/* ============================================
   VBA-Expert Website — Styles
   Modern, responsive, accessible CSS
   Mobile-first approach
   ============================================ */

/* ============================================
   CSS Variables (Custom Properties)
   ============================================ */
:root {
    /* Farben basierend auf Logo: Grüntöne mit Akzentfarben */
    --color-primary: #2D5F1E;        /* Dunkelgrün */
    --color-primary-light: #7CB342;  /* Hellgrün */
    --color-accent-orange: #FF7043;  /* Orange */
    --color-accent-blue: #29B6F6;    /* Blau */
    --color-accent-yellow: #FDD835;  /* Gelb */
    
    /* Neutrale Farben */
    --color-white: #FFFFFF;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #E0E0E0;
    --color-gray-300: #BDBDBD;
    --color-gray-400: #9E9E9E;
    --color-gray-600: #757575;
    --color-gray-800: #424242;
    --color-gray-900: #212121;
    --color-black: #000000;
    
    /* Semantische Farben */
    --color-text: var(--color-gray-900);
    --color-text-light: var(--color-gray-600);
    --color-background: var(--color-white);
    --color-background-alt: var(--color-gray-100);
    --color-border: var(--color-gray-200);
    --color-error: #D32F2F;
    --color-success: #388E3C;
    
    /* Typografie */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-heading: var(--font-family-base);
    
    --font-size-base: 1rem;          /* 16px */
    --font-size-small: 0.875rem;     /* 14px */
    --font-size-large: 1.125rem;     /* 18px */
    --font-size-h1: 2.5rem;          /* 40px */
    --font-size-h2: 2rem;            /* 32px */
    --font-size-h3: 1.5rem;          /* 24px */
    --font-size-h4: 1.25rem;         /* 20px */
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-base: 1.6;
    --line-height-heading: 1.3;
    
    /* Spacing */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 1rem;      /* 16px */
    --spacing-md: 1.5rem;    /* 24px */
    --spacing-lg: 2rem;      /* 32px */
    --spacing-xl: 3rem;      /* 48px */
    --spacing-xxl: 4rem;     /* 64px */
    
    /* Layout */
    --container-max-width: 1200px;
    --container-padding: var(--spacing-sm);
    --border-radius: 0.5rem;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--spacing-md);
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    color: var(--color-primary);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
    margin: 0 0 var(--spacing-sm);
}

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

a:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-accent-blue);
    outline-offset: 2px;
}

ul, ol {
    margin: 0 0 var(--spacing-sm);
    padding-left: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
}

strong {
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   Accessibility
   ============================================ */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    z-index: 100;
    text-decoration: none;
}

.skip-link:focus {
    top: 0;
}

.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;
}

/* Focus-Styles für bessere Zugänglichkeit */
*:focus-visible {
    outline: 2px solid var(--color-accent-blue);
    outline-offset: 2px;
}

/* ============================================
   Layout Container
   ============================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo a {
    display: block;
    line-height: 0;
}

.logo img {
    max-height: 50px;
    width: auto;
    transition: opacity 0.3s ease;
}

.logo a:hover img {
    opacity: 0.8;
}

.logo a:focus {
    outline: 2px solid var(--color-accent-blue);
    outline-offset: 4px;
    border-radius: 4px;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.menu-toggle .hamburger {
    width: 30px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 10px;
    transition: var(--transition-base);
}

.menu-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Navigation */
.main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.main-nav.is-open {
    max-height: 500px;
    box-shadow: var(--box-shadow);
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: var(--spacing-sm) 0;
}

.nav-list li {
    margin: 0;
}

.nav-list a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: var(--transition-fast);
}

.nav-list a:hover,
.nav-list a:focus {
    background: var(--color-gray-100);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-list a.cta-nav {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-base);
    line-height: 1.5;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    color: var(--color-white);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--color-white);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: var(--font-size-large);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

.hero-cta .btn {
    min-width: 200px;
}

.hero-cta .btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.hero-cta .btn-secondary:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-100);
}

/* ============================================
   USP Section
   ============================================ */
.usp {
    padding: var(--spacing-xxl) 0;
    background: var(--color-background-alt);
}

.usp-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.usp-item {
    text-align: center;
    padding: var(--spacing-md);
}

.usp-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.usp-item h3 {
    font-size: var(--font-size-h4);
    margin-bottom: var(--spacing-sm);
}

.usp-item p {
    color: var(--color-text-light);
}

/* ============================================
   Sections (General)
   ============================================ */
section {
    padding: var(--spacing-xxl) 0;
}

section h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

section h2 a:hover {
    color: var(--color-primary-light) !important;
    text-decoration: none;
}

.section-intro {
    text-align: center;
    font-size: var(--font-size-large);
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

/* ============================================
   Leistungen Section
   ============================================ */
.leistungen {
    background: var(--color-white);
}

.leistungen-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.leistung-card {
    background: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition-base);
}

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

.leistung-card h3 {
    margin-bottom: var(--spacing-md);
}

.leistung-card > p {
    margin-bottom: var(--spacing-md);
}

.leistung-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.leistung-benefits li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.leistung-benefits li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary-light);
    font-weight: var(--font-weight-bold);
}

/* ============================================
   Schulungen Section
   ============================================ */
.schulungen {
    background: var(--color-background-alt);
}

.schulungen-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

/* Accordion */
.accordion {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.accordion-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.accordion-button {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    text-align: left;
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.accordion-button:hover {
    background: var(--color-gray-100);
}

