:root {
    --bg-color: #0c0e14;
    --accent-color: #3b82f6;
    --text-color: #e2e8f0;
    --error-color: #ef4444;
    --success-color: #10b981;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hidden {
    display: none !important;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Login Screen */
#login-screen {
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #1e293b 0%, #0c0e14 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

h1 {
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #3b82f6, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-card p {
    color: #94a3b8;
    margin-bottom: 2rem;
}

input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 1rem;
    color: white;
    margin-bottom: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
}

button {
    width: 100%;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, background 0.3s;
}

button:hover {
    background: #2563eb;
}

button:active {
    transform: scale(0.98);
}

button.secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
}

.error {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* Admin Screen */
header {
    background: rgba(12, 14, 20, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.brand {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-color);
}

.sub-text {
    font-size: 0.8rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#logout-btn {
    width: auto;
    padding: 0.5rem 1.5rem;
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

#add-key-btn {
    width: auto;
    padding: 0.75rem 2rem;
}

.table-container {
    padding: 0;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1.25rem 2rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

th {
    color: #94a3b8;
    font-weight: 400;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.key-badge {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-family: monospace;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.status {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-active .dot { background: var(--success-color); box-shadow: 0 0 10px var(--success-color); }
.status-pending .dot { background: #eab308; }

.delete-btn {
    background: transparent;
    color: #4b5563;
    width: auto;
    padding: 0.5rem;
}

.delete-btn:hover {
    color: var(--error-color);
    background: transparent;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    width: 90%;
    max-width: 400px;
}

.modal-content h3 {
    margin-bottom: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Mobile Adaptation */
@media (max-width: 768px) {
    main { padding: 1rem; }
    .action-bar { flex-direction: column; gap: 1rem; align-items: flex-start; }
    #add-key-btn { width: 100%; }
    th, td { padding: 1rem; }
    .brand .sub-text { display: none; }
}