/**
 * FondiSoft Design System - Komponenten
 * Basierend auf variables.css
 *
 * Inhalt:
 * 1. Reset & Base
 * 2. Typography
 * 3. Buttons
 * 4. Cards
 * 5. Navigation
 * 6. Forms
 * 7. Badges & Tags
 * 8. Alerts
 * 9. Utilities
 */

/* ============================================
   FONTS - Lokale Einbindung via fonts.css
   ============================================ */

/* ============================================
   1. RESET & BASE
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--fs-font-family);
    font-size: var(--fs-text-base);
    font-weight: var(--fs-font-regular);
    line-height: var(--fs-leading-relaxed);
    color: var(--fs-color-text);
    background-color: var(--fs-color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: var(--fs-color-primary);
    text-decoration: none;
    transition: var(--fs-transition-colors);
}

a:hover {
    color: var(--fs-color-primary-dark);
}

a:focus-visible {
    outline: 2px solid var(--fs-color-primary);
    outline-offset: 2px;
    border-radius: var(--fs-radius-sm);
}

ul,
ol {
    list-style: none;
}

button,
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

address {
    font-style: normal;
}

/* ============================================
   2. TYPOGRAPHY
   ============================================ */

/* Headings */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-weight: var(--fs-font-bold);
    line-height: var(--fs-leading-tight);
    color: var(--fs-color-text);
    margin-bottom: var(--fs-space-4);
}

h1, .h1 {
    font-size: var(--fs-text-5xl);
    font-weight: var(--fs-font-bold);
    letter-spacing: var(--fs-tracking-tight);
}

h2, .h2 {
    font-size: var(--fs-text-4xl);
    font-weight: var(--fs-font-semibold);
}

h3, .h3 {
    font-size: var(--fs-text-3xl);
    font-weight: var(--fs-font-semibold);
}

h4, .h4 {
    font-size: var(--fs-text-2xl);
    font-weight: var(--fs-font-semibold);
}

h5, .h5 {
    font-size: var(--fs-text-xl);
    font-weight: var(--fs-font-medium);
}

h6, .h6 {
    font-size: var(--fs-text-lg);
    font-weight: var(--fs-font-medium);
}

/* Paragraphs */
p {
    margin-bottom: var(--fs-space-4);
}

.lead {
    font-size: var(--fs-text-xl);
    font-weight: var(--fs-font-regular);
    color: var(--fs-color-text-secondary);
    line-height: var(--fs-leading-relaxed);
}

.text-sm {
    font-size: var(--fs-text-sm);
}

.text-lg {
    font-size: var(--fs-text-lg);
}

.text-muted {
    color: var(--fs-color-text-muted);
}

.text-primary {
    color: var(--fs-color-primary);
}

.text-accent {
    color: var(--fs-color-accent);
}

/* Links */
.link {
    color: var(--fs-color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: var(--fs-transition-colors);
}

.link:hover {
    color: var(--fs-color-primary-dark);
}

.link-subtle {
    color: var(--fs-color-text-secondary);
    text-decoration: none;
}

.link-subtle:hover {
    color: var(--fs-color-primary);
}

/* ============================================
   3. BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--fs-space-2);
    padding: var(--fs-space-3) var(--fs-space-6);
    font-size: var(--fs-text-base);
    font-weight: var(--fs-font-medium);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    border-radius: var(--fs-radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--fs-transition-fast) var(--fs-ease-in-out);
    user-select: none;
}

.btn:focus-visible {
    outline: 2px solid var(--fs-color-primary);
    outline-offset: 2px;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary Button */
.btn-primary {
    background-color: var(--fs-color-primary);
    color: var(--fs-color-text-inverse);
    border-color: var(--fs-color-primary);
}

.btn-primary:hover {
    background-color: var(--fs-color-primary-dark);
    border-color: var(--fs-color-primary-dark);
    color: var(--fs-color-text-inverse);
    box-shadow: var(--fs-shadow-primary);
    transform: translateY(-1px);
}

.btn-primary:active {
    background-color: var(--fs-color-primary-darker);
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
    background-color: var(--fs-color-secondary);
    color: var(--fs-color-text-inverse);
    border-color: var(--fs-color-secondary);
}

.btn-secondary:hover {
    background-color: var(--fs-color-secondary-dark);
    border-color: var(--fs-color-secondary-dark);
    color: var(--fs-color-text-inverse);
    transform: translateY(-1px);
}

/* Accent Button (CTA) */
.btn-accent {
    background-color: var(--fs-color-accent);
    color: var(--fs-color-text-inverse);
    border-color: var(--fs-color-accent);
}

