/* ==========================================================================
   Globale Styles und Reset
   ========================================================================== */
   :root {
    --primary-dark: #2c3e50;
    --primary-light: #3498db;
    --text-color: #333;
    --bg-light: #f9f9f9;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --success-color: #28a745;
    --error-color: #dc3545;
    --card-border: rgba(52, 152, 219, 0.18);
    --card-hover: rgba(52, 152, 219, 0.12);
    /* Akzentfarben für Services */
    --accent-blue: #3b82f6;   /* Design */
    --accent-purple: #8b5cf6; /* Dev */
    --accent-green: #10b981;  /* Support */
    --accent-orange: #f59e0b; /* SEO */
    --accent-teal: #06b6d4;   /* Shop */
    --accent-red: #ef4444;    /* Performance */
    --accent-slate: #64748b;  /* Hosting */
    --accent-cyan: #0ea5e9;   /* Security */
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-light);
    overflow-x: hidden;
}

/* ==========================================================================
   Utility-Klassen
   ========================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

.header__logo {
    display: block;
    margin: 0 auto 1.5rem auto;
    max-width: 350px;
    height: auto;
}

.header__title-main {
    font-size: clamp(1.8rem, 2.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: 0.2px;
    margin: 0 0 1rem 0;
}

.header__title {
    display: inline-block;
    vertical-align: middle;
    margin: 0;
}

.header .container {
    display: block;
    text-align: center;
}

.header__subtitle {
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.cta-group {
    margin: 1.5rem 0 1.25rem;
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.85rem 1.25rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn--primary { background: #fff; color: var(--primary-dark); }
.btn--primary:hover { transform: translateY(-2px); }
.btn--secondary { background: transparent; color: #fff; border: 2px solid #fff; }
.btn--secondary:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }

.trust {
    display: flex;
    justify-content: center;
    gap: 1rem;
    list-style: none;
    margin: 1rem 0 0;
    padding: 0;
    opacity: 0.95;
    flex-wrap: wrap;
}
.trust li { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.trust i { opacity: 0.9; }

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
    position: sticky;
    top: 0;
    background: #fff;
    padding: 0.75rem 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

/* Wellen-Separator unter dem Hero */
.wave-separator { line-height: 0; background: #fff; }
.wave-separator__svg { display: block; width: 100%; height: 80px; }

.nav__list {
    display: flex;
    justify-content: center;
    list-style: none;
}

.nav__item {
    margin: 0 1.5rem;
}

.nav__link {
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.nav__link:hover,
.nav__link:focus {
    color: var(--primary-light);
    transform: scale(1.1);
}

/* ==========================================================================
   Sektionen
   ========================================================================== */
.section {
    padding: 4rem 0;
}

/* Erstes Section direkt unter der Navigation straffen */
.nav + main .section:first-child { padding-top: 1.5rem; }

.section--alt { background: #fff; }

.section__title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-dark);
}

.section__text {
    max-width: 800px;
    margin: 0 auto 2rem;
    text-align: center;
}

/* Services */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service {
    background: #fff;
    padding: 2rem;
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(0,0,0,.06), 0 2px 6px rgba(0,0,0,.05);
    transition: var(--transition);
    border: 1px solid transparent;
}

.service:hover {
    transform: translateY(-8px);
    box-shadow: 0 18px 40px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.08);
    border-color: var(--card-border);
    background: linear-gradient(#fff, #fff) padding-box,
                linear-gradient(135deg, rgba(255,255,255,0), var(--card-hover)) border-box;
}
.pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}
.price-card {
    background: #fff;
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: 0 12px 28px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
    border: 1px solid rgba(0,0,0,.06);
    text-align: left;
    display: flex;
    flex-direction: column;
}
.price-card--highlight {
    border-color: rgba(16,185,129,.4);
    box-shadow: 0 16px 36px rgba(16,185,129,.15), 0 2px 6px rgba(0,0,0,.06);
}
.badge-pill {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    max-width: 100%;
    white-space: nowrap;
    background: rgba(16,185,129,.12);
    color: #0f9f7e;
    border: 1px solid rgba(16,185,129,.35);
    padding: .15rem .5rem;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 700;
    margin-bottom: .5rem;
    align-self: flex-start;
}
.price-card__title { font-size: 1.25rem; color: var(--primary-dark); margin-bottom: .25rem; }
.price-card__subtitle { color: #555; margin-bottom: .75rem; }
.price-card__list { list-style: none; padding: 0; margin: 0 0 1rem 0; }
.price-card__list li { padding-left: 1.25rem; position: relative; margin-bottom: .5rem; }
.price-card__list li::before { content: '\2713'; position: absolute; left: 0; top: 0; color: var(--primary-light); }
.price-card__cta-hint { color: #2a2a2a; margin-bottom: .75rem; font-weight: 600; }
.price-card__range { color: #1f2937; font-weight: 700; margin-bottom: .25rem; }
.price-card__note { color: #374151; font-size: .95rem; margin-bottom: .75rem; opacity: .95; }
.pricing-note { text-align: center; max-width: 900px; margin: 1rem auto 0; opacity: .9; }

