body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: radial-gradient(circle at 50% 10%, #161920 0%, #0d0f12 100%);
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: rgba(22, 25, 32, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    padding: 40px 32px;
}

.brand-header {
    text-align: center;
    margin-bottom: 28px;
}

.icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), #1d4ed8);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    box-shadow: 0 8px 20px var(--primary-glow);
}

.brand-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 6px;
}

.brand-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: #f1f5f9;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    right: 14px;
    width: 18px;
    height: 18px;
    color: var(--text-dim);
    pointer-events: none;
}

.input-container input {
    width: 100%;
    padding: 12px 42px 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(13, 15, 18, 0.6);
    font-size: 0.95rem;
    color: #ffffff;
    outline: none;
    transition: var(--transition);
}

.input-container input:focus {
    border-color: var(--primary);
    background: rgba(13, 15, 18, 0.9);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn-submit {
    width: 100%;
    padding: 13px;
    margin-top: 10px;
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), #2563eb);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--primary-hover), #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-submit:active {
    transform: translateY(0);
}

.alert-error {
    background: var(--danger-bg);
    color: #f87171;
    padding: 12px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid rgba(239, 68, 68, 0.3);
}