.btn-accent:hover {
    background-color: var(--fs-color-accent-dark);
    border-color: var(--fs-color-accent-dark);
    color: var(--fs-color-text-inverse);
    box-shadow: var(--fs-shadow-accent);
    transform: translateY(-1px);
}

/* Outline Button */
.btn-outline {
    background-color: transparent;
    color: var(--fs-color-primary);
    border-color: var(--fs-color-primary);
}

.btn-outline:hover {
    background-color: var(--fs-color-primary);
    color: var(--fs-color-text-inverse);
}

.btn-outline-light {
    background-color: transparent;
    color: var(--fs-color-text-inverse);
    border-color: var(--fs-color-text-inverse);
}

.btn-outline-light:hover {
    background-color: var(--fs-color-text-inverse);
    color: var(--fs-color-primary);
}

/* Ghost Button */
.btn-ghost {
    background-color: transparent;
    color: var(--fs-color-primary);
    border-color: transparent;
}

.btn-ghost:hover {
    background-color: var(--fs-color-primary-10);
}

/* Button Sizes */
.btn-sm {
    padding: var(--fs-space-2) var(--fs-space-4);
    font-size: var(--fs-text-sm);
    border-radius: var(--fs-radius-sm);
}

.btn-lg {
    padding: var(--fs-space-4) var(--fs-space-8);
    font-size: var(--fs-text-lg);
    border-radius: var(--fs-radius-lg);
}

.btn-xl {
    padding: var(--fs-space-5) var(--fs-space-10);
    font-size: var(--fs-text-xl);
    border-radius: var(--fs-radius-lg);
}

/* Full Width Button */
.btn-block {
    width: 100%;
}

/* Button with Icon */
.btn-icon {
    padding: var(--fs-space-3);
    border-radius: var(--fs-radius-md);
}

.btn-icon.btn-sm {
    padding: var(--fs-space-2);
}

.btn-icon.btn-lg {
    padding: var(--fs-space-4);
}

/* Button Group */
.btn-group {
    display: inline-flex;
}

.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-radius: var(--fs-radius-md) 0 0 var(--fs-radius-md);
}

.btn-group .btn:last-child {
    border-radius: 0 var(--fs-radius-md) var(--fs-radius-md) 0;
}

.btn-group .btn:not(:last-child) {
    border-right-width: 1px;
}

/* ============================================
   4. CARDS
   ============================================ */

.card {
    background-color: var(--fs-color-bg);
    border-radius: var(--fs-radius-xl);
    box-shadow: var(--fs-shadow-md);
    overflow: hidden;
    transition: transform var(--fs-transition-normal) var(--fs-ease-out),
                box-shadow var(--fs-transition-normal) var(--fs-ease-out);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--fs-shadow-xl);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-image-lg {
    height: 280px;
}

.card-body {
    padding: var(--fs-space-6);
}

.card-title {
    font-size: var(--fs-text-xl);
    font-weight: var(--fs-font-semibold);
    margin-bottom: var(--fs-space-2);
    color: var(--fs-color-text);
}

.card-subtitle {
    font-size: var(--fs-text-sm);
    color: var(--fs-color-text-muted);
    margin-bottom: var(--fs-space-3);
}

.card-text {
    color: var(--fs-color-text-secondary);
    margin-bottom: var(--fs-space-4);
}

.card-footer {
    padding: var(--fs-space-4) var(--fs-space-6);
    background-color: var(--fs-color-bg-alt);
    border-top: 1px solid var(--fs-color-border);
}

/* Card Variants */
.card-flat {
    box-shadow: none;
    border: 1px solid var(--fs-color-border);
}

.card-flat:hover {
    box-shadow: var(--fs-shadow-md);
    border-color: var(--fs-color-primary-20);
}

.card-highlighted {
    border: 2px solid var(--fs-color-primary);
}

.card-dark {
    background-color: var(--fs-color-bg-dark);
    color: var(--fs-color-text-inverse);
}

.card-dark .card-title,
.card-dark .card-text {
    color: var(--fs-color-text-inverse);
}

.card-dark .card-text {
    opacity: 0.8;
}

/* Feature Card */
.card-feature {
    text-align: center;
    padding: var(--fs-space-8);
}

.card-feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--fs-space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--fs-color-primary-10);
    border-radius: var(--fs-radius-lg);
    font-size: var(--fs-text-3xl);
}

/* ============================================
   5. NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--fs-header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--fs-color-border);
    z-index: var(--fs-z-sticky);
    transition: all var(--fs-transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--fs-shadow-md);
}

.navbar-container {
    max-width: var(--fs-container-xl);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--fs-space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
}

.navbar-brand img {
    height: 40px;
    width: auto;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--fs-space-8);
}

.navbar-link {
    position: relative;
    color: var(--fs-color-text);
    font-weight: var(--fs-font-medium);
    padding: var(--fs-space-2) 0;
    transition: color var(--fs-transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
    color: var(--fs-color-primary);
}

