/* ──────────────────────────────────────────────────────────────────────────
   components.css – Navbar, Footer, Buttons, Cards, Forms
   ────────────────────────────────────────────────────────────────────────── */

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2.25rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    border-radius: 999px;
    transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    text-decoration: none;
    border: 2px solid transparent;
    white-space: nowrap;
    letter-spacing: -0.01em;
}
.btn--primary {
    background: var(--color-accent-2);
    color: white;
}
.btn--primary:hover {
    background: #c92d3a;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn--secondary {
    background: transparent;
    color: white;
    border-color: rgba(255,255,255,0.3);
}
.btn--secondary:hover {
    background: rgba(255,255,255,0.1);
    color: white;
    border-color: white;
}
.btn--accent {
    background: var(--color-accent);
    color: white;
}
.btn--accent:hover {
    background: #0099b8;
    color: white;
    transform: translateY(-2px);
}
.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-border);
}
.btn--outline:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.btn--block { width: 100%; }
.btn--sm { padding: 0.5rem 1rem; font-size: 0.9rem; }
.btn .icon { width: 1.1em; height: 1.1em; }

/* ── Navigation ─────────────────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: background var(--transition), padding var(--transition);
}
.navbar.scrolled {
    background: rgba(26, 26, 46, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.75rem 0;
}
.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}
.navbar__logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: white;
    letter-spacing: -0.01em;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}
.navbar__logo:hover { color: var(--color-accent); }
.navbar__logo span { color: var(--color-accent); }
.navbar__logo img { height: 40px; width: auto; display: block; }

.navbar__nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.navbar__nav a {
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}
.navbar__nav a:hover { color: white; }
.navbar__nav a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}
.navbar__nav a:hover::after,
.navbar__nav a.active::after { width: 100%; }
.navbar__nav a.active { color: white; }

.navbar__toggle {
    display: none;
    width: 40px; height: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.navbar__toggle span {
    display: block;
    width: 24px; height: 2px;
    background: white;
    transition: all var(--transition);
}
.navbar__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
    .navbar__toggle { display: flex; }
    .navbar__nav {
        position: fixed;
        top: 0; right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        background: var(--color-primary);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        gap: 1.5rem;
        transition: right 300ms ease;
        box-shadow: -10px 0 40px rgba(0,0,0,0.3);
    }
    .navbar__nav.open { right: 0; }
    .navbar__nav a { font-size: 1.25rem; }
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.footer {
    background: var(--color-primary);
    color: rgba(255,255,255,0.7);
    padding: 4rem 0 1.5rem;
    margin-top: auto;
}
.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
@media (max-width: 768px) {
    .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
}
.footer__col h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.75rem; }
.footer__col a { color: rgba(255,255,255,0.7); }
.footer__col a:hover { color: var(--color-accent); }
.footer__brand p { color: rgba(255,255,255,0.6); margin: 1rem 0; font-size: 0.95rem; }
.footer__social { display: flex; gap: 1rem; margin-top: 1rem; }
.footer__social a {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.footer__social a:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}
.footer__social svg { width: 18px; height: 18px; }
.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.875rem;
}
.footer__bottom-links { display: flex; gap: 1.5rem; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-card);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.card__stripe {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--stripe-color, var(--color-accent));
}
.card__icon {
    width: 56px; height: 56px;
    border-radius: 12px;
    background: var(--icon-bg, rgba(0, 180, 216, 0.1));
    color: var(--icon-color, var(--color-accent));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}
.card__icon svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: 0.75rem; }
.card p { margin-bottom: 1rem; }
.card ul.checklist { margin: 0 0 1.5rem 0; }
.card ul.checklist li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-muted);
}
.card ul.checklist li::before {
    content: '✓';
    position: absolute;
    left: 0; top: 0;
    color: var(--stripe-color, var(--color-accent));
    font-weight: 700;
}
.card__cta {
    color: var(--stripe-color, var(--color-accent));
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: gap var(--transition);
}
.card__cta:hover { gap: 0.6rem; color: var(--stripe-color, var(--color-accent)); }

