/* Memory Garden — Game Styles */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(160deg, #2d2d4e 0%, #1e3a4a 50%, #2a2a3e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
}

.hidden { display: none !important; }

/* Page Layout */
.page-layout {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    width: 100%;
    max-width: 800px;
    position: relative;
}

/* Container */
.game-container {
    max-width: 480px;
    width: 100%;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

/* Side Panel — How to Play */
.side-panel {
    display: flex;
    align-items: flex-start;
    flex-shrink: 0;
    margin-top: 72px;
}

.side-panel-tab {
    background: #2a2a4a;
    border: 1px solid #3a3a5a;
    border-right: none;
    border-radius: 8px 0 0 8px;
    padding: 12px 6px;
    cursor: pointer;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    color: #4ecca3;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: background 0.2s, border-color 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.side-panel-tab:hover {
    background: #333360;
    border-color: #4ecca3;
}

.side-panel-tab .tab-icon {
    display: inline-block;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.side-panel-body {
    width: 220px;
    background: #2a2a4a;
    border: 1px solid #3a3a5a;
    border-radius: 0 8px 8px 0;
    padding: 18px 16px;
    overflow: hidden;
    transition: width 0.3s ease, padding 0.3s ease, opacity 0.3s ease, border-width 0.3s ease;
    opacity: 1;
}

.side-panel.collapsed .side-panel-body {
    width: 0;
    padding: 0;
    opacity: 0;
    border-width: 0;
}

.side-panel-body h3 {
    color: #4ecca3;
    font-size: 0.95rem;
    margin-bottom: 14px;
    white-space: nowrap;
}

.side-panel-body ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

.side-panel-body li {
    display: flex;
    gap: 10px;
    margin-bottom: 14px;
    align-items: flex-start;
}

.side-panel-body .sp-num {
    width: 22px;
    height: 22px;
    background: #4ecca3;
    color: #1a1a2e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.7rem;
    flex-shrink: 0;
}

.side-panel-body .sp-text {
    font-size: 0.8rem;
    color: #ccc;
    line-height: 1.4;
    min-width: 0;
}

.side-panel-body .sp-text strong {
    color: #4ecca3;
}

.side-panel-body .sp-divider {
    border: none;
    border-top: 1px solid #3a3a5a;
    margin: 10px 0;
}

.side-panel-body .sp-tip {
    font-size: 0.75rem;
    color: #888;
    line-height: 1.4;
    white-space: normal;
}

/* Header */
.game-header {
    text-align: center;
}

.game-header h1 {
    font-size: 1.8rem;
    color: #4ecca3;
    margin-bottom: 4px;
}

.tagline {
    font-size: 0.9rem;
    color: #888;
}

/* Garden Progress */
.garden-section {
    width: 100%;
    text-align: center;
}

.garden-label {
    font-size: 0.85rem;
    color: #aaa;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.garden-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    max-width: 240px;
    margin: 0 auto 8px;
}

.garden-square {
    aspect-ratio: 1;
    background: #2a2a4a;
    border-radius: 4px;
    transition: background 0.4s ease, transform 0.3s ease;
}

.garden-square.filled {
    background: #4ecca3;
    box-shadow: 0 0 8px rgba(78, 204, 163, 0.4);
}

.garden-square.just-filled {
    animation: gardenPop 0.5s ease;
}

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

.garden-stats {
    font-size: 0.8rem;
    color: #888;
}

/* Cooldown */
.cooldown-section {
    text-align: center;
    padding: 20px;
}

.cooldown-label {
    font-size: 0.9rem;
    color: #aaa;
    margin-bottom: 8px;
}

.cooldown-timer {
    font-size: 2rem;
    font-family: 'Courier New', monospace;
    color: #e74c3c;
    font-weight: bold;
}

/* Target Prompt */
.target-prompt {
    text-align: center;
}

.target-prompt p {
    font-size: 1rem;
    color: #ccc;
    margin-bottom: 8px;
}