.navbar-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--fs-color-primary);
    border-radius: var(--fs-radius-full);
}

/* Dropdown */
.navbar-dropdown {
    position: relative;
}

.navbar-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    padding: var(--fs-space-2) 0;
    background-color: var(--fs-color-bg);
    border-radius: var(--fs-radius-lg);
    box-shadow: var(--fs-shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--fs-transition-fast);
}

.navbar-dropdown:hover .navbar-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.navbar-dropdown-item {
    display: block;
    padding: var(--fs-space-3) var(--fs-space-5);
    color: var(--fs-color-text);
    transition: background-color var(--fs-transition-fast);
}

.navbar-dropdown-item:hover {
    background-color: var(--fs-color-bg-alt);
    color: var(--fs-color-primary);
}

/* Navbar Actions */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--fs-space-4);
}

/* Language Switcher */
.lang-switch {
    display: flex;
    gap: var(--fs-space-2);
}

.lang-switch-btn {
    opacity: 0.5;
    transition: opacity var(--fs-transition-fast);
    padding: var(--fs-space-1);
}

.lang-switch-btn:hover,
.lang-switch-btn.active {
    opacity: 1;
}

.lang-switch-btn img {
    width: 24px;
    height: auto;
    border-radius: var(--fs-radius-sm);
}

/* Mobile Menu Toggle */
.navbar-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--fs-radius-md);
    transition: background-color var(--fs-transition-fast);
}

.navbar-toggle:hover {
    background-color: var(--fs-color-bg-alt);
}

.navbar-toggle-icon {
    position: relative;
    width: 24px;
    height: 2px;
    background-color: var(--fs-color-text);
    transition: background-color var(--fs-transition-fast);
}

.navbar-toggle-icon::before,
.navbar-toggle-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: currentColor;
    transition: transform var(--fs-transition-fast);
}

.navbar-toggle-icon::before {
    top: -8px;
}

.navbar-toggle-icon::after {
    bottom: -8px;
}

/* ============================================
   6. FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--fs-space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--fs-space-2);
    font-weight: var(--fs-font-medium);
    color: var(--fs-color-text);
}

.form-label-required::after {
    content: ' *';
    color: var(--fs-color-error);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--fs-space-3) var(--fs-space-4);
    font-size: var(--fs-text-base);
    color: var(--fs-color-text);
    background-color: var(--fs-color-bg);
    border: 1px solid var(--fs-color-border);
    border-radius: var(--fs-radius-md);
    transition: border-color var(--fs-transition-fast),
                box-shadow var(--fs-transition-fast);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
    border-color: var(--fs-color-border-dark);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--fs-color-primary);
    box-shadow: 0 0 0 3px var(--fs-color-primary-20);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--fs-color-text-muted);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Input Sizes */
.form-input-sm {
    padding: var(--fs-space-2) var(--fs-space-3);
    font-size: var(--fs-text-sm);
}

.form-input-lg {
    padding: var(--fs-space-4) var(--fs-space-5);
    font-size: var(--fs-text-lg);
}

/* Input States */
.form-input.is-valid {
    border-color: var(--fs-color-success);
}

.form-input.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.form-input.is-invalid {
    border-color: var(--fs-color-error);
}

.form-input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-error {
    margin-top: var(--fs-space-2);
    font-size: var(--fs-text-sm);
    color: var(--fs-color-error);
}

.form-hint {
    margin-top: var(--fs-space-2);
    font-size: var(--fs-text-sm);
    color: var(--fs-color-text-muted);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--fs-space-3);
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--fs-color-primary);
    cursor: pointer;
}

.form-check-label {
    font-weight: var(--fs-font-regular);
    color: var(--fs-color-text);
    cursor: pointer;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--fs-space-4);
    margin-top: var(--fs-space-6);
}

/* ============================================
   7. BADGES & TAGS
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--fs-space-1) var(--fs-space-3);
    font-size: var(--fs-text-xs);
    font-weight: var(--fs-font-medium);
    line-height: 1.4;
    border-radius: var(--fs-radius-full);
}

.badge-primary {
    background-color: var(--fs-color-primary);
    color: var(--fs-color-text-inverse);
}

.badge-secondary {
    background-color: var(--fs-color-secondary);
    color: var(--fs-color-text-inverse);
}

.badge-accent {
    background-color: var(--fs-color-accent);
    color: var(--fs-color-text-inverse);
}

.badge-success {
    background-color: var(--fs-color-success-light);
    color: var(--fs-color-success-dark);
}

.badge-error {
    background-color: var(--fs-color-error-light);
    color: var(--fs-color-error-dark);
}