.accordion-icon::after {
    content: "+";
    font-size: 1.5rem;
    transition: var(--transition-base);
}

.accordion-button[aria-expanded="true"] .accordion-icon::after {
    content: "−";
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-button[aria-expanded="true"] + .accordion-content {
    max-height: 3000px;
}

.schulung-details {
    padding: var(--spacing-md);
}

.schulung-beschreibung {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-md);
}

.schulung-module {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.modul {
    background: var(--color-background-alt);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.modul h4 {
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-sm);
}

.schulung-meta {
    background: var(--color-gray-100);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent-orange);
}

.schulung-meta p {
    margin-bottom: var(--spacing-xs);
}

.schulung-meta p:last-child {
    margin-bottom: 0;
}

.schulungen-cta {
    text-align: center;
    max-width: 700px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--border-radius);
}

.schulungen-cta p {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Prozess Section
   ============================================ */
.prozess {
    background: var(--color-white);
}

.prozess-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.prozess-step {
    position: relative;
    padding: var(--spacing-md);
    padding-left: calc(var(--spacing-xxl) + var(--spacing-md));
    background: var(--color-background-alt);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary-light);
}

.step-number {
    position: absolute;
    left: var(--spacing-md);
    top: var(--spacing-md);
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-bold);
}

.prozess-step h3 {
    margin-bottom: var(--spacing-sm);
}

.methodik-info {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--border-radius);
    border-top: 4px solid var(--color-accent-blue);
}

.methodik-info h3 {
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Über mich Section
   ============================================ */
.ueber-mich {
    background: var(--color-background-alt);
}

.ueber-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.ueber-text h2 {
    text-align: left;
}

.ueber-text h3 {
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-sm);
}

.ueber-bild {
    text-align: center;
}

.ueber-bild img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.kontakt-info-box {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.kontakt-info-box h3 {
    margin-bottom: var(--spacing-md);
}

.kontakt-details {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.kontakt-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.kontakt-item svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

.kontakt-item a {
    word-break: break-word;
}

/* ============================================
   Kontakt Section
   ============================================ */
.kontakt {
    background: var(--color-white);
}

.kontakt-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

/* Kontaktformular */
.kontakt-form {
    background: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-family-base);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(45, 95, 30, 0.1);
}

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

.required {
    color: var(--color-error);
}

/* Checkbox */
.checkbox-group {
    margin-top: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
    flex-shrink: 0;
}

/* Error Messages */
.error-message {
    display: none;
    color: var(--color-error);
    font-size: var(--font-size-small);
    margin-top: var(--spacing-xs);
}

.error-message.visible {
    display: block;
}

.form-group.has-error input,
.form-group.has-error textarea {
    border-color: var(--color-error);
}

/* Form Actions */
.form-actions {
    margin-top: var(--spacing-lg);
}

.form-note {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-small);
    color: var(--color-text-light);
}

/* Kontakt Alternative */
.kontakt-alternative {
    background: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.kontakt-alternative h3 {
    margin-bottom: var(--spacing-md);
}

.kontakt-alternative ul {
    list-style: none;
    padding: 0;
}

.kontakt-alternative li {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Modal
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
}

.modal:not([hidden]) {
    display: flex;
}

.modal-content {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: transparent;
    border: none;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    color: var(--color-gray-600);
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-content h2 {
    color: var(--color-success);
    margin-bottom: var(--spacing-md);
}

.modal-content .btn {
    margin-top: var(--spacing-md);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h3 {
    color: var(--color-white);
    font-size: var(--font-size-h4);
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-gray-300);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-600);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--color-gray-400);
}

/* ============================================
   Responsive Design: Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
    /* Typography */
    .hero h1 {
        font-size: 2.5rem;
    }
    
    /* Container */
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    /* Header */
    .menu-toggle {
        display: none;
    }
    
    .main-nav {
        position: static;
        max-height: none;
        overflow: visible;
        border: none;
    }
    
    .nav-list {
        display: flex;
        padding: 0;
    }
    
    .nav-list li {
        margin: 0;
    }
    
    .nav-list a {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    /* Hero */
    .hero {
        padding: var(--spacing-xxl) 0 calc(var(--spacing-xxl) + var(--spacing-lg));
    }
    
    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }
    
    /* USP Grid */
    .usp-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Leistungen */
    .leistungen-grid {
        grid-template-columns: 1fr;
    }
    
    /* Schulungen */
    .schulung-module {
        grid-template-columns: 1fr;
    }
    
    /* Über mich */
    .ueber-content {
        grid-template-columns: 2fr 1fr;
        align-items: center;
    }
    
    .kontakt-details {
        grid-template-columns: 1fr;
    }
    
    /* Kontakt */
    .kontakt-wrapper {
        grid-template-columns: 2fr 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   Responsive Design: Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
    /* Typography */
    :root {
        --font-size-h1: 3rem;       /* 48px */
        --font-size-h2: 2.5rem;     /* 40px */
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    /* Spacing */
    section {
        padding: calc(var(--spacing-xxl) + var(--spacing-lg)) 0;
    }
    
    /* USP Grid */
    .usp-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Leistungen */
    .leistungen-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Prozess */
    .prozess-steps {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .site-header,
    .hero-cta,
    .kontakt-form,
    .site-footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }
    
    a {
        text-decoration: underline;
        color: #000;
    }
    
    a[href^="http"]:after {
        content: " (" attr(href) ")";
    }
}