.target-tile-wrapper {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    border: 3px solid #4ecca3;
    box-shadow: 0 0 16px rgba(78, 204, 163, 0.5);
}

.target-tile-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Reveal Countdown */
.reveal-countdown {
    text-align: center;
    animation: fadeIn 0.15s ease;
}

.reveal-countdown .rc-label {
    font-size: 1rem;
    font-weight: bold;
    color: #4ecca3;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.reveal-countdown .rc-timer {
    font-family: 'Courier New', monospace;
    font-size: 1.6rem;
    font-weight: bold;
    color: #e0e0e0;
    margin-top: 2px;
    transition: color 0.2s;
}

.reveal-countdown .rc-timer.urgent {
    color: #e74c3c;
}

/* Game Board */
.board-wrapper {
    width: 100%;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

/* Tile with 3D flip */
.tile {
    aspect-ratio: 1;
    perspective: 600px;
    cursor: pointer;
}

.tile-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

.tile.flipped .tile-inner {
    transform: rotateY(180deg);
}

.tile-face, .tile-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 8px;
    overflow: hidden;
}

.tile-face {
    transform: rotateY(0deg);
}

.tile-face img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tile-back {
    transform: rotateY(180deg);
    background: linear-gradient(135deg, #2a2a4a, #3a3a5a);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tile-back::after {
    content: '?';
    font-size: 1.8rem;
    color: #4ecca3;
    opacity: 0.5;
}

.tile.selectable {
    cursor: pointer;
}

.tile.selectable:hover .tile-inner {
    transform: rotateY(180deg) scale(1.05);
    box-shadow: 0 0 12px rgba(78, 204, 163, 0.4);
}

.tile.selected .tile-inner {
    box-shadow: 0 0 16px rgba(78, 204, 163, 0.8);
}

.tile.correct-reveal .tile-face {
    border: 3px solid #4ecca3;
}

.tile.wrong-reveal .tile-face {
    border: 3px solid #e74c3c;
}

.tile:not(.selectable) {
    cursor: default;
    pointer-events: none;
}

/* Result Overlay */
.result-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    animation: fadeIn 0.3s ease;
}

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

.result-content {
    text-align: center;
    padding: 32px;
    max-width: 360px;
    width: 90%;
}

.result-message {
    font-size: 1.6rem;
    font-weight: bold;
    margin-bottom: 20px;
}

.result-message.win { color: #4ecca3; }
.result-message.loss { color: #e74c3c; }

/* Reward Roller */
.reward-roller {
    margin: 20px auto;
}

.roller-window {
    width: 120px;
    height: 60px;
    margin: 0 auto;
    overflow: hidden;
    border: 2px solid #4ecca3;
    border-radius: 8px;
    position: relative;
    background: #2a2a4a;
}

.roller-strip {
    display: flex;
    flex-direction: column;
    position: absolute;
    width: 100%;
    transition-timing-function: cubic-bezier(0.25, 0.1, 0.25, 1);
}

.roller-item {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #4ecca3;
    flex-shrink: 0;
}

.reward-final {
    margin-top: 12px;
    font-size: 1.1rem;
    color: #ccc;
    min-height: 1.4em;
}

/* Coupon Display */
.coupon-display {
    margin-top: 16px;
    animation: fadeIn 0.5s ease;
}

.coupon-label {
    font-size: 0.9rem;
    color: #aaa;
    margin-bottom: 8px;
}

.coupon-code {
    font-family: 'Courier New', monospace;
    font-size: 1.4rem;
    font-weight: bold;
    color: #4ecca3;
    background: #2a2a4a;
    padding: 12px 24px;
    border-radius: 8px;
    border: 2px dashed #4ecca3;
    display: inline-block;
    letter-spacing: 2px;
    user-select: all;
}

.coupon-pct {
    font-size: 0.85rem;
    color: #888;
    margin-top: 8px;
}

/* Garden Complete */
.garden-complete {
    margin-top: 16px;
    animation: gardenCompleteAnim 1s ease;
}