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
@media (max-width: 900px) { .cards-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cards-grid { grid-template-columns: 1fr; } }
.cards-grid--3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
@media (max-width: 900px) {
    .cards-grid--3 { grid-template-columns: 1fr; }
}

/* ── Badge ──────────────────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.9rem;
    background: rgba(0, 180, 216, 0.12);
    color: var(--color-accent);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
}
.badge--light {
    background: rgba(255,255,255,0.15);
    color: white;
}

/* ── Forms ──────────────────────────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: 1.25rem; }
.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}
@media (max-width: 640px) { .form__row { grid-template-columns: 1fr; } }
.form__field { display: flex; flex-direction: column; gap: 0.4rem; }
.form__field label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}
.form__field input,
.form__field select,
.form__field textarea {
    padding: 0.875rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-btn);
    background: white;
    transition: border-color var(--transition), box-shadow var(--transition);
    font-family: var(--font-body);
}
.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}
.form__field textarea { resize: vertical; min-height: 140px; }
.form__check {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    cursor: pointer;
}
.form__check input[type=checkbox] {
    margin-top: 0.25rem;
    width: 18px; height: 18px;
    flex-shrink: 0;
    accent-color: var(--color-accent);
}
.form__check-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}
.form__check-group label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all var(--transition);
    background: white;
}
.form__check-group label:has(input:checked) {
    border-color: var(--color-accent);
    background: rgba(0, 180, 216, 0.06);
    color: var(--color-accent);
    font-weight: 600;
}
/* Fehlerzustand bei Pflichtfeld-Validierung */
.form__field--error label {
    color: var(--color-accent-2);
}
.form__field--error input,
.form__field--error select,
.form__field--error textarea {
    border-color: var(--color-accent-2);
    background: rgba(230, 57, 70, 0.04);
}
.form__field--error input:focus,
.form__field--error select:focus,
.form__field--error textarea:focus {
    border-color: var(--color-accent-2);
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
}
/* Datenschutz-Checkbox-Label rot markieren */
.form__check.form__field--error {
    color: var(--color-accent-2);
}
.form__check.form__field--error input[type=checkbox] {
    outline: 2px solid var(--color-accent-2);
    outline-offset: 2px;
    border-radius: 2px;
}

.form-feedback {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-btn);
    font-size: 0.95rem;
    display: none;
}
.form-feedback--success {
    display: block;
    background: rgba(46, 196, 182, 0.12);
    color: #1a8579;
    border: 1px solid rgba(46, 196, 182, 0.3);
}
.form-feedback--error {
    display: block;
    background: rgba(230, 57, 70, 0.1);
    color: #b81f2a;
    border: 1px solid rgba(230, 57, 70, 0.3);
}

/* ── Breadcrumb ─────────────────────────────────────────────────────────── */
.breadcrumb {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 1.5rem;
}
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: white; }
.breadcrumb span { margin: 0 0.5rem; opacity: 0.5; }

/* ── CTA-Sektion ────────────────────────────────────────────────────────── */
.cta-section {
    background: radial-gradient(ellipse at center, #1f2049 0%, #050510 100%);
    color: white;
    text-align: center;
    padding: clamp(5rem, 12vw, 9rem) 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 80vw; height: 80vw;
    max-width: 900px; max-height: 900px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.18) 0%, transparent 60%);
    pointer-events: none;
    filter: blur(40px);
}
.cta-section h2 {
    color: white;
    margin-bottom: 1.5rem;
    position: relative;
    font-size: clamp(2.25rem, 5.5vw, 4rem);
    background: linear-gradient(180deg, #ffffff 0%, #b8c4d6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.cta-section p {
    color: rgba(255,255,255,0.75);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    position: relative;
    font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}
.cta-section .btn { position: relative; }