:root {
    --primary: #4CAF50;
    --primary-dark: #2E7D32;
    --accent: #FFC107;
    --bg-gradient: linear-gradient(135deg, #a8e063 0%, #56ab2f 100%);
    --glass: rgba(255, 255, 255, 0.2);
    --glass-border: rgba(255, 255, 255, 0.4);
    --text-color: #ffffff;
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    font-family: 'Outfit', sans-serif;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #222;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    display: flex;
    flex-direction: column;
}

/* HUD Styling */
#hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    z-index: 100;
    pointer-events: none;
}

.hud-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.resource-pill, .level-pill {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 6px 12px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow);
    color: var(--text-color);
    font-weight: 800;
    pointer-events: auto;
    font-size: 14px;
}


.icon {
    width: 24px;
    height: 24px;
    margin-right: 8px;
    object-fit: contain;
}

.xp-bar-container {
    width: clamp(60px, 15vw, 120px);
    height: 8px;
    background: rgba(0,0,0,0.2);
    border-radius: 5px;
    margin-right: 10px;
    overflow: hidden;
}


#xp-fill {
    height: 100%;
    width: 40%;
    background: var(--accent);
    border-radius: 5px;
    transition: width 0.3s ease;
}

.hud-side {
    position: absolute;
    right: 20px;
    top: 80px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.side-btn {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    font-size: 24px;
    pointer-events: auto;
    transition: transform 0.2s;
}

.side-btn:active {
    transform: scale(0.9);
}

/* Canvas Styling */
canvas {
    width: 100%;
    height: 100%;
    touch-action: none;
    cursor: grab;
}

canvas:active {
    cursor: grabbing;
}

/* Bottom UI Bar */
#bottom-ui {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 500px;
    z-index: 100;
}

.action-bar {
    background: var(--glass);
    backdrop-filter: blur(15px);
    border: 2px solid var(--glass-border);
    padding: 8px;
    border-radius: 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    box-shadow: var(--shadow);
}


.action-btn {
    background: white;
    border-radius: 16px;
    border: none;
    padding: 10px 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.action-btn .btn-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.action-btn span {
    font-size: 10px;
    font-weight: 800;
    color: #444;
}

.action-btn:active {
    transform: scale(0.95) translateY(2px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Modal Styling */
#modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s;
}

.modal {
    background: white;
    width: 90%;
    max-width: 400px;
    border-radius: 32px;
    overflow: hidden;
    animation: slideUp 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-header {
    background: var(--primary);
    padding: 20px;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-content {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.hidden {
    display: none !important;
    opacity: 0;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Tutorial Screen */
#tutorial-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
}

.tutorial-card {
    padding: 40px;
}

.tutorial-card h1 {
    font-size: 42px;
    line-height: 1;
    margin-bottom: 20px;
}

.tutorial-card h1 span {
    color: var(--accent);
}

.tutorial-steps {
    margin: 40px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step {
    display: flex;
    align-items: center;
    background: var(--glass);
    padding: 15px;
    border-radius: 20px;
    text-align: left;
}

.step-num {
    width: 30px;
    height: 30px;
    background: var(--accent);
    color: #444;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 800;
    margin-right: 15px;
}

#start-game-btn {
    background: var(--accent);
    color: #444;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 20px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    transition: transform 0.2s;
}

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

/* Shop Items */
.shop-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 16px;
    margin-bottom: 10px;
}

.item-info {
    text-align: left;
}

.item-stats {
    font-size: 12px;
    color: #666;
}

.buy-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 50px;
    font-weight: 800;
    cursor: pointer;
}

.buy-btn:disabled {
    background: #ccc;
}

/* Notifications */
.notification {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 10px 20px;
    border-radius: 10px;
    z-index: 3000;
    animation: fadeInOut 2s forwards;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translate(-50%, -20px); }
    20% { opacity: 1; transform: translate(-50%, 0); }
    80% { opacity: 1; transform: translate(-50%, 0); }
    100% { opacity: 0; transform: translate(-50%, -20px); }
}

/* Floating Text */
.floating-text {
    position: fixed;
    pointer-events: none;
    font-weight: 800;
    font-size: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    z-index: 500;
    animation: floatUp 1s ease-out forwards;
}

@keyframes floatUp {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-50px); }
}

/* Mission UI */
.mission-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 16px;
    margin-bottom: 12px;
    text-align: left;
}

.mission-item p {
    font-size: 14px;
    color: #333;
    font-weight: 600;
    margin-bottom: 8px;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: #eee;
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar .fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.5s ease-out;
}

/* Modal Enhancements */
.primary-btn {
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    padding: 15px;
    border-radius: 12px;
    font-weight: 800;
    font-size: 16px;
    cursor: pointer;
    margin-top: 15px;
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.stats-box {
    background: #f0f4f0;
    padding: 15px;
    border-radius: 12px;
    margin: 10px 0;
    font-weight: 600;
    color: var(--primary-dark);
}

/* Celebration Screen */
.celebrate {
    text-align: center;
    padding: 40px 20px;
}

.celebrate-icon {
    font-size: 64px;
    margin-bottom: 20px;
    animation: bounce 1s infinite;
}

.reward {
    color: var(--accent);
    font-size: 24px;
    font-weight: 800;
    margin: 20px 0;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0) scale(1.1); }
    50% { transform: translateY(-20px) scale(1); }
}

.security-warning {
    background: #fff3cd;
    color: #856404;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 15px;
    font-size: 11px;
    font-weight: 700;
}