.badge-outline {
    background-color: transparent;
    border: 1px solid var(--fs-color-border);
    color: var(--fs-color-text-secondary);
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--fs-space-1);
    padding: var(--fs-space-1) var(--fs-space-3);
    font-size: var(--fs-text-sm);
    background-color: var(--fs-color-bg-alt);
    border-radius: var(--fs-radius-md);
    color: var(--fs-color-text-secondary);
}

/* ============================================
   8. ALERTS
   ============================================ */

.alert {
    padding: var(--fs-space-4) var(--fs-space-5);
    border-radius: var(--fs-radius-lg);
    border-left: 4px solid;
}

.alert-success {
    background-color: var(--fs-color-success-light);
    border-color: var(--fs-color-success);
    color: var(--fs-color-success-dark);
}

.alert-error {
    background-color: var(--fs-color-error-light);
    border-color: var(--fs-color-error);
    color: var(--fs-color-error-dark);
}

.alert-warning {
    background-color: var(--fs-color-warning-light);
    border-color: var(--fs-color-warning);
    color: var(--fs-color-warning-dark);
}

.alert-info {
    background-color: var(--fs-color-info-light);
    border-color: var(--fs-color-info);
    color: var(--fs-color-info-dark);
}

.alert-title {
    font-weight: var(--fs-font-semibold);
    margin-bottom: var(--fs-space-1);
}

/* ============================================
   9. UTILITIES
   ============================================ */

/* Container */
.container {
    max-width: var(--fs-container-xl);
    margin: 0 auto;
    padding: 0 var(--fs-space-6);
}

.container-sm { max-width: var(--fs-container-sm); }
.container-md { max-width: var(--fs-container-md); }
.container-lg { max-width: var(--fs-container-lg); }

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--fs-space-2); }
.gap-4 { gap: var(--fs-space-4); }
.gap-6 { gap: var(--fs-space-6); }
.gap-8 { gap: var(--fs-space-8); }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Spacing */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-4 { margin-top: var(--fs-space-4); }
.mt-8 { margin-top: var(--fs-space-8); }
.mb-4 { margin-bottom: var(--fs-space-4); }
.mb-8 { margin-bottom: var(--fs-space-8); }

.p-4 { padding: var(--fs-space-4); }
.p-6 { padding: var(--fs-space-6); }
.p-8 { padding: var(--fs-space-8); }
.py-4 { padding-top: var(--fs-space-4); padding-bottom: var(--fs-space-4); }
.py-8 { padding-top: var(--fs-space-8); padding-bottom: var(--fs-space-8); }
.py-16 { padding-top: var(--fs-space-16); padding-bottom: var(--fs-space-16); }
.px-4 { padding-left: var(--fs-space-4); padding-right: var(--fs-space-4); }
.px-6 { padding-left: var(--fs-space-6); padding-right: var(--fs-space-6); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Background */
.bg-primary { background-color: var(--fs-color-primary); }
.bg-alt { background-color: var(--fs-color-bg-alt); }
.bg-dark { background-color: var(--fs-color-bg-dark); }

/* Border Radius */
.rounded { border-radius: var(--fs-radius-md); }
.rounded-lg { border-radius: var(--fs-radius-lg); }
.rounded-xl { border-radius: var(--fs-radius-xl); }
.rounded-full { border-radius: var(--fs-radius-full); }

/* Shadow */
.shadow { box-shadow: var(--fs-shadow-md); }
.shadow-lg { box-shadow: var(--fs-shadow-lg); }
.shadow-xl { box-shadow: var(--fs-shadow-xl); }

/* Visibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Section Spacing */
.section {
    padding: var(--fs-space-16) 0;
}

.section-sm {
    padding: var(--fs-space-12) 0;
}

.section-lg {
    padding: var(--fs-space-24) 0;
}

/* Divider */
.divider {
    height: 1px;
    background-color: var(--fs-color-border);
    margin: var(--fs-space-8) 0;
}

/* ============================================
   RESPONSIVE (Mobile Navigation)
   ============================================ */
@media (max-width: 768px) {
    .navbar {
        height: var(--fs-header-height-mobile);
    }

    .navbar-nav {
        position: fixed;
        top: var(--fs-header-height-mobile);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        gap: 0;
        padding: var(--fs-space-6);
        background-color: var(--fs-color-bg);
        transform: translateX(100%);
        transition: transform var(--fs-transition-normal);
    }

    .navbar-nav.is-open {
        transform: translateX(0);
    }

    .navbar-link {
        display: block;
        padding: var(--fs-space-4) 0;
        border-bottom: 1px solid var(--fs-color-border);
        font-size: var(--fs-text-lg);
    }

    .navbar-toggle {
        display: flex;
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-block-mobile {
        width: 100%;
    }
}