/* --- Core Variables & Theming --- */
:root {
    --bg-main: #060913;
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px);
    --cyan-glow: #38bdf8;
    --purple-glow: #a855f7;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --danger: #ef4444;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    /* Ambient Aurora Glow */
    background-image: 
        radial-gradient(circle at 15% 30%, rgba(56, 189, 248, 0.07), transparent 40%),
        radial-gradient(circle at 85% 70%, rgba(168, 85, 247, 0.07), transparent 40%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* --- Glassmorphism Framework --- */
.glass-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.glass-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 1rem;
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.2s;
}

.glass-input:focus { border-color: var(--cyan-glow); }

.glass-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.glass-btn:hover { background: rgba(255, 255, 255, 0.1); }

.glass-btn.primary {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--cyan-glow);
    color: var(--cyan-glow);
}

.glass-btn.primary:hover {
    background: var(--cyan-glow);
    color: var(--bg-main);
}

.glass-btn.danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

/* --- Layouts & Grids --- */
.hidden { display: none !important; }

main { padding: 2rem; max-width: 1600px; margin: 0 auto; }

.brand-logo { margin: 0; color: var(--cyan-glow); cursor: pointer; }

.nav-links { display: flex; gap: 1rem; align-items: center; }

.nav-btn {
    background: transparent; border: none; color: var(--text-secondary);
    font-size: 1rem; cursor: pointer; padding: 0.5rem 1rem; transition: 0.2s;
}
.nav-btn:hover, .nav-btn.active { color: var(--text-primary); border-bottom: 2px solid var(--cyan-glow); }

.grid-layout {
    display: grid; gap: 2rem;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* --- Specific Modules --- */
.academy-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
}

.ide-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    height: calc(100vh - 150px);
}

.ide-wrapper textarea {
    width: 100%; height: 25%; background: rgba(0,0,0,0.4);
    border: 1px solid var(--glass-border); color: #a6e22e;
    font-family: monospace; padding: 1rem; border-radius: 8px;
    margin-bottom: 1rem; box-sizing: border-box; resize: none;
}

#ide-sandbox-preview {
    width: 100%; height: 100%; border: none;
    border-radius: 8px; background: #fff;
}

.admin-dashboard { display: grid; gap: 2rem; grid-template-columns: 2fr 1fr; }

#game-viewer {
    position: fixed; inset: 0; background: var(--bg-main); z-index: 999;
}
#game-iframe { width: 100%; height: 100%; border: none; }
#close-game { position: absolute; top: 1.5rem; left: 1.5rem; z-index: 1000; }

.glass-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px); z-index: 1000;
    display: flex; align-items: center; justify-content: center;
}
.modal-content { width: 400px; text-align: center; }

.creator-hub-layout { display: grid; grid-template-columns: 280px 1fr; gap: 2rem; height: 100%; }