/**
 * WAZ Akademie Registration - Frontend Styles
 * Clean design with light blue, white and #2b2e63 accent color
 * 
 * @package WAZ_Akademie_Registration
 * @since 1.0.0
 */

:root {
    --waz-primary: #2b2e63;
    --waz-primary-hover: #1f2147;
    --waz-primary-light: #3a3f7a;
    --waz-blue-light: #e6f3ff;
    --waz-blue-lighter: #f0f8ff;
    --waz-blue-medium: #b3d9ff;
    --waz-blue-dark: #0066cc;
    --waz-white: #ffffff;
    --waz-gray-50: #f9fafb;
    --waz-gray-100: #f3f4f6;
    --waz-gray-200: #e5e7eb;
    --waz-gray-300: #d1d5db;
    --waz-gray-400: #9ca3af;
    --waz-gray-500: #6b7280;
    --waz-gray-600: #4b5563;
    --waz-gray-700: #374151;
    --waz-gray-800: #1f2937;
    --waz-gray-900: #111827;
    --waz-success: #10b981;
    --waz-error: #ef4444;
    --waz-warning: #f59e0b;
    --waz-info: #3b82f6;
}

/* Reset und Basis-Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--waz-gray-800);
    background: var(--waz-blue-lighter);
}

/* Registration Container - Clean Card Design */
.waz-registration-container {
    max-width: 600px;
    margin: 2rem auto;
    background: var(--waz-white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.1);
    border: 1px solid var(--waz-blue-medium);
    overflow: hidden;
}

.waz-registration-form {
    padding: 2rem;
}

.waz-registration-form h2 {
    color: var(--waz-primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.75rem;
    font-weight: 600;
    text-align: center;
    letter-spacing: -0.025em;
    border-bottom: 3px solid var(--waz-blue-light);
    padding-bottom: 0.75rem;
}

.waz-registration-form p {
    color: var(--waz-gray-600);
    margin: 0 0 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Formular-Gruppen */
.waz-form-group {
    margin-bottom: 1.5rem;
}

.waz-form-group.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.waz-form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--waz-primary);
    font-size: 0.875rem;
    letter-spacing: 0.025em;
}

.waz-form-input {
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    border: 2px solid var(--waz-blue-medium) !important;
    border-radius: 8px !important;
    font-size: 0.875rem !important;
    color: var(--waz-gray-900) !important;
    background: var(--waz-white) !important;
    background-color: var(--waz-white) !important;
    transition: all 0.2s ease !important;
    outline: none !important;
    font-family: inherit !important;
}

.waz-form-input:focus {
    border-color: var(--waz-primary) !important;
    box-shadow: 0 0 0 3px rgba(43, 46, 99, 0.1) !important;
    transform: translateY(-1px) !important;
    background: var(--waz-white) !important;
    background-color: var(--waz-white) !important;
}

.waz-form-input::placeholder {
    color: var(--waz-gray-500);
}

.waz-form-input.error {
    border-color: var(--waz-error);
    background: rgba(239, 68, 68, 0.05);
}

.waz-form-input.success {
    border-color: var(--waz-success);
    background: rgba(16, 185, 129, 0.05);
}

/* Select Dropdown */
.waz-form-select {
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    border: 2px solid var(--waz-blue-medium) !important;
    border-radius: 8px !important;
    font-size: 0.875rem !important;
    color: var(--waz-gray-900) !important;
    background: var(--waz-white) !important;
    background-color: var(--waz-white) !important;
    transition: all 0.2s ease !important;
    outline: none !important;
    font-family: inherit !important;
    cursor: pointer !important;
    appearance: none !important;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e") !important;
    background-position: right 0.75rem center !important;
    background-repeat: no-repeat !important;
    background-size: 1.5em 1.5em !important;
    padding-right: 2.5rem !important;
}

.waz-form-select:focus {
    border-color: var(--waz-primary) !important;
    box-shadow: 0 0 0 3px rgba(43, 46, 99, 0.1) !important;
    transform: translateY(-1px) !important;
    background: var(--waz-white) !important;
    background-color: var(--waz-white) !important;
}

/* Checkbox Styling - Clean Design */
.waz-form-checkbox {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.waz-form-checkbox input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
    border: 2px solid var(--waz-blue-medium);
    border-radius: 4px;
    transition: all 0.2s ease;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    position: relative;
}

.waz-form-checkbox input[type="checkbox"]:checked {
    background: var(--waz-primary);
    border-color: var(--waz-primary);
}

.waz-form-checkbox input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--waz-white);
    font-size: 0.875rem;
    font-weight: bold;
    line-height: 1;
}

.waz-form-checkbox label {
    font-size: 0.875rem;
    color: var(--waz-gray-700);
    cursor: pointer;
    line-height: 1.5;
}

/* Buttons - Clean Design */
.waz-form-submit {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: var(--waz-primary);
    color: var(--waz-white);
    border: 2px solid var(--waz-primary);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    min-height: 48px;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    font-family: inherit;
}

