/**
 * Mảnh Ghép Kỳ Bí - Game Styles
 */

/* Variables */
#mgkb-game-container {
    --mgkb-gold: #D4AF37;
    --mgkb-gold-light: #F4E4BC;
    --mgkb-gold-dark: #8B7355;
    --mgkb-purple-deep: #1a0a2e;
    --mgkb-purple-mid: #2D1B4E;
    --mgkb-fire: #E63946;
    --mgkb-water: #4361EE;
    --mgkb-sun: #FFD700;
    --mgkb-mystery: #9B5DE5;
    --mgkb-light: #F0F0F0;
}

#mgkb-game-container {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a0a2e 0%, #16213e 50%, #0f0f23 100%);
    min-height: 100vh;
    color: var(--mgkb-gold-light);
    position: relative;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

#mgkb-game-container * {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

/* Particles */
#mgkb-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.mgkb-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--mgkb-gold);
    border-radius: 50%;
    opacity: 0.4;
    animation: mgkbFloatUp 12s infinite linear;
}

@keyframes mgkbFloatUp {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 0.6; transform: scale(1); }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100vh) scale(0); opacity: 0; }
}

/* Screens */
.mgkb-screen {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.mgkb-screen.active {
    display: flex;
}

/* Menu Container */
.mgkb-menu-container {
    text-align: center;
    padding: 40px 50px;
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.95), rgba(26, 10, 46, 0.98));
    border: 2px solid var(--mgkb-gold);
    border-radius: 20px;
    box-shadow: 0 0 60px rgba(212, 175, 55, 0.2), inset 0 0 40px rgba(0,0,0,0.4);
    position: relative;
    max-width: 400px;
    width: 100%;
}

.mgkb-menu-container::before,
.mgkb-menu-container::after {
    content: '✦';
    position: absolute;
    color: var(--mgkb-gold);
    font-size: 18px;
}
.mgkb-menu-container::before { top: -10px; left: 50%; transform: translateX(-50%); }
.mgkb-menu-container::after { bottom: -10px; left: 50%; transform: translateX(-50%); }

.mgkb-game-logo h1 {
    font-size: clamp(1.6rem, 5vw, 2.4rem);
    font-weight: 700;
    background: linear-gradient(180deg, var(--mgkb-gold-light), var(--mgkb-gold), var(--mgkb-gold-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    line-height: 1.2;
    margin: 0 0 10px 0;
}

.mgkb-tagline {
    font-style: italic;
    color: var(--mgkb-gold-light);
    opacity: 0.8;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

/* Menu Buttons */
.mgkb-menu-btn {
    display: block;
    width: 100%;
    padding: 14px 25px;
    margin-bottom: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    border: 2px solid var(--mgkb-gold);
    background: transparent;
    color: var(--mgkb-gold-light);
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    border-radius: 5px;
}

.mgkb-menu-btn:hover {
    background: rgba(212, 175, 55, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.3);
}

.mgkb-menu-btn.primary {
    background: linear-gradient(135deg, var(--mgkb-gold), var(--mgkb-gold-dark));
    color: var(--mgkb-purple-deep);
}

.mgkb-menu-btn.primary:hover {
    background: linear-gradient(135deg, var(--mgkb-gold-light), var(--mgkb-gold));
}

/* Other Games Section */
.mgkb-other-games-section {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
}

.mgkb-other-games-title {
    font-size: 0.85rem;
    color: var(--mgkb-gold);
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.mgkb-other-games-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.mgkb-game-ad-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 6px;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mgkb-game-ad-item:hover {
    background: rgba(212, 175, 55, 0.2);
    border-color: var(--mgkb-gold);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
}

.mgkb-game-ad-icon {
    font-size: 1.6rem;
    margin-bottom: 4px;
}

.mgkb-game-ad-name {
    font-size: 0.6rem;
    color: var(--mgkb-gold-light);
    text-align: center;
    line-height: 1.2;
}

/* Back Button */
.mgkb-back-btn {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 8px 18px;
    background: rgba(0,0,0,0.6);
    border: 1px solid var(--mgkb-gold);
    color: var(--mgkb-gold-light);
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s;
    font-size: 0.9rem;
    border-radius: 5px;
}

.mgkb-back-btn:hover {
    background: var(--mgkb-gold);
    color: var(--mgkb-purple-deep);
}

/* Screen Header */
.mgkb-screen-header {
    text-align: center;
    margin-bottom: 20px;
}

