:root {
    --bg-color: #0f172a; 
    --card-bg: #1e293b;
    --primary-purple: #8b8cf7;
    --text-white: #ffffff;
    --text-dim: #94a3b8;
    --error-red: #ef4444;
}

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-color);
    font-family: 'Inter', sans-serif;
    color: var(--text-white);
    overflow-x: hidden;
}

.admin-card {
    background: var(--card-bg);
    padding: 60px 40px; 
    border-radius: 24px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    animation: fadeIn 0.5s ease-out;
    margin: 20px; /* Ensures it doesn't touch screen edges on mobile */
}

.admin-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px; 
    margin-bottom: 50px; 
}

.admin-logo {
    font-weight: 800;
    font-size: 1.4rem;
    background: linear-gradient(to right, #ffffff, #8b8cf7);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.badge {
    background: rgba(139, 140, 247, 0.1);
    color: var(--primary-purple);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    border: 1px solid rgba(139, 140, 247, 0.2);
}

h1 {
    font-size: 2.2rem; 
    margin: 0 0 18px 0;
    font-weight: 800;
    letter-spacing: -1px;
}

.subtitle {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 50px; 
    padding: 0 10px; 
}

.error-box {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-red);
    padding: 16px;
    border-radius: 14px;
    font-size: 0.85rem;
    margin-bottom: 35px; 
    border: 1px solid rgba(239, 68, 68, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.input-group {
    margin-bottom: 40px; 
    text-align: left;
}

.input-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-dim);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

input[type="password"] {
    width: 100%;
    padding: 18px;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.05);
    background: rgba(15, 23, 42, 0.8);
    color: white;
    font-size: 1rem;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

input[type="password"]:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 15px rgba(139, 140, 247, 0.15);
}

.primary-btn {
    width: 100%;
    background: var(--primary-purple);
    color: white;
    border: none;
    padding: 20px; 
    border-radius: 16px; 
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.primary-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(139, 140, 247, 0.3);
}

.admin-footer {
    margin-top: 45px; 
}

.admin-footer a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.admin-footer a:hover {
    color: var(--primary-purple);
}

.admin-footer p {
    color: var(--text-dim);
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}