ===========================================
   Responsive - Tablet+
   =========================================== */
@media (min-width: 768px) {
    .container {
        max-width: 500px;
    }

    .title {
        font-size: 3rem;
    }

    .party-icons {
        font-size: 3rem;
    }

    .btn-main {
        min-height: 90px;
        font-size: 1.8rem;
    }

    .result-text {
        font-size: 1.5rem;
    }
}

/* ===========================================
   Accessibility - Reduced Motion
   =========================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===========================================
   Focus states for keyboard navigation
   =========================================== */
.btn-main:focus-visible,
.btn-secondary:focus-visible,
.btn-primary:focus-visible,
.btn-action:focus-visible,
.level-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}