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

body {
    background: #0a0a0a;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    overflow: hidden;
    position: relative;
}

#gameCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: none; /* Hide default cursor */
}

#ui-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#instructions {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background: rgba(0, 0, 0, 0.9);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid #222;
    backdrop-filter: blur(20px);
    pointer-events: all;
    max-width: 400px;
}

#instructions h2 {
    font-size: 32px;
    font-weight: 200;
    margin-bottom: 20px;
    letter-spacing: 2px;
    background: linear-gradient(45deg, #4a9eff, #ff4a4a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#instructions p {
    margin: 10px 0;
    color: #999;
    font-size: 14px;
    line-height: 1.6;
}

#start-btn {
    margin-top: 30px;
    padding: 12px 30px;
    background: linear-gradient(45deg, #4a9eff, #3a7ed8);
    border: none;
    border-radius: 25px;
    color: white;
    font-size: 16px;
    font-weight: 300;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
}

#start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 158, 255, 0.4);
}

#start-btn:active {
    transform: translateY(0);
}

/* Restart Button */
#restart-button {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: all;
    z-index: 1000;
}

#restart-btn {
    padding: 20px 40px;
    background: linear-gradient(to bottom, rgba(74, 158, 255, 0.25) 0%, rgba(74, 158, 255, 0.15) 100%);
    border: 2px solid rgba(74, 158, 255, 0.5);
    border-radius: 12px;
    color: #4a9eff;
    font-size: 24px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 32px rgba(74, 158, 255, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

#restart-btn:hover {
    background: linear-gradient(to bottom, rgba(74, 158, 255, 0.35) 0%, rgba(74, 158, 255, 0.25) 100%);
    border-color: rgba(74, 158, 255, 0.7);
    box-shadow: 0 12px 40px rgba(74, 158, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

#restart-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(74, 158, 255, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.hidden {
    display: none !important;
}

/* Ability UI - League of Legends Style */
#ability-ui {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: all;
}

.ability-container {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.85) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 12px 16px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

/* Timer Bar */
#timer-bar-container {
    position: relative;
    width: calc((64px + 8px) * 7 - 8px);
    height: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 5px;
    overflow: visible;
    pointer-events: none;
}

#timer-bar-fill {
    position: relative;
    height: 100%;
    width: 0%;
    background: #ff4a4a;
    border-radius: 5px;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(255, 74, 74, 0.5), 0 0 20px rgba(255, 74, 74, 0.3);
    overflow: hidden;
}

.timer-tick {
    position: absolute;
    top: 0;
    width: 2px;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    pointer-events: none;
    z-index: 1;
}

.ability-slots {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
}

.ability-slot {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: 6px;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.9) 0%, rgba(13, 13, 13, 0.9) 100%);
    border: 2px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    cursor: default;
    flex-shrink: 0;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
}

.ability-slot::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 4px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.ability-slot.active {
    border-color: rgba(255, 74, 74, 0.6);
    box-shadow: 0 0 16px rgba(255, 74, 74, 0.4), inset 0 1px 2px rgba(0, 0, 0, 0.5);
    background: linear-gradient(135deg, rgba(255, 74, 74, 0.15) 0%, rgba(13, 13, 13, 0.9) 100%);
}

.ability-slot.active::before {
    opacity: 1;
}

.ability-slot.cooldown {
    border-color: rgba(255, 255, 255, 0.08);
    background: linear-gradient(135deg, rgba(13, 13, 13, 0.95) 0%, rgba(0, 0, 0, 0.95) 100%);
}

.ability-slot.locked {
    border-color: rgba(20, 20, 20, 0.8);
    background: linear-gradient(135deg, rgba(13, 13, 13, 0.95) 0%, rgba(0, 0, 0, 0.95) 100%);
    cursor: not-allowed;
    opacity: 0.4;
}

.ability-slot.locked:hover {
    opacity: 0.5;
}

.ability-keybind {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0;
    z-index: 4;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.ability-slot.locked .ability-keybind {
    opacity: 0.5;
    border-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.ability-icon {
    font-size: 32px;
    color: #ff4a4a;
    transition: all 0.2s ease;
    z-index: 2;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

.ability-slot.cooldown .ability-icon {
    filter: brightness(0.3) grayscale(0.5);
}

.ability-slot.locked .ability-icon {
    color: #333;
    filter: grayscale(100%) brightness(0.3);
}

.cooldown-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    background: conic-gradient(from 0deg, rgba(0, 0, 0, 0.9) var(--progress), transparent var(--progress));
    transition: all 0.1s ease;
    z-index: 1;
}

.lock-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.95) 100%);
    z-index: 1;
}

.cooldown-timer {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 1), 0 0 8px rgba(0, 0, 0, 0.8);
    z-index: 3;
    letter-spacing: 0;
}