/* ========== Reset ========== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========== CSS Variables ========== */
:root {
    --sky-deep: #0a1628;
    --sky-mid: #1a2a4a;
    --sky-purple: #3d2a5c;
    --sky-warm: #5c3d5c;
    --horizon-pink: #8b5a6b;
    --horizon-orange: #c4785a;
    --horizon-gold: #d4a574;
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --meteor-blue: #4fc3f7;
    --meteor-core: #e0f7fa;
    --accent-blue: #4fc3f7;
}

/* ========== Body ========== */
body {
    font-family: 'Quicksand', sans-serif;
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
    background: var(--sky-deep);
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* ========== Custom Cursor ========== */
*, *::before, *::after {
    cursor: none !important;
}

.custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
}

.custom-cursor::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    background: radial-gradient(circle, rgba(255,255,255,0.95) 0%, rgba(79,195,247,0.7) 60%, transparent 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 8px rgba(79, 195, 247, 0.5);
    animation: cursorTwinkle 2s ease-in-out infinite;
}

.custom-cursor::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    border: 1px solid rgba(79, 195, 247, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.15s ease, height 0.15s ease, border-color 0.15s ease, background 0.15s ease;
    animation: cursorPulse 2.5s ease-in-out infinite;
}

@keyframes cursorTwinkle {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 8px rgba(79, 195, 247, 0.5);
    }
    50% {
        opacity: 0.6;
        box-shadow: 0 0 15px rgba(79, 195, 247, 0.8);
    }
}

@keyframes cursorPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

.custom-cursor.clicking::after {
    width: 18px;
    height: 18px;
    border-color: rgba(79, 195, 247, 0.9);
    background: rgba(79, 195, 247, 0.1);
    animation: none;
}

.custom-cursor.clicking::before {
    box-shadow: 0 0 12px rgba(79, 195, 247, 0.9);
    animation: none;
}

.custom-cursor.hovering::after {
    width: 36px;
    height: 36px;
    border-color: rgba(79, 195, 247, 0.6);
    background: rgba(79, 195, 247, 0.05);
}

@media (hover: none) and (pointer: coarse) {
    *, *::before, *::after {
        cursor: auto !important;
    }
    .custom-cursor {
        display: none !important;
    }
}

/* ========== WebGL Background ========== */
#sky-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

#sky-container canvas {
    display: block;
}

/* ========== Gradient Overlays ========== */
.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        transparent 40%,
        rgba(93, 63, 106, 0.1) 60%,
        rgba(139, 90, 107, 0.15) 75%,
        rgba(196, 120, 90, 0.1) 90%,
        rgba(212, 165, 116, 0.08) 100%
    );
    z-index: 1;
    pointer-events: none;
}

.horizon-glow {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: radial-gradient(
        ellipse 150% 60% at 50% 100%,
        rgba(212, 165, 116, 0.12) 0%,
        rgba(196, 120, 90, 0.08) 30%,
        rgba(139, 90, 107, 0.05) 60%,
        transparent 100%
    );
    z-index: 1;
    pointer-events: none;
}

/* ========== Back Button ========== */
.back-button {
    position: fixed;
    top: 30px;
    left: 30px;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    z-index: 101;
}

.back-button:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .back-button {
        top: 20px;
        left: 20px;
        padding: 10px 18px;
        font-size: 12px;
    }
}