/**
 * Estilos do jogo RamTail
 * Design inspirado em pastagem com visual amigavel
 */

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

/* Variaveis CSS */
:root {
    /* Cores do tema */
    --cor-ceu-topo: #87CEEB;
    --cor-ceu-base: #B0E0E6;
    --cor-colina-fundo: #5B8C51;
    --cor-colina-frente: #4A7A42;
    --cor-container: #3D6B35;
    --cor-container-escuro: #2D5229;
    --cor-canvas: #7BC96F;
    --cor-canvas-claro: #8FD882;
    --cor-grid: rgba(107, 181, 96, 0.5);
    --cor-texto: #FFFFFF;
    --cor-texto-escuro: #2D5229;
    --cor-destaque: #FFD93D;
    --cor-botao: #4A8C3F;
    --cor-botao-hover: #5AA04D;

    /* Sombras */
    --sombra-container: 0 20px 60px rgba(0, 0, 0, 0.4);
    --sombra-canvas: inset 0 4px 15px rgba(0, 0, 0, 0.15);
    --sombra-tecla: 0 3px 0 #1a1a1a, 0 4px 8px rgba(0, 0, 0, 0.3);

    /* Espacamentos */
    --radius-grande: 24px;
    --radius-medio: 16px;
    --radius-pequeno: 8px;
}

/* Corpo da pagina */
body {
    font-family: 'Nunito', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    overflow: hidden;
    position: relative;
    width: 100vw;
    height: 100vh;
}

/* ========== BACKGROUND ========== */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.sky {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        var(--cor-ceu-topo) 0%,
        var(--cor-ceu-base) 60%,
        #C5E8CE 100%
    );
}

.hills {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 45%;
}

.hill {
    position: absolute;
    bottom: 0;
    width: 100%;
    border-radius: 50% 50% 0 0;
}

.hill-back {
    height: 100%;
    background: linear-gradient(
        to bottom,
        var(--cor-colina-fundo) 0%,
        #4A7A42 100%
    );
}

.hill-front {
    height: 70%;
    background: linear-gradient(
        to bottom,
        var(--cor-colina-frente) 0%,
        #3D6B35 100%
    );
    transform: translateY(10%);
}

/* ========== CONTAINER PRINCIPAL (escondido - canvas fullscreen) ========== */
.game-container {
    display: none;
}

/* ========== CABECALHO ========== */
.game-header {
    margin-bottom: 20px;
}

.game-title {
    color: var(--cor-texto);
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 5px;
    text-shadow: 2px 3px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 1px;
}

.game-subtitle {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
    font-weight: 600;
}

/* ========== AREA DO CANVAS (fullscreen) ========== */
.canvas-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cor-canvas);
    z-index: 1;
}

#gameCanvas {
    display: block;
    background: var(--cor-canvas);
    cursor: pointer;
}

#gameCanvas:focus {
    outline: none;
}

/* ========== SECAO DE CONTROLES ========== */
.controls {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.controls-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--cor-texto);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.keys-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}

.key-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Estilo das teclas */
.key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 4px 8px;
    background: linear-gradient(180deg, #f5f5f5 0%, #d9d9d9 100%);
    border: 1px solid #c0c0c0;
    border-radius: 6px;
    color: #333;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: var(--sombra-tecla);
    font-family: inherit;
}

.key-wide {
    min-width: 70px;
    font-size: 0.75rem;
}

.key-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    font-weight: 600;
}

/* ========== LEGENDA ========== */
.legend {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--cor-texto);
}

.legend-emoji {
    font-size: 1.3rem;
}

.legend-text {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ========== RODAPE ========== */
.footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========== SPARKLE DECORATIVO (escondido em modo fullscreen) ========== */
.sparkle {
    display: none;
}

/* ========== RESPONSIVIDADE ========== */
/* Canvas é responsivo automaticamente via JavaScript */