.garden-complete p {
    font-size: 1.3rem;
    color: #4ecca3;
    font-weight: bold;
    text-shadow: 0 0 20px rgba(78, 204, 163, 0.6);
}

@keyframes gardenCompleteAnim {
    0% { transform: scale(0.5); opacity: 0; }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

/* Buttons */
.btn-play {
    background: #4ecca3;
    color: #1a1a2e;
    border: none;
    padding: 14px 48px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.btn-play:hover { background: #3dbb92; }
.btn-play:active { transform: scale(0.97); }

.btn-dismiss {
    background: transparent;
    color: #4ecca3;
    border: 1px solid #4ecca3;
    padding: 10px 32px;
    font-size: 0.95rem;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 20px;
    transition: background 0.2s;
}

.btn-dismiss:hover {
    background: rgba(78, 204, 163, 0.1);
}

/* Premium Placeholder */
.premium-placeholder {
    font-size: 0.8rem;
    color: #666;
    padding: 12px 20px;
    border: 1px dashed #444;
    border-radius: 8px;
    text-align: center;
    width: 100%;
}

.lock-icon {
    font-size: 0.9rem;
}

/* Loading Spinner */
.loading-spinner {
    text-align: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #2a2a4a;
    border-top-color: #4ecca3;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Dev Panel */
.dev-panel {
    width: 100%;
    margin-top: 20px;
    border: 1px solid #444;
    border-radius: 8px;
    padding: 12px;
    font-size: 0.8rem;
}

.dev-panel summary {
    cursor: pointer;
    color: #e74c3c;
    font-weight: bold;
    margin-bottom: 8px;
}

.dev-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.dev-buttons button {
    background: #333;
    color: #ccc;
    border: 1px solid #555;
    padding: 6px 10px;
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
}

.dev-buttons button:hover {
    background: #444;
}

.dev-output {
    background: #111;
    color: #4ecca3;
    padding: 8px;
    border-radius: 4px;
    max-height: 200px;
    overflow-y: auto;
    white-space: pre-wrap;
    font-size: 0.7rem;
}

/* Teaser Roller */
.teaser-section {
    text-align: center;
    margin-bottom: -8px;
}

.teaser-label {
    font-size: 0.8rem;
    color: #aaa;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.teaser-window {
    width: 100px;
    height: 32px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid #4ecca3;
    border-radius: 6px;
    position: relative;
    background: #2a2a4a;
}

.teaser-strip {
    display: flex;
    flex-direction: column;
    animation: teaserScroll 3s linear infinite;
}

.teaser-item {
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: bold;
    color: #4ecca3;
    flex-shrink: 0;
}

@keyframes teaserScroll {
    0%   { transform: translateY(0); }
    25%  { transform: translateY(0); }
    33%  { transform: translateY(-32px); }
    58%  { transform: translateY(-32px); }
    66%  { transform: translateY(-64px); }
    91%  { transform: translateY(-64px); }
    100% { transform: translateY(-96px); }
}

/* How to Play Button */
.btn-how-to-play {
    background: transparent;
    color: #888;
    border: 1px solid #555;
    padding: 4px 14px;
    font-size: 0.75rem;
    border-radius: 12px;
    cursor: pointer;
    margin-top: 6px;
    transition: color 0.2s, border-color 0.2s;
}

.btn-how-to-play:hover {
    color: #4ecca3;
    border-color: #4ecca3;
}

/* Instructions Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: #2a2a4a;
    border: 1px solid #4ecca3;
    border-radius: 12px;
    padding: 28px 24px;
    max-width: 360px;
    width: 90%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 14px;
    background: none;
    border: none;
    color: #888;
    font-size: 1.4rem;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: #e0e0e0;
}

.modal-content h2 {
    color: #4ecca3;
    font-size: 1.2rem;
    margin-bottom: 16px;
    text-align: center;
}

