/* ============================================
   Sigma Case - Feuille de styles
   Inspiration : Pulse Pattern (gradient violet/cyan)
   ============================================ */

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

#game-main {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100dvh;
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

#game-container {
    width: 100%;
    max-width: 540px;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 14px;
    gap: 8px;
}

/* --- En-tête --- */
#game-header {
    width: 100%;
    text-align: center;
    flex-shrink: 0;
}

#game-title {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(90deg, #00d2ff, #7b2ff7, #ff6fd8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

#scores-container {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.score-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.score-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #888;
}

.score-number {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
}

/* --- Barre de menu (sélecteurs) --- */
#menu-bar {
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.menu-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.menu-row label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #b0b0ff;
}

#menu-bar select {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(123, 47, 247, 0.4);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 0.9rem;
    cursor: pointer;
}

#menu-bar select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --- Barre d'informations --- */
#info-bar {
    width: 100%;
    display: flex;
    justify-content: space-around;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 6px 10px;
    flex-shrink: 0;
}

.info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.info-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #888;
}

.info-value {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

/* --- Barre objectif --- */
#target-bar {
    width: 100%;
    text-align: center;
    flex-shrink: 0;
}

.target-line {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 12px;
}

.target-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #b0b0ff;
}

.target-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(90deg, #00d2ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.current-sum {
    margin-top: 2px;
    font-size: 0.9rem;
    color: #b0b0ff;
    min-height: 1.2em;
}

.current-sum.match {
    color: #00e676;
    font-weight: 600;
}

/* --- Message d'état --- */
#message-container {
    width: 100%;
    text-align: center;
    min-height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

#game-message {
    font-size: 0.95rem;
    font-weight: 500;
    color: #b0b0ff;
    transition: opacity 0.3s ease;
}

#game-message.success {
    color: #00e676;
}

#game-message.error {
    color: #ff5252;
}

/* --- Grille de jeu (canvas) --- */
#grid-container {
    flex: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    padding: 4px 0;
}

#game-canvas {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.3);
    touch-action: none;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
}

/* --- Boutons --- */
#controls-container {
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 6px 0 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.game-btn {
    padding: 12px 30px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: transform 0.15s ease, box-shadow 0.2s ease, opacity 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    color: #fff;
}

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

.btn-play {
    background: linear-gradient(135deg, #00d2ff, #7b2ff7);
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3);
}

.btn-stop {
    background: linear-gradient(135deg, #ff5252, #d50000);
    box-shadow: 0 4px 15px rgba(255, 82, 82, 0.3);
}

.btn-rules {
    background: linear-gradient(135deg, #ff6fd8, #7b2ff7);
    box-shadow: 0 4px 15px rgba(123, 47, 247, 0.3);
}

/* --- Modal Règles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    animation: fadeIn 0.25s ease;
}

.modal-overlay.hidden {
    display: none !important;
}

.modal-content {
    background: linear-gradient(135deg, #1a1a3e, #2a2a5e);
    border: 1px solid rgba(123, 47, 247, 0.4);
    border-radius: 16px;
    padding: 24px 20px;
    max-width: 460px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 14px;
    background: none;
    border: none;
    color: #aaa;
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px 8px;
    transition: color 0.2s;
}

.modal-close:hover {
    color: #fff;
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 14px;
    background: linear-gradient(90deg, #00d2ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

.modal-body {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #ccc;
}

.modal-body h3 {
    font-size: 0.95rem;
    color: #b0b0ff;
    margin: 14px 0 6px;
    font-weight: 600;
}

.modal-body p { margin-bottom: 8px; }

.modal-body ol,
.modal-body ul {
    padding-left: 20px;
    margin-bottom: 8px;
}

.modal-body li { margin-bottom: 4px; }

.hidden { display: none !important; }

/* --- Responsive --- */
@media (max-height: 600px) {
    #game-container {
        padding: 5px 10px;
        gap: 4px;
    }
    #game-title { font-size: 1.2rem; margin-bottom: 2px; }
    .score-number { font-size: 1.1rem; }
    .target-number { font-size: 1.5rem; }
    #info-bar { padding: 4px 8px; }
    .info-label { font-size: 0.6rem; }
    .info-value { font-size: 0.85rem; }
    .game-btn { padding: 10px 24px; font-size: 0.85rem; }
}

@media (min-width: 768px) {
    #game-container { padding: 20px; gap: 12px; }
    #game-title { font-size: 2rem; }
    .score-number { font-size: 1.8rem; }
    .target-number { font-size: 2.4rem; }
}