:root {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-primary: #ffffff;
    --accent-secondary: #e0e0e0;
    --accent-gradient: linear-gradient(135deg, #2c2c2c 0%, #1a1a1a 100%);
    --card-bg: #1e1e1e;
    --card-border: #333333;
    --input-bg: #121212;
    --input-border: #333333;
    --input-focus: #ffffff;
    --danger: #cf6679;
    --success: #03dac6;
    --warning: #ffb74d;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding: 2.5rem;
    width: 100%;
    max-width: 480px;
    position: relative;
    overflow: hidden;
}

/* Specific wider card for register page if needed */
.auth-card.card-wide {
    max-width: 600px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.auth-logo p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-size: 1rem;
}

.form-floating > .form-control,
.form-floating > .form-control-plaintext {
    padding: 1rem 0.75rem;
}

.form-floating > .form-control:focus,
.form-floating > .form-control:not(:placeholder-shown),
.form-floating > .form-control-plaintext:focus,
.form-floating > .form-control-plaintext:not(:placeholder-shown) {
    padding-top: 1.625rem;
    padding-bottom: 0.625rem;
}

.form-floating > label {
    padding: 1rem 0.75rem;
    color: var(--text-secondary);
}

.form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
}

.form-control:focus {
    background-color: var(--input-bg);
    border-color: var(--input-focus);
    color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    border-radius: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    transition: all 0.2s ease;
    width: 100%;
}

.btn-primary:hover {
    background: #e0e0e0;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border-color: var(--input-border);
    color: var(--text-secondary);
    border-radius: 0.5rem;
    padding: 0.875rem 1.5rem;
    width: 100%;
    transition: all 0.2s;
}

.btn-outline-secondary:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--text-secondary);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--card-border);
}

.divider span {
    padding: 0 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.social-login {
    display: grid;
    gap: 0.75rem;
}

.btn-social {
    background-color: #2c2c2c;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    padding: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    width: 100%;
}

.btn-social:hover {
    background-color: #383838;
    color: var(--text-primary);
    transform: translateY(-1px);
}

.btn-social img, .btn-social svg {
    width: 20px;
    height: 20px;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Background shapes - REMOVED for simple dark */
.bg-shape {
    display: none;
}

/* Alert Styling */
.alert {
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    color: var(--text-primary);
}

.alert-error, .alert-danger {
    border-left: 4px solid var(--danger);
    color: #ff8a80;
}

.alert-success {
    border-left: 4px solid var(--success);
    color: #a7ffeb;
}

.alert-warning {
    border-left: 4px solid var(--warning);
    color: #ffe082;
}

.alert-info {
    border-left: 4px solid var(--text-secondary);
    color: var(--text-primary);
}

/* Responsive fix for small screens */
@media (max-width: 576px) {
    .auth-container {
        padding: 1rem;
        align-items: flex-start;
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
    
    .auth-card {
        padding: 1.5rem;
    }
}