/* Gemeinsames Grunddesign für alle Seiten (Header, Navigation, Karten, Formulare)
   Ruhige Wasser-Optik: weicher Verlaufshintergrund, Glaskarten, blaue Akzente. */

:root {
    --wasser-tief: #2a4f68;
    --wasser: #3d7095;
    --wasser-hell: #8fbcd8;

    --tinte: #1e2f3c;
    --grau: #5f7385;
    --linie: rgba(42, 79, 104, 0.12);

    --glas: rgba(255, 255, 255, 0.72);
    --glas-stark: rgba(255, 255, 255, 0.86);
    --glas-rand: rgba(255, 255, 255, 0.7);

    --schatten: 0 8px 28px rgba(30, 58, 79, 0.09);
    --schatten-hoch: 0 14px 40px rgba(30, 58, 79, 0.14);

    --radius: 16px;
    --radius-klein: 10px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--tinte);
    line-height: 1.6;
    background-color: #eef4f9;
    background-image:
        radial-gradient(62% 45% at 10% 0%, rgba(143, 188, 216, 0.45), transparent 60%),
        radial-gradient(52% 40% at 92% 6%, rgba(190, 214, 232, 0.5), transparent 65%),
        linear-gradient(180deg, #f5f9fc 0%, #e9f0f6 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--wasser);
}

:focus-visible {
    outline: 2px solid var(--wasser);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ---------- Kopfbereich ---------- */
.brand-header {
    display: flex;
    justify-content: center;
    padding: 28px 20px 22px;
    background-color: transparent;
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    width: 100%;
    text-decoration: none;
    color: inherit;
}

.brand-logