:root {
    --bg-dark: #070913;
    --card-bg: rgba(18, 24, 38, 0.7);
    --neon-cyan: #00f3ff;
    --neon-pink: #ff007f;
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --border-glass: rgba(255, 255, 255, 0.1);
}

html, body {
    background-color: var(--bg-dark) !important;
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    min-height: 100vh;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-image: radial-gradient(circle at 50% 20%, rgba(0, 243, 255, 0.05) 0%, transparent 60%);
}

.login-container {
    text-align: center;
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    margin: auto;
}

.login-logo {
    width: 180px;
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 15px rgba(0, 243, 255, 0.4));
}

.profiles-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.profile-card {
    background: var(--card-bg);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1.5rem;
    width: 130px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.profile-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
}

.profile-avatar {
    width: 90px;
    height: 90px;
    border-radius: 12px;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 2px solid var(--border-glass);
}

.profile-name {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

/* PIN Modal Styling */
.pin-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(7, 9, 19, 0.85);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.pin-box {
    background: var(--card-bg);
    border: 1px solid var(--neon-cyan);
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.2);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    width: 320px;
}

.pin-inputs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 1.5rem 0;
}

.pin-digit {
    width: 45px;
    height: 55px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    color: var(--neon-cyan);
    font-size: 1.5rem;
    text-align: center;
}

.pin-digit:focus {
    border-color: var(--neon-pink);
    outline: none;
    box-shadow: 0 0 10px rgba(255, 0, 127, 0.4);
}