/* ===================================
   VAMOS CONTAR V2 - CSS
   Jogo de sequência numérica 1-50
   =================================== */

/* Root Variables */
:root {
    --primary: #667eea;
    --secondary: #764ba2;
    --success: #51CF66;
    --error: #FF6B6B;
    --warning: #FFE66D;
    --bg-light: #f0f4f8;
    --text-dark: #2d3748;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    --font-primary: 'Nunito', 'Segoe UI', sans-serif;
    --font-secondary: 'Open Sans', Arial, sans-serif;
}

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

body {
    font-family: var(--font-secondary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* ===================================
   GAME CONTAINER
   =================================== */

.game-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: clamp(16px, 3vw, 40px);
    box-shadow: var(--shadow-lg);
    position: relative;
    min-height: 500px;
    margin: 20px 0;
}

.game-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    margin: 0;
    border-radius: 0;
    padding: 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Fullscreen Button */
.fullscreen-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 100;
    color: white;
}

.fullscreen-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* ===================================
   LEVEL SELECTION
   =================================== */

.level-selection {
    text-align: center;
    padding: 10px;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
    gap: 12px;
    margin-top: 16px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.level-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    padding: clamp(12px, 3vw, 30px) 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.level-card:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.level-icon {
    font-size: clamp(32px, 8vw, 60px);
    margin-bottom: 8px;
    animation: float 3s ease-in-out infinite;
}

.level-card h3 {
    color: #fff;
    font-size: clamp(16px, 4vw, 24px);
    font-weight: 700;
    margin-bottom: 6px;
    font-family: var(--font-primary);
}

.level-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(12px, 3vw, 16px);
    margin-bottom: 10px;
}

.level-age {
    display: inline-block;
    background: var(--warning);
    color: var(--text-dark);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: clamp(11px, 2.5vw, 14px);
    font-weight: 600;
}

/* ===================================
   GAME PLAY SCREEN
   =================================== */

.stats-header {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.stat-item {
    text-align: center;
}

.stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    margin-bottom: 5px;
    font-weight: 600;
}

.stat-value {
    display: block;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    font-family: var(--font-primary);
}

/* ===================================
   NUMBERS GRID
   =================================== */

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
    min-height: 400px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.number-btn {
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 15px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    font-family: var(--font-primary);
    user-select: none;
}

.number-btn:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, #fff 0%, #e8e8e8 100%);
    border-color: var(--primary);
}

.number-btn.clicked {
    animation: clickEffect 0.6s ease;
    pointer-events: none;
    opacity: 0;
}

.number-btn.wrong {
    animation: shake 0.5s ease;
    background: linear-gradient(135deg, #FF6B6B 0%, #C92A2A 100%);
    color: white;
    border-color: #C92A2A;
}

/* ===================================
   ACTION BUTTONS
   =================================== */

.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-action {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    padding: 15px 30px;
    font-size: 18px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-primary);
}

.btn-action:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-restart {
    background: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    border-color: #44A08D;
}

.btn-quit {
    background: linear-gradient(135deg, #FF6B6B 0%, #C92A2A 100%);
    border-color: #C92A2A;
}

/* ===================================
   RESULT SCREEN
   =================================== */

.result-screen {
    text-align: center;
    padding: 40px 20px;
}

.result-icon {
    font-size: 120px;
    margin-bottom: 20px;
    animation: resultAppear 0.8s ease;
}

.result-title {
    color: #fff;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    font-family: var(--font-primary);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.result-message {
    color: rgba(255, 255, 255, 0.9);
    font-size: 24px;
    margin-bottom: 30px;
}

.result-medal {
    font-size: 100px;
    margin: 20px 0;
    animation: medalSpin 1s ease;
}

.result-stats {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin: 30px auto;
    max-width: 500px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.result-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.result-stat:last-child {
    border-bottom: none;
}

.result-stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 18px;
    font-weight: 600;
}

.result-stat-value {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    font-family: var(--font-primary);
}

.result-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.btn-result {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    padding: 15px 30px;
    font-size: 18px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-primary);
}

.btn-result:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-next {
    background: linear-gradient(135deg, #51CF66 0%, #37B24D 100%);
    border-color: #37B24D;
}

.btn-replay {
    background: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    border-color: #44A08D;
}

.btn-home {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #764ba2;
}

/* ===================================
   ANIMATIONS
   =================================== */

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

@keyframes clickEffect {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3) rotate(10deg);
        opacity: 0.7;
    }
    100% {
        transform: scale(0);
        opacity: 0;
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    50% { transform: translateX(10px); }
    75% { transform: translateX(-10px); }
}

@keyframes resultAppear {
    0% {
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

@keyframes medalSpin {
    0% {
        transform: rotateY(0deg) scale(0);
    }
    50% {
        transform: rotateY(180deg) scale(1.2);
    }
    100% {
        transform: rotateY(360deg) scale(1);
    }
}

