/* CSS Variables for consistent theming */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --light-gray: #f8fafc;
    --medium-gray: #e2e8f0;
    --dark-gray: #475569;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --transition: all 0.2s ease-in-out;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

/* Header Styles */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid var(--medium-gray);
    padding: 1rem 0;
}

.logo-container {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(135deg, var(--primary-color), #dc2626);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Swiss-themed styling for Delley.info */
.logo-container .fa-mountain {
    color: #dc2626;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem !important;
}

.nav-link:hover {
    background-color: var(--primary-light);
    color: var(--primary-color) !important;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 2rem 0;
    min-height: calc(100vh - 140px);
}

/* Login Card */
.login-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.login-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: 1rem;
    color: var(--secondary-color);
    margin-bottom: 0;
}

/* Form Styles */
.form-label {
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.input-wrapper {
    position: relative;
    margin-bottom: 0.5rem;
}

.form-control {
    border: 2px solid var(--medium-gray);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    padding-left: 2.5rem;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-control.is-invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-control.is-valid {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
    font-size: 0.875rem;
    pointer-events: none;
    z-index: 2;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    z-index: 3;
}

/* Hide password toggle when validation icons are shown */
.input-wrapper .form-control.is-valid ~ .password-toggle,
.input-wrapper .form-control.is-invalid ~ .password-toggle {
    right: 2.5rem;
}

.password-toggle:hover {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

.invalid-feedback {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* Form Options */
.form-options {
    margin: 1.5rem 0;
}

.form-check-input {
    border: 2px solid var(--medium-gray);
    border-radius: 0.25rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.forgot-password-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.forgot-password-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Button Styles */
.btn-login {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border: none;
    border-radius: var(--border-radius);
    padding: 0.875rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-login:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-hover), #1e40af);
}

.btn-login:active:not(:disabled) {
    transform: translateY(0);
}

.btn-login:disabled {
    background: var(--medium-gray);
    color: var(--secondary-color);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

.btn-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Login Footer */
.login-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--medium-gray);
}

.signup-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.signup-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Footer */
.footer {
    background-color: rgba(248, 250, 252, 0.95) !important;
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--medium-gray);
    margin-top: auto;
}

.footer-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Modal Styles */
.modal-content {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--medium-gray);
    padding: 1.5rem;
}

.modal-title {
    font-weight: 600;
    color: var(--dark-gray);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--medium-gray);
    padding: 1rem 1.5rem;
}

.terms-content h6,
.privacy-content h6 {
    color: var(--dark-gray);
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.terms-content h6:first-child,
.privacy-content h6:first-child {
    margin-top: 0;
}

.terms-content p,
.privacy-content p {
    color: var(--secondary-color);
    line-height: 1.6;
}

.terms-content ul,
.privacy-content ul {
    color: var(--secondary-color);
    padding-left: 1.5rem;
}

.terms-content li,
.privacy-content li {
    margin-bottom: 0.25rem;
}

/* Success Modal */
.success-icon {
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Loading Animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spinner {
    animation: spin 1s linear infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
        min-height: calc(100vh - 120px);
    }
    
    .login-card {
        padding: 2rem 1.5rem;
        margin: 0 auto;
        border-radius: var(--border-radius);
        width: 100%;
        max-width: 400px;
    }
    
    .login-title {
        font-size: 1.75rem;
    }
    
    .navbar {
        padding: 0.75rem 0;
    }
    
    .logo-container {
        font-size: 1.25rem;
    }
    
    .footer .row {
        text-align: center;
    }
    
    .footer .col-md-6:last-child {
        margin-top: 0.5rem;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: 0.5rem;
    }
    
    .login-card {
        padding: 1.5rem 1rem;
        margin: 0 auto;
        width: 100%;
        max-width: 350px;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
    
    .form-control {
        padding: 0.625rem 0.875rem;
        padding-left: 2.25rem;
    }
    
    .input-icon {
        left: 0.625rem;
        font-size: 0.8125rem;
    }
    
    .password-toggle {
        right: 0.625rem;
    }
    
    /* Ensure proper centering on very small screens */
    .input-wrapper .form-control.is-valid ~ .password-toggle,
    .input-wrapper .form-control.is-invalid ~ .password-toggle {
        right: 2.25rem;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles for Better Accessibility */
.btn:focus,
.form-control:focus,
.form-check-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --primary-hover: #0000cc;
        --danger-color: #ff0000;
        --success-color: #008000;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --white: #1f2937;
        --light-gray: #111827;
        --medium-gray: #374151;
        --dark-gray: #f9fafb;
        --secondary-color: #d1d5db;
    }
    
    body {
        background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    }
    
    .navbar {
        background-color: rgba(31, 41, 55, 0.95) !important;
        border-bottom-color: var(--medium-gray);
    }
    
    .footer {
        background-color: rgba(17, 24, 39, 0.95) !important;
        border-top-color: var(--medium-gray);
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
    }
    
    .navbar,
    .footer {
        display: none;
    }
    
    .login-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}