@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;800&display=swap');

:root {
    --bg-color: #0b0f19;
    --primary: #4318FF;
    --primary-glow: rgba(67, 24, 255, 0.4);
    --secondary: #00E4FF;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #ffffff;
    --text-muted: #8b949e;
    --success: #00ff88;
    --success-glow: rgba(0, 255, 136, 0.4);
    --danger: #ff3366;
    --warning: #ffb800;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', system-ui, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(67, 24, 255, 0.15), transparent 35%),
        radial-gradient(circle at 90% 80%, rgba(0, 228, 255, 0.1), transparent 35%);
    background-attachment: fixed;
    align-items: center;
    justify-content: center;
}

body.dashboard {
    display: block;
    align-items: stretch;
    justify-content: flex-start;
}

.container-center {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.logo-text {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1.2rem;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    background: rgba(0,0,0,0.5);
}

.btn {
    width: 100%;
    padding: 0.85rem 1.5rem;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--primary-glow);
}

.btn.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
}
.btn.btn-outline:hover {
    background: var(--glass-bg);
    border-color: var(--text-main);
    box-shadow: none;
}

.alert {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}
.alert-danger {
    background: rgba(255, 51, 102, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}
.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

/* Dashboard specific */
.navbar {
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
}
.navbar .brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    text-decoration: none;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}
.table th, .table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}
.table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-paid {
    background: rgba(0, 255, 136, 0.15);
    color: var(--success);
    border: 1px solid rgba(0, 255, 136, 0.3);
}
.badge-unpaid {
    background: rgba(255, 184, 0, 0.15);
    color: var(--warning);
    border: 1px solid rgba(255, 184, 0, 0.3);
}

.action-link {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
    margin-right: 0.75rem;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.action-link:hover {
    color: white;
}
.action-link.danger {
    color: var(--danger);
}

/* Header actions layout */
.header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* Modal simplified */
.modal {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    margin: 0 auto;
    backdrop-filter: blur(20px);
}