/* Button am unteren Kartenrand mittig zentrieren */
.price-card .btn { align-self: center; margin-top: auto; }

/* Buttons in Preis-Karten mit klarem Kontrast */
.price-card .btn--primary {
    background: var(--primary-light);
    color: #fff;
    border: 2px solid var(--primary-light);
}
.price-card .btn--primary:hover,
.price-card .btn--primary:focus { background: var(--primary-dark); border-color: var(--primary-dark); }

.price-card .btn--secondary {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary-light);
}
.price-card .btn--secondary:hover,
.price-card .btn--secondary:focus { background: var(--primary-light); color: #fff; }

/* Vereinskarte: grüne Hervorhebung */
.price-card--highlight .btn--primary { background: #10b981; border-color: #10b981; color: #fff; }
.price-card--highlight .btn--primary:hover,
.price-card--highlight .btn--primary:focus { background: #0f9f7e; border-color: #0f9f7e; }

.service__title {
    color: var(--primary-light);
    margin-bottom: 1rem;
}

.service__icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-light);
    margin-bottom: 0.75rem;
    box-shadow: inset 0 0 0 1px var(--card-border);
}
.service__icon i { font-size: 1.2rem; }

/* Akzente pro Karte über CSS-Variablen */
.service--design { --accent: var(--accent-blue); --accent-soft: rgba(59,130,246,.12); --accent-border: rgba(59,130,246,.28); }
.service--dev { --accent: var(--accent-purple); --accent-soft: rgba(139,92,246,.12); --accent-border: rgba(139,92,246,.28); }
.service--support { --accent: var(--accent-green); --accent-soft: rgba(16,185,129,.12); --accent-border: rgba(16,185,129,.28); }
.service--seo { --accent: var(--accent-orange); --accent-soft: rgba(245,158,11,.12); --accent-border: rgba(245,158,11,.28); }
.service--shop { --accent: var(--accent-teal); --accent-soft: rgba(6,182,212,.12); --accent-border: rgba(6,182,212,.28); }
.service--perf { --accent: var(--accent-red); --accent-soft: rgba(239,68,68,.12); --accent-border: rgba(239,68,68,.28); }
.service--hosting { --accent: var(--accent-slate); --accent-soft: rgba(100,116,139,.12); --accent-border: rgba(100,116,139,.28); }
.service--security { --accent: var(--accent-cyan); --accent-soft: rgba(14,165,233,.12); --accent-border: rgba(14,165,233,.28); }

.service.service--design .service__title,
.service.service--dev .service__title,
.service.service--support .service__title,
.service.service--seo .service__title,
.service.service--shop .service__title,
.service.service--perf .service__title,
.service.service--hosting .service__title,
.service.service--security .service__title { color: var(--accent); }

.service.service--design .service__icon,
.service.service--dev .service__icon,
.service.service--support .service__icon,
.service.service--seo .service__icon,
.service.service--shop .service__icon,
.service.service--perf .service__icon,
.service.service--hosting .service__icon,
.service.service--security .service__icon {
    background: var(--accent-soft);
    color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent-border);
}

.service.service--design:hover,
.service.service--dev:hover,
.service.service--support:hover,
.service.service--seo:hover,
.service.service--shop:hover,
.service.service--perf:hover,
.service.service--hosting:hover,
.service.service--security:hover {
    border-color: var(--accent-border);
    background: linear-gradient(#fff, #fff) padding-box,
                linear-gradient(135deg, rgba(255,255,255,0), var(--accent-soft)) border-box;
}

/* etwas dunklerer Fließtext für mehr Lesbarkeit */
.service p { color: #2a2a2a; }

/* Vorteile */
.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}
.benefit {
    background: #fff;
    border-radius: 10px;
    padding: 1.25rem;
    box-shadow: var(--shadow);
}
.benefit__icon { color: var(--primary-light); font-size: 1.25rem; margin-bottom: 0.5rem; }
.benefit h3 { margin-bottom: 0.25rem; }
.benefit p { opacity: 0.9; }

