/* =====================================================
   HOLZAPFEL METZGEREI - Modern Clean Login Page
   ===================================================== */

:root {
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;

    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-50: #eff6ff;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --success: #10b981;
    --success-light: #d1fae5;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --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 -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.container {
    width: 100%;
    max-width: 420px;
}

/* Login Card */
.login-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

/* Card Header */
.card-header {
    background: var(--white);
    padding: 2.5rem 2rem 1.5rem;
    text-align: center;
    border-bottom: 1px solid var(--gray-200);
}

.logo {
    max-width: 90px;
    margin-bottom: 1.25rem;
}

.card-header h2 {
    margin: 0;
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--gray-900);
    letter-spacing: -0.025em;
}

.card-header p {
    margin: 0.5rem 0 0;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Card Body */
.card-body {
    padding: 2rem;
}

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

.form-label {
    display: block;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.input-group {
    display: flex;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-300);
    background: var(--white);
    transition: all 0.15s ease;
}

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

.input-group-text {
    background: var(--gray-50);
    border: none;
    padding: 0.75rem 1rem;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    border-right: 1px solid var(--gray-200);
}

.input-group-text i {
    font-size: 0.9rem;
}

.form-control {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--gray-800);
    font-size: 0.9375rem;
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-400);
}

/* Submit Button */
.btn-primary {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--white);
    background: var(--primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    margin-top: 0.75rem;
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

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

/* Alerts */
.alert {
    padding: 0.875rem 1rem;
    margin-bottom: 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.alert-danger {
    background: var(--danger-light);
    color: #b91c1c;
}

.alert-success {
    background: var(--success-light);
    color: #065f46;
}

/* Footer */
.card-footer {
    padding: 1.25rem 2rem;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.card-footer p {
    margin: 0;
    color: var(--gray-500);
    font-size: 0.8125rem;
}

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

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

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: 1rem;
        align-items: flex-start;
        padding-top: 3rem;
    }

    .container {
        max-width: 100%;
    }

    .card-header {
        padding: 2rem 1.5rem 1.25rem;
    }

    .logo {
        max-width: 72px;
    }

    .card-header h2 {
        font-size: 1.25rem;
    }

    .card-body {
        padding: 1.5rem;
    }
}

/* Loading state */
.btn-primary.loading {
    pointer-events: none;
    opacity: 0.7;
    position: relative;
}

.btn-primary.loading::after {
    content: '';
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: 0.625rem;
    display: inline-block;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Remember me checkbox */
.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.form-check-input {
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    cursor: pointer;
}

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

.form-check-label {
    color: var(--gray-600);
    font-size: 0.875rem;
    cursor: pointer;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--gray-400);
    font-size: 0.8125rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.divider span {
    padding: 0 1rem;
}

/* Brand colors accent */
.brand-accent {
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, #3b82f6 100%);
}