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

@media (max-width: 1024px) {
    .result-icon {
        font-size: 80px;
    }
    .result-title {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .game-container {
        padding: 16px;
        min-height: 450px;
    }
    
    .level-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .level-card {
        padding: 25px 15px;
    }
    
    .level-icon {
        font-size: 50px;
    }
    
    .level-card h3 {
        font-size: 20px;
    }
    
    .level-card p {
        font-size: 14px;
    }
    
    .stats-header {
        padding: 15px;
        gap: 10px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .stat-value {
        font-size: 20px;
    }
    
    .numbers-grid {
        grid-template-columns: repeat(auto-fill, minmax(65px, 1fr));
        gap: 10px;
        padding: 15px;
        min-height: 350px;
    }
    
    .number-btn {
        width: 65px;
        height: 65px;
        font-size: 26px;
    }
    
    .result-icon {
        font-size: 80px;
    }
    
    .result-title {
        font-size: 36px;
    }
    
    .result-message {
        font-size: 18px;
    }
    
    .result-medal {
        font-size: 70px;
    }
    
    .result-stat-label {
        font-size: 16px;
    }
    
    .result-stat-value {
        font-size: 20px;
    }
    
    .btn-action,
    .btn-result {
        padding: 12px 24px;
        font-size: 16px;
    }
}

@media (max-width: 600px) {
    .level-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .game-container {
        padding: 12px;
        border-radius: 15px;
    }
    
    .fullscreen-btn {
        width: 40px;
        height: 40px;
        top: 10px;
        right: 10px;
    }
    
    .level-selection h2 {
        font-size: 24px !important;
    }
    
    .level-icon {
        font-size: 40px;
    }
    
    .level-card h3 {
        font-size: 18px;
    }
    
    .numbers-grid {
        grid-template-columns: repeat(auto-fill, minmax(55px, 1fr));
        gap: 8px;
        padding: 10px;
        min-height: 300px;
    }
    
    .number-btn {
        width: 55px;
        height: 55px;
        font-size: 22px;
        border-width: 2px;
    }
    
    .stat-value {
        font-size: 18px;
    }
    
    .result-title {
        font-size: 28px;
    }
    
    .result-message {
        font-size: 16px;
    }
    
    .result-stats {
        padding: 20px;
    }
    
    .btn-action,
    .btn-result {
        padding: 10px 20px;
        font-size: 14px;
    }

    .game-container.fullscreen .result-screen {
        padding: 12px 10px calc(18px + env(safe-area-inset-bottom));
    }

    .game-container.fullscreen .result-icon {
        font-size: 56px;
        margin-bottom: 8px;
    }

    .game-container.fullscreen .result-title {
        font-size: 24px;
        margin-bottom: 8px;
    }

    .game-container.fullscreen .result-message {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .game-container.fullscreen .result-medal {
        font-size: 56px;
        margin: 8px 0;
    }

    .game-container.fullscreen .result-stats {
        margin: 12px auto;
        padding: 14px;
        border-radius: 14px;
    }

    .game-container.fullscreen .result-stat {
        padding: 9px 0;
    }

    .game-container.fullscreen .result-stat-label {
        font-size: 15px;
    }

    .game-container.fullscreen .result-stat-value {
        font-size: 18px;
    }

    .game-container.fullscreen .result-buttons {
        margin-top: 10px;
        gap: 8px;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-width: 360px;
        margin-left: auto;
        margin-right: auto;
    }

    .game-container.fullscreen .btn-result {
        width: 100%;
        max-width: none;
        padding: 10px 10px;
        font-size: 14px;
    }

    .game-container.fullscreen .result-buttons .btn-result:last-child {
        grid-column: 1 / -1;
    }
}

@media (max-height: 760px) and (max-width: 480px) {
    .game-container.fullscreen .result-medal {
        display: none;
    }
}

/* ===================================
   ACCESSIBILITY
   =================================== */

.number-btn:focus,
.btn-action:focus,
.btn-result:focus,
.fullscreen-btn:focus {
    outline: 3px solid var(--warning);
    outline-offset: 3px;
}

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

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .number-btn {
        border-width: 4px;
    }
    
    .level-card {
        border-width: 3px;
    }
}

/* Fullscreen mobile: 3 cards lado a lado para caber na tela */
.game-container.fullscreen .level-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 10px;
}

.game-container.fullscreen .level-card {
    padding: 12px 8px;
}

.game-container.fullscreen .level-icon {
    font-size: 28px;
    margin-bottom: 6px;
}

.game-container.fullscreen .level-card h3 {
    font-size: 15px;
    margin-bottom: 4px;
}

.game-container.fullscreen .level-card p {
    font-size: 11px;
    margin-bottom: 8px;
}

.game-container.fullscreen .level-age {
    padding: 4px 8px;
    font-size: 11px;
}

.game-container.fullscreen .level-selection {
    padding: 6px;
}

.game-container.fullscreen .level-selection h2 {
    font-size: 20px !important;
    margin-bottom: 4px !important;
}