/* Prozess */
.process { list-style: none; padding: 0; max-width: 800px; margin: 0 auto; }
.process__step { background: #fff; border-radius: 8px; padding: 1rem 1.25rem; box-shadow: var(--shadow); display: flex; align-items: center; gap: 0.75rem; }
.process__step + .process__step { margin-top: 0.75rem; }
.badge { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: var(--primary-light); color: #fff; font-weight: 800; }

/* Testimonials */
.testimonials { max-width: 900px; margin: 0 auto; position: relative; }
.testimonial { background: #fff; border-left: 4px solid var(--primary-light); padding: 1rem 1.25rem; border-radius: 8px; box-shadow: var(--shadow); opacity: 0; transition: opacity .5s ease; position: absolute; left: 0; right: 0; top: 0; visibility: hidden; pointer-events: none; }
.testimonial.is-active { opacity: 1; visibility: visible; pointer-events: auto; }
.testimonial:nth-child(even) { border-left-color: #10b981; background: #fbfefe; }
.testimonial:nth-child(odd) { background: #ffffff; }
.testimonial blockquote { font-style: italic; margin-bottom: 0.5rem; }
.testimonial figcaption { opacity: 0.8; font-size: 0.95rem; }

.center { text-align: center; }
.testimonials__cta { margin-top: 3rem; }

/* Mehr Luft unterhalb der Testimonials insgesamt */
.section #referenzen, #referenzen .testimonials { margin-bottom: 0.5rem; }

/* FAQ */
.faq { max-width: 900px; margin: 0 auto; }
.faq__item { background: #fff; border-radius: 8px; box-shadow: var(--shadow); padding: 1rem 1.25rem; }
.faq__item + .faq__item { margin-top: 0.75rem; }
.faq__item summary { cursor: pointer; font-weight: 700; color: var(--primary-dark); }
.faq__item p { margin-top: 0.5rem; }

/* Final CTA */
.cta-final .btn { margin-top: 0.5rem; }
.cta-final .btn.btn--primary {
    background: var(--primary-light);
    color: #fff;
    border: 2px solid var(--primary-light);
}
.cta-final .btn.btn--primary:hover,
.cta-final .btn.btn--primary:focus {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* Button in Kontakt-Sektion blau machen */
#kontakt .btn--primary {
    background: var(--primary-light);
    color: #fff;
    border: 2px solid var(--primary-light);
}
#kontakt .btn--primary:hover,
#kontakt .btn--primary:focus {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

/* Kontaktformular */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

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

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color var(--transition);
}

.form-input:focus {
    border-color: var(--primary-light);
    outline: none;
}

.form-input[type="textarea"] {
    resize: vertical;
    min-height: 150px;
}

.form-button {
    background: var(--primary-light);
    color: #fff;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

.form-button:hover,
.form-button:focus {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.form-feedback {
    margin-top: 1em;
    padding: 1.2em 1em 1.2em 3em;
    border-radius: 6px;
    font-weight: bold;
    font-size: 1.1em;
    box-shadow: 0 2px 8px #0001;
    position: relative;
    background-repeat: no-repeat;
    background-position: 1em center;
    background-size: 1.5em 1.5em;
    transition: opacity 0.5s;
    opacity: 1;
}

.form-feedback.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-feedback.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.auto-hide-feedback.hide {
    opacity: 0;
    pointer-events: none;
}

.portfolio-btn {
    background: var(--primary-light);
    color: #fff;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.portfolio-btn:hover,
.portfolio-btn:focus {
    background: var(--primary-dark);
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--primary-dark);
    color: #fff;
    text-align: center;
    padding: 2rem 0;
}

.footer a[href="https://portfolio.web-klu.de/index.html"] {
    color: #fff !important;
    text-decoration: none !important;
    font-weight: 600;
    transition: color 0.2s;
}

.footer a[href="https://portfolio.web-klu.de/index.html"]:hover,
.footer a[href="https://portfolio.web-klu.de/index.html"]:focus {
    color: #b3b3b3 !important;
    text-decoration: none !important;
}

.footer a[data-cookie-settings] {
    color: #fff !important;
    text-decoration: none !important;
    font-weight: 600;
    transition: color 0.2s;
    cursor: pointer;
}

.footer a[data-cookie-settings]:hover,
.footer a[data-cookie-settings]:focus {
    color: #b3b3b3 !important;
    text-decoration: underline !important;
}

/* ==========================================================================
   Animationen
   ========================================================================== */
[data-animate="fade-in-down"] {
    animation: fadeInDown 1s ease forwards;
}

[data-animate="fade-in"] {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

[data-animate="slide-up"] {
    opacity: 0;
    animation: slideUp 0.8s ease forwards;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-2rem); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(3rem); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Kontakt-Fragebogen Modal
   ========================================================================== */
.contact-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    box-sizing: border-box;
}