.mgkb-screen-header h2 {
    font-size: 1.6rem;
    color: var(--mgkb-gold);
    margin-bottom: 5px;
}

.mgkb-screen-header p {
    opacity: 0.8;
    margin: 0;
}

/* Chapter Selector */
.mgkb-chapter-selector {
    display: flex;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.mgkb-chapter-btn {
    padding: 6px 14px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--mgkb-gold);
    color: var(--mgkb-gold-light);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 4px;
}

.mgkb-chapter-btn.active,
.mgkb-chapter-btn:hover {
    background: var(--mgkb-gold);
    color: var(--mgkb-purple-deep);
}

/* Levels Grid */
.mgkb-levels-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    max-width: 350px;
    margin: 0 auto;
}

.mgkb-level-btn {
    aspect-ratio: 1;
    border: 2px solid var(--mgkb-gold);
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.9), rgba(26, 10, 46, 0.95));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 8px;
}

.mgkb-level-btn:hover:not(.locked) {
    transform: scale(1.08);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
}

.mgkb-level-btn.locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.mgkb-level-btn.completed {
    background: linear-gradient(145deg, rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.1));
}

.mgkb-level-num {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--mgkb-gold);
}

.mgkb-level-stars {
    font-size: 0.55rem;
    margin-top: 2px;
}

.mgkb-level-stars .star { color: #555; }
.mgkb-level-stars .star.earned { color: var(--mgkb-sun); }

.mgkb-lock-icon {
    font-size: 1.1rem;
}

/* Game HUD */
.mgkb-game-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 350px;
    padding: 10px 18px;
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.95), rgba(26, 10, 46, 0.98));
    border: 2px solid var(--mgkb-gold);
    border-radius: 10px;
    margin-bottom: 12px;
}

.mgkb-hud-item {
    text-align: center;
}

.mgkb-hud-label {
    font-size: 0.65rem;
    color: var(--mgkb-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mgkb-hud-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--mgkb-gold-light);
}

.mgkb-sound-toggle {
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.3s;
}

.mgkb-sound-toggle:hover {
    background: rgba(212, 175, 55, 0.2);
}

.mgkb-sound-toggle span {
    font-size: 1.3rem;
}

/* Objectives Bar */
.mgkb-objectives-bar {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 12px;
    padding: 8px 16px;
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.mgkb-obj-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.mgkb-obj-icon {
    font-size: 1.1rem;
}

.mgkb-obj-progress {
    font-weight: 700;
    font-size: 0.9rem;
}

.mgkb-obj-item.done .mgkb-obj-progress {
    color: #4CAF50;
}

/* Game Board */
.mgkb-board-wrapper {
    padding: 10px;
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.95), rgba(26, 10, 46, 0.98));
    border: 3px solid var(--mgkb-gold);
    border-radius: 12px;
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.15), inset 0 0 40px rgba(0,0,0,0.5);
}

.mgkb-game-board {
    display: grid;
    gap: 3px;
    background: rgba(0,0,0,0.4);
    padding: 6px;
    border-radius: 8px;
}

.mgkb-tile {
    width: 38px;
    height: 38px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    user-select: none;
    position: relative;
}

.mgkb-tile:active {
    transform: scale(0.95);
}

.mgkb-tile.selected {
    transform: scale(1.15);
    box-shadow: 0 0 18px rgba(255,255,255,0.8);
    z-index: 10;
}

.mgkb-tile.hint {
    animation: mgkbHintGlow 0.8s infinite alternate;
}

@keyframes mgkbHintGlow {
    from { box-shadow: 0 0 5px rgba(255,255,255,0.5); }
    to { box-shadow: 0 0 18px rgba(255,255,255,0.9); }
}

.mgkb-tile.removing {
    animation: mgkbPopOut 0.35s ease forwards;
}

@keyframes mgkbPopOut {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); }
    100% { transform: scale(0); opacity: 0; }
}

.mgkb-tile.dropping {
    animation: mgkbDropIn 0.25s ease;
}

@keyframes mgkbDropIn {
    from { transform: translateY(-45px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Tile Types */
.mgkb-tile.water {
    background: linear-gradient(145deg, #4361EE, #3A0CA3);
    box-shadow: inset 0 -3px 6px rgba(0,0,0,0.3), 0 2px 8px rgba(67, 97, 238, 0.4);
}