.modal-steps {
    list-style: none;
    padding: 0;
}

.modal-steps li {
    display: flex;
    gap: 12px;
    margin-bottom: 14px;
    align-items: flex-start;
}

.step-num {
    width: 28px;
    height: 28px;
    background: #4ecca3;
    color: #1a1a2e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.step-text strong {
    color: #4ecca3;
}

.step-text {
    font-size: 0.9rem;
    color: #ccc;
    line-height: 1.4;
}

.modal-footer {
    text-align: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #3a3a5a;
}

.modal-footer a {
    color: #888;
    font-size: 0.8rem;
    cursor: pointer;
    text-decoration: underline;
}

.modal-footer a:hover {
    color: #4ecca3;
}

/* Walkthrough */
.walkthrough-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
}

.walkthrough-card {
    position: fixed;
    z-index: 160;
    background: #2d2d4e;
    border: 1px solid #4ecca3;
    border-radius: 10px;
    padding: 18px 20px;
    max-width: 300px;
    width: 85%;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.25s ease;
}

.wt-close {
    position: absolute;
    top: 6px;
    right: 10px;
    background: none;
    border: none;
    color: #666;
    font-size: 1.1rem;
    cursor: pointer;
    line-height: 1;
    padding: 2px 4px;
}

.wt-close:hover {
    color: #e0e0e0;
}

.walkthrough-card.center {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.walkthrough-card.above-play {
    left: 50%;
    transform: translateX(-50%);
}

.walkthrough-card.top-area {
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
}

.walkthrough-card h3 {
    color: #4ecca3;
    font-size: 1rem;
    margin-bottom: 8px;
}

.walkthrough-card p {
    font-size: 0.85rem;
    color: #ccc;
    line-height: 1.4;
    margin-bottom: 14px;
}

.walkthrough-card .wt-arrow {
    text-align: center;
    font-size: 1.4rem;
    color: #4ecca3;
    margin-bottom: 8px;
}

.walkthrough-btns {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.wt-btn {
    padding: 6px 16px;
    font-size: 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    font-weight: 600;
}

.wt-btn.primary {
    background: #4ecca3;
    color: #1a1a2e;
}

.wt-btn.primary:hover {
    background: #3dbb92;
}

.wt-btn.secondary {
    background: transparent;
    color: #888;
    border: 1px solid #555;
}

.wt-btn.secondary:hover {
    color: #ccc;
    border-color: #888;
}

/* Dev Docs */
.dev-docs {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid #333;
}

.dev-docs h4 {
    color: #e74c3c;
    font-size: 0.75rem;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dev-docs dl {
    font-size: 0.7rem;
    line-height: 1.5;
}

.dev-docs dt {
    color: #ccc;
    font-weight: bold;
    margin-top: 4px;
}

.dev-docs dd {
    color: #888;
    margin-left: 12px;
    margin-bottom: 2px;
}

.dev-continuous {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #333;
}

.dev-continuous label {
    color: #ccc;
    font-size: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
}

.dev-continuous input[type="checkbox"] {
    accent-color: #4ecca3;
}

/* Responsive */

/* Side panel overlay on narrow screens */
@media (max-width: 720px) {
    .page-layout {
        position: relative;
    }

    .side-panel {
        position: absolute;
        right: 0;
        top: 0;
        z-index: 50;
    }

    .side-panel-body {
        box-shadow: -4px 4px 20px rgba(0, 0, 0, 0.5);
    }
}

@media (max-width: 400px) {
    .game-container {
        padding: 12px 8px;
        gap: 14px;
    }

    .game-header h1 {
        font-size: 1.4rem;
    }

    .game-board {
        gap: 6px;
    }

    .target-tile-wrapper {
        width: 80px;
        height: 80px;
    }

    .coupon-code {
        font-size: 1.1rem;
        padding: 8px 16px;
    }

    .side-panel {
        margin-top: 48px;
    }

    .side-panel-body {
        width: 200px;
    }

    .side-panel.collapsed .side-panel-body {
        width: 0;
    }
}