.waz-form-submit:hover {
    background: var(--waz-primary-hover);
    border-color: var(--waz-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(43, 46, 99, 0.25);
}

.waz-form-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(43, 46, 99, 0.25);
}

.waz-form-submit:disabled {
    background: var(--waz-gray-400);
    border-color: var(--waz-gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Links */
.waz-form-link {
    display: inline-block;
    color: var(--waz-primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    margin-top: 1rem;
}

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

/* Loading Spinner */
.waz-loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--waz-blue-medium);
    border-top: 2px solid var(--waz-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

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

/* Messages */
.waz-form-error {
    color: var(--waz-error);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.waz-form-message {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    font-weight: 500;
    border: 1px solid transparent;
}

.waz-form-message.success {
    background: var(--waz-blue-lighter);
    color: var(--waz-success);
    border-color: var(--waz-success);
}

.waz-form-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--waz-error);
    border-color: rgba(239, 68, 68, 0.2);
}

.waz-form-message.info {
    background: var(--waz-blue-light);
    color: var(--waz-info);
    border-color: var(--waz-info);
}

.waz-form-message.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--waz-warning);
    border-color: rgba(245, 158, 11, 0.2);
}

/* Progress Steps */
.waz-progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.waz-progress-steps::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--waz-blue-medium);
    transform: translateY(-50%);
    z-index: 1;
}

.waz-step {
    position: relative;
    z-index: 2;
    background: var(--waz-white);
    border: 2px solid var(--waz-blue-medium);
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--waz-gray-500);
    transition: all 0.2s ease;
}

.waz-step.active {
    border-color: var(--waz-primary);
    background: var(--waz-primary);
    color: var(--waz-white);
}

.waz-step.completed {
    border-color: var(--waz-success);
    background: var(--waz-success);
    color: var(--waz-white);
}

/* Domain Validation */
.waz-domain-validation {
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

.waz-domain-validation.valid {
    color: var(--waz-success);
}

.waz-domain-validation.invalid {
    color: var(--waz-error);
}

.waz-domain-validation.checking {
    color: var(--waz-info);
}

/* Password Strength */
.waz-password-strength {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

.waz-password-strength-bar {
    height: 4px;
    background: var(--waz-gray-200);
    border-radius: 2px;
    margin-top: 0.25rem;
    overflow: hidden;
}

.waz-password-strength-bar.weak {
    background: var(--waz-error);
}

.waz-password-strength-bar.fair {
    background: var(--waz-warning);
}

.waz-password-strength-bar.good {
    background: var(--waz-info);
}

.waz-password-strength-bar.strong {
    background: var(--waz-success);
}

/* Responsive Design */
@media (max-width: 768px) {
    .waz-registration-container {
        margin: 1rem;
        max-width: none;
    }
    
    .waz-registration-form {
        padding: 1.5rem;
    }
    
    .waz-registration-form h2 {
        font-size: 1.5rem;
    }
    
    .waz-form-group.row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .waz-form-input {
        font-size: 1rem;
    }
    
    .waz-form-submit {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .waz-registration-container {
        margin: 0.5rem;
        border-radius: 8px;
    }
    
    .waz-registration-form {
        padding: 1rem;
    }
    
    .waz-registration-form h2 {
        font-size: 1.25rem;
    }
    
    .waz-form-input {
        padding: 0.875rem 1rem;
    }
    
    .waz-form-submit {
        padding: 1rem 1.5rem;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .waz-registration-container {
        border-width: 2px;
    }
    
    .waz-form-input {
        border-width: 2px;
    }
    
    .waz-form-submit {
        border-width: 2px;
    }
}

/* Focus-visible für bessere Accessibility */
.waz-form-input:focus-visible,
.waz-form-select:focus-visible,
.waz-form-submit:focus-visible,
.waz-form-checkbox input[type="checkbox"]:focus-visible {
    outline: 2px solid var(--waz-primary);
    outline-offset: 2px;
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.waz-registration-container {
    animation: fadeIn 0.3s ease;
}

.waz-form-message.success {
    animation: slideIn 0.3s ease;
}

.waz-form-message.error {
    animation: shake 0.5s ease;
}

/* Hover-Effekte für bessere Interaktivität */
.waz-form-input:hover {
    border-color: var(--waz-blue-dark);
}

.waz-form-input:focus:hover {
    border-color: var(--waz-primary);
}

/* Custom Scrollbar */
.waz-registration-container ::-webkit-scrollbar {
    width: 8px;
}

.waz-registration-container ::-webkit-scrollbar-track {
    background: var(--waz-blue-lighter);
    border-radius: 4px;
}

.waz-registration-container ::-webkit-scrollbar-thumb {
    background: var(--waz-blue-medium);
    border-radius: 4px;
}

.waz-registration-container ::-webkit-scrollbar-thumb:hover {
    background: var(--waz-blue-dark);
}