:root {
    --bg-dark: #0a0a0f;
    --bg-card: #151520;
    --bg-card-hover: #1c1c2b;
    --primary: #8a2be2;
    --primary-hover: #9d4edd;
    --secondary: #00d2ff;
    --accent: #ff0055;
    --text-main: #ffffff;
    --text-muted: #8b8b99;
    --border: rgba(255, 255, 255, 0.05);
    --glass-bg: rgba(20, 20, 30, 0.7);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography & Utils */
h1, h2, h3 { font-weight: 800; letter-spacing: -0.5px; }
a { text-decoration: none; color: inherit; }

/* Navbar */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i { color: var(--secondary); }
.logo span { color: var(--primary); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-weight: 600;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.balance-badge {
    background: rgba(0, 210, 255, 0.1);
    color: var(--secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 210, 255, 0.2);
    font-weight: 800;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.4);
}

.case-item.cat-diamond { border-bottom-color: #00ffff; box-shadow: 0 5px 25px rgba(0, 255, 255, 0.4); }
.case-item.cat-gold { border-bottom-color: #ffd700; box-shadow: 0 5px 15px rgba(255, 215, 0, 0.2); }
.case-item.cat-silver { border-bottom-color: #c0c0c0; }
.case-item.cat-bronze { border-bottom-color: #cd7f32; }

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
}

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

.btn-danger {
    background: rgba(255, 0, 85, 0.1);
    color: var(--accent);
    border: 1px solid rgba(255, 0, 85, 0.2);
}

.btn-danger:hover {
    background: var(--accent);
    color: white;
}

/* Layout */
.main-content {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    background: var(--bg-card);
}

/* Forms & Cards */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 1rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: white;
    font-family: inherit;
    transition: 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.2);
}

.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.alert-error {
    background: rgba(255, 0, 85, 0.1);
    color: #ff4d4d;
    border: 1px solid rgba(255, 0, 85, 0.2);
}

.alert-success {
    background: rgba(0, 255, 128, 0.1);
    color: #00ff80;
    border: 1px solid rgba(0, 255, 128, 0.2);
}