.mgkb-tile.fire {
    background: linear-gradient(145deg, #E63946, #9D0208);
    box-shadow: inset 0 -3px 6px rgba(0,0,0,0.3), 0 2px 8px rgba(230, 57, 70, 0.4);
}

.mgkb-tile.sun {
    background: linear-gradient(145deg, #FFD700, #FF8C00);
    box-shadow: inset 0 -3px 6px rgba(0,0,0,0.2), 0 2px 8px rgba(255, 215, 0, 0.4);
}

.mgkb-tile.mystery {
    background: linear-gradient(145deg, #9B5DE5, #5A189A);
    box-shadow: inset 0 -3px 6px rgba(0,0,0,0.3), 0 2px 8px rgba(155, 93, 229, 0.4);
}

.mgkb-tile.light {
    background: linear-gradient(145deg, #F8F9FA, #ADB5BD);
    box-shadow: inset 0 -3px 6px rgba(0,0,0,0.15), 0 2px 8px rgba(248, 249, 250, 0.4);
}

/* Special Tiles */
.mgkb-tile.special-h::after,
.mgkb-tile.special-v::after {
    content: '';
    position: absolute;
    background: white;
    border-radius: 2px;
    box-shadow: 0 0 6px white;
}

.mgkb-tile.special-h::after {
    width: 65%;
    height: 3px;
}

.mgkb-tile.special-v::after {
    width: 3px;
    height: 65%;
}

.mgkb-tile.special-bomb::before {
    content: '💥';
    position: absolute;
    font-size: 0.5rem;
    bottom: 1px;
    right: 1px;
}

.mgkb-tile.special-magic {
    animation: mgkbMagicPulse 1.5s infinite;
}

@keyframes mgkbMagicPulse {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.4); }
}

/* Obstacles */
.mgkb-tile.has-brick {
    border: 2px solid #8B7355;
}

.mgkb-tile.has-brick::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(90deg, transparent 0 6px, rgba(139, 115, 85, 0.3) 6px 8px);
    border-radius: 4px;
    pointer-events: none;
}

.mgkb-tile.has-vine {
    border: 2px solid #2D6A4F;
}

.mgkb-tile.has-vine::before {
    content: '🌿';
    position: absolute;
    font-size: 0.6rem;
    top: -2px;
    right: -2px;
}

.mgkb-tile.locked-tile {
    opacity: 0.6;
    cursor: not-allowed;
}

.mgkb-tile.locked-tile::before {
    content: '🔒';
    position: absolute;
    font-size: 0.5rem;
}

/* Powerups */
.mgkb-powerups-row {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

/* In-Game Ads Section */
.mgkb-ingame-ads {
    margin-top: 15px;
    padding: 12px 15px;
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.9), rgba(26, 10, 46, 0.95));
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 10px;
    max-width: 350px;
    width: 100%;
}

.mgkb-ingame-ads-title {
    font-size: 0.75rem;
    color: var(--mgkb-gold);
    text-align: center;
    margin-bottom: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.mgkb-ingame-ads-grid {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    justify-content: space-between !important;
    gap: 8px;
    width: 100%;
}

.mgkb-ingame-ad-item {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 1 1 0 !important;
    min-width: 0 !important;
    padding: 10px 5px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    text-decoration: none !important;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mgkb-ingame-ad-item:hover {
    background: rgba(212, 175, 55, 0.25);
    border-color: var(--mgkb-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.mgkb-ingame-ad-icon {
    font-size: 1.5rem;
    margin-bottom: 5px;
    display: block !important;
    text-align: center;
}

.mgkb-ingame-ad-name {
    font-size: 0.6rem;
    color: var(--mgkb-gold-light);
    text-align: center;
    line-height: 1.2;
    display: block !important;
    word-wrap: break-word;
    max-width: 100%;
}

@media (max-width: 320px) {
    .mgkb-ingame-ads-grid {
        flex-wrap: wrap !important;
    }
    
    .mgkb-ingame-ad-item {
        flex: 0 0 calc(50% - 4px) !important;
    }
}

.mgkb-powerup {
    width: 48px;
    height: 48px;
    border: 2px solid var(--mgkb-gold);
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.95), rgba(26, 10, 46, 0.98));
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.mgkb-powerup:hover:not(.disabled) {
    transform: scale(1.1);
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.5);
}

.mgkb-powerup.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.mgkb-powerup.active {
    background: var(--mgkb-gold);
    border-color: var(--mgkb-gold-light);
}