.contact-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.contact-modal__content {
    position: relative;
    background: #fff;
    border-radius: 12px;
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 10001;
    animation: modalSlideIn 0.3s ease;
    margin: 0 auto;
    left: auto;
    right: auto;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.contact-modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: #666;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 10002;
}

.contact-modal__close:hover {
    background: #f0f0f0;
    color: #333;
}

.contact-modal__header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid #eee;
}

.contact-modal__header h2 {
    margin: 0 0 0.5rem 0;
    color: var(--primary-dark);
    font-size: 1.75rem;
}

.contact-modal__header p {
    margin: 0;
    color: #666;
    font-size: 0.95rem;
}

.questionnaire-form {
    padding: 2rem;
}

.questionnaire-progress {
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.questionnaire-progress__bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-light), var(--primary-dark));
    transition: width 0.3s ease;
    width: 0%;
}

.questionnaire-steps {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
    transition: var(--transition);
}

.step-dot.active {
    background: var(--primary-light);
    transform: scale(1.3);
}

.step-dot.completed {
    background: var(--primary-dark);
}

.questionnaire-step {
    display: none;
}

.questionnaire-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.questionnaire-step h3 {
    margin: 0 0 1.5rem 0;
    color: var(--primary-dark);
    font-size: 1.5rem;
}

.questionnaire-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

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

.questionnaire-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.questionnaire-form input[type="text"],
.questionnaire-form input[type="email"],
.questionnaire-form input[type="tel"],
.questionnaire-form input[type="url"],
.questionnaire-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    box-sizing: border-box;
}

.questionnaire-form input:focus,
.questionnaire-form textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

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

.questionnaire-form .form-group.error {
    animation: shake 0.3s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.radio-label:hover,
.checkbox-label:hover {
    border-color: var(--primary-light);
    background: rgba(52, 152, 219, 0.05);
}

.radio-label input[type="radio"],
.checkbox-label input[type="checkbox"] {
    margin-right: 0.75rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
    flex-shrink: 0;
}

.radio-label input[type="radio"]:checked + span,
.checkbox-label input[type="checkbox"]:checked + span {
    font-weight: 600;
    color: var(--primary-dark);
}

.radio-label input[type="radio"]:checked,
.checkbox-label input[type="checkbox"]:checked {
    accent-color: var(--primary-light);
}

/* Styling für checked state - wird per JavaScript ergänzt */
.radio-label.checked,
.checkbox-label.checked {
    border-color: var(--primary-light);
    background: rgba(52, 152, 219, 0.1);
}

.questionnaire-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

.questionnaire-buttons .btn {
    min-width: 150px;
    padding: 0.85rem 1.5rem;
}

.questionnaire-buttons .questionnaire-prev {
    order: 1;
}

.questionnaire-buttons .questionnaire-next,
.questionnaire-buttons button[type="submit"] {
    order: 2;
}

.questionnaire-buttons .btn--primary {
    background: var(--primary-light);
    color: #fff;
    border: 2px solid var(--primary-light);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.2);
}

.questionnaire-buttons .btn--primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

.questionnaire-buttons .btn--secondary {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary-light);
    font-weight: 700;
}

.questionnaire-buttons .btn--secondary:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    .header {
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 0;
    }
    .header .container {
        padding: 2rem 1rem;
    }
    .header__logo {
        margin-bottom: 2rem;
    }
    .header__title-main { font-size: 1.6rem; }
    .header__subtitle {
        font-size: 1rem;
        max-width: 90vw;
    }
    .nav__list { flex-direction: column; align-items: center; }
    .nav__item { margin: 0.75rem 0; }
    .nav {
        position: static;
        top: auto;
        z-index: auto;
        box-shadow: var(--shadow);
        background: #fff;
    }
    
    .contact-modal__content {
        max-height: 95vh;
        border-radius: 8px;
    }
    
    .contact-modal__header {
        padding: 1.5rem 1rem 1rem;
    }
    
    .contact-modal__header h2 {
        font-size: 1.5rem;
    }
    
    .questionnaire-form {
        padding: 1.5rem 1rem;
    }
    
    .questionnaire-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .questionnaire-buttons {
        flex-direction: column;
        justify-content: flex-end;
    }
    
    .questionnaire-buttons .btn {
        width: 100%;
        min-width: auto;
    }
    
    .questionnaire-buttons .btn--primary {
        order: 2;
    }
    
    .questionnaire-buttons .btn--secondary {
        order: 1;
    }
}