:root {
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary: #6366f1;
    --success: #10b981;
    --danger: #ef4444;
    --text: #f8fafc;
    --text-muted: #94a3b8;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: "Outfit", sans-serif;
}

body {
    background: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(circle at top left, #1e1b4b, transparent 40%),
        radial-gradient(circle at bottom right, #312e81, transparent 40%);
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

.btn-logout {
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

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

.content {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.alert-success {
    background: rgba(16, 185, 129, 0.2);
    color: #d1fae5;
    border: 1px solid var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.2);
    color: #fee2e2;
    border: 1px solid var(--danger);
}

/* Forms & Cards */
.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

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

input,
select {
    width: 100%;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

input:focus {
    border-color: var(--primary);
}

button.btn-primary {
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition:
        transform 0.2s,
        box-shadow 0.2s;
    width: 100%;
}

button.btn-primary:active {
    transform: scale(0.98);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th,
td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

th {
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.5px;
}

tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* 30 Box Grid */
.box-grid {
    display: grid;
    grid-template-columns: repeat(15, 1fr); /* 2 rows x 15 columns = 30 */
    gap: 4px;
    margin-top: 0.5rem;
}

@media (max-width: 600px) {
    .box-grid {
        grid-template-columns: repeat(10, 1fr); /* 3 rows x 10 */
    }
}

.box {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
}

.box.plus {
    background: var(--success);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.box.minus {
    background: var(--danger);
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}
.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: #d1fae5;
}
.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}