/* CSS Reset and styles based on the Subsurface website */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bs-body-color: #666;
    --bs-heading-color: #333;
    --bs-heading-font-weight: 500;
    --bs-body-font-weight: 300;
    --primary-color: rgb(52,101,164);
    --primary-hover: #1d4ed8;
    --danger-color: #dc2626;
    --danger-bg: #fee2e2;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, rgb(52,101,164), 0%, rgb(71, 137, 223) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.container {
    width: 100%;
    padding: 1rem;
}

/* Login Container */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-box {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 120px;
    height: auto;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.login-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Alert Messages */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.alert-error {
    background-color: var(--danger-bg);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

/* Form Styles */
.login-form {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"] {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.15s ease-in-out;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder {
    color: #9ca3af;
}

.form-group-checkbox {
    margin-bottom: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    outline: none;
}

.btn-primary {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem;
    font-size: 1rem;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-primary:active {
    transform: translateY(1px);
}

/* Login Footer */
.login-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

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

/* Error Pages */
.error-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.error-box {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 3rem 2.5rem;
    text-align: center;
    max-width: 480px;
}

.error-box h1 {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.error-box h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.error-box p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.error-box .btn-primary {
    width: auto;
    padding: 0.75rem 2rem;
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-box {
        padding: 2rem 1.5rem;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    .error-box {
        padding: 2rem 1.5rem;
    }

    .error-box h1 {
        font-size: 3rem;
    }
}

/* Loading State */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}