.mgkb-pu-icon {
    font-size: 1.2rem;
}

.mgkb-pu-count {
    position: absolute;
    bottom: -5px;
    right: -5px;
    width: 18px;
    height: 18px;
    background: var(--mgkb-gold);
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--mgkb-purple-deep);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Modals */
.mgkb-modal-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.mgkb-modal-overlay.active {
    display: flex;
}

.mgkb-modal-box {
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.98), rgba(26, 10, 46, 0.99));
    border: 3px solid var(--mgkb-gold);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    max-width: 350px;
    width: 100%;
    animation: mgkbModalIn 0.4s ease;
}

@keyframes mgkbModalIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.mgkb-modal-box h2 {
    font-size: 1.6rem;
    margin-bottom: 12px;
    margin-top: 0;
}

.mgkb-modal-box.win h2 {
    color: var(--mgkb-gold);
}

.mgkb-modal-box.lose h2 {
    color: var(--mgkb-fire);
}

.mgkb-modal-stars {
    font-size: 2rem;
    margin: 15px 0;
}

.mgkb-m-star {
    color: #444;
    transition: all 0.3s;
}

.mgkb-m-star.got {
    color: var(--mgkb-sun);
    animation: mgkbStarBounce 0.5s ease;
}

@keyframes mgkbStarBounce {
    0% { transform: scale(0); }
    60% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

.mgkb-modal-score {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.mgkb-modal-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.mgkb-modal-btn {
    padding: 10px 22px;
    font-size: 0.9rem;
    border: 2px solid var(--mgkb-gold);
    background: transparent;
    color: var(--mgkb-gold-light);
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 5px;
}

.mgkb-modal-btn:hover {
    background: rgba(212, 175, 55, 0.2);
}

.mgkb-modal-btn.primary {
    background: var(--mgkb-gold);
    color: var(--mgkb-purple-deep);
}

.mgkb-modal-btn.primary:hover {
    background: var(--mgkb-gold-light);
}

/* Info Modal */
.mgkb-modal-box.info {
    max-width: 400px;
    text-align: left;
}

.mgkb-modal-box.info h2 {
    text-align: center;
    color: var(--mgkb-gold);
    margin-bottom: 15px;
}

.mgkb-info-content {
    max-height: 50vh;
    overflow-y: auto;
    padding-right: 8px;
}

.mgkb-info-section {
    margin-bottom: 15px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.mgkb-info-section:last-child {
    border-bottom: none;
    margin-bottom: 8px;
}

.mgkb-info-section h3 {
    color: var(--mgkb-gold);
    font-size: 0.9rem;
    margin-bottom: 8px;
    margin-top: 0;
}

.mgkb-info-section p {
    margin: 6px 0;
    font-size: 0.85rem;
    line-height: 1.4;
    color: var(--mgkb-gold-light);
}

.mgkb-info-section strong {
    color: var(--mgkb-gold);
}

.mgkb-modal-box.info .mgkb-menu-btn {
    display: block;
    width: 100%;
    margin-top: 15px;
}

/* Story Overlay */
.mgkb-story-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 900;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.mgkb-story-overlay.active {
    display: flex;
}

.mgkb-story-box {
    background: linear-gradient(145deg, rgba(45, 27, 78, 0.98), rgba(26, 10, 46, 0.99));
    border: 2px solid var(--mgkb-gold);
    border-radius: 12px;
    padding: 30px;
    max-width: 450px;
    text-align: center;
}

.mgkb-story-chapter {
    color: var(--mgkb-gold);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.mgkb-story-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--mgkb-gold-light);
    margin-bottom: 20px;
}

/* Combo Popup */
.mgkb-combo-popup {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    font-weight: 700;
    color: var(--mgkb-gold);
    text-shadow: 0 0 25px var(--mgkb-gold), 0 0 50px var(--mgkb-gold);
    pointer-events: none;
    opacity: 0;
    z-index: 200;
}

.mgkb-combo-popup.show {
    animation: mgkbComboAnim 1s ease forwards;
}

@keyframes mgkbComboAnim {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
    20% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
    80% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    100% { transform: translate(-50%, -60%) scale(0.8); opacity: 0; }
}

/* Responsive */
@media (max-width: 400px) {
    .mgkb-tile {
        width: 34px;
        height: 34px;
        font-size: 1.1rem;
    }

    .mgkb-menu-container {
        padding: 30px 25px;
    }

    .mgkb-modal-box {
        padding: 25px 20px;
    }

    .mgkb-other-games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}