/* Modern Auth UI */
:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --surface: #ffffff;
    --background: #f1f5f9;
    --text: #0f172a;
    --text-light: #64748b;
    --border: #e2e8f0;
    --error: #ef4444;
    --success: #22c55e;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text);
    line-height: 1.5;
}

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 
        0px 4px 6px -1px rgba(0, 0, 0, 0.1),
        0px 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.auth-card:hover {
    transform: translateY(-2px);
    box-shadow: 
        0px 10px 15px -3px rgba(0, 0, 0, 0.1),
        0px 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.auth-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.auth-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.75rem;
    letter-spacing: -0.025em;
}

.auth-header p {
    color: var(--text-light);
    font-size: 1rem;
}

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

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

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
    color: var(--text);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.2s ease;
}

.form-control:hover {
    border-color: var(--primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15);
    background: var(--surface);
}

.btn-auth {
    width: 100%;
    padding: 0.875rem 1.5rem;
    margin-top: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
    background: var(--primary);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-auth:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
}

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

.form-check {
    display: flex;
    align-items: center;
    margin: 1.25rem 0;
    gap: 0.5rem;
}

.form-check-input {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.form-check-label {
    font-size: 0.875rem;
    color: var(--text-light);
    cursor: pointer;
}

.auth-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.auth-footer p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.alert {
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-danger {
    background: #fef2f2;
    color: var(--error);
    border: 1px solid #fee2e2;
}

.alert-success {
    background: #f0fdf4;
    color: var(--success);
    border: 1px solid #dcfce7;
}

.invalid-feedback {
    display: none;
    font-size: 0.75rem;
    color: var(--error);
    margin-top: 0.5rem;
}

@media (max-width: 640px) {
    .auth-card {
        padding: 2rem;
        border-radius: 20px;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Auth Pages Styling */
:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --text-color: #1f2937;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
}

body {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--text-color);
    min-height: 100vh;
}

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 2rem 0;
}

.auth-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.auth-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.08);
}

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

.auth-header img {
    margin-bottom: 1.5rem;
    height: 50px;
    transition: transform 0.3s ease;
}

.auth-header img:hover {
    transform: scale(1.05);
}

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

.auth-header p {
    color: var(--text-muted);
    font-size: 1rem;
}

.form-floating {
    margin-bottom: 1rem;
}

.form-floating > .form-control {
    padding: 1rem 0.75rem;
    height: calc(3.5rem + 2px);
    line-height: 1.25;
}

.form-floating > label {
    padding: 1rem 0.75rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.1);
}

.btn-auth {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: 0.8rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.auth-footer a:hover {
    color: var(--primary-hover);
}

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

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
}

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

.auth-divider span {
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.social-login {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: white;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.social-btn:hover {
    background: #f8fafc;
    transform: translateY(-2px);
}

.social-btn i {
    font-size: 1.25rem;
    margin-right: 0.5rem;
}

/* Animation keyframes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-card {
    animation: fadeIn 0.5s ease-out;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .auth-card {
        margin: 1rem;
    }
    
    .social-login {
        flex-direction: column;
    }
}

/* Custom animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Logo hover effect */
img.logo {
    transition: transform 0.3s ease;
}

img.logo:hover {
    transform: scale(1.05);
}

/* Link styling */
a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: darken(var(--primary-color), 15%);
}

/* Form validation styling */
.was-validated .form-control:invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.was-validated .form-control:valid:focus {
    border-color: #198754;
    box-shadow: 0 0 0 0.2rem rgba(25, 135, 84, 0.25);
}

/* Password strength indicator */
.password-strength {
    height: 4px;
    margin-top: 0.5rem;
    border-radius: 2px;
    background-color: #e9ecef;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.strength-weak {
    background-color: #dc3545;
    width: 33.33%;
}

.strength-medium {
    background-color: #ffc107;
    width: 66.66%;
}

.strength-strong {
    background-color: #198754;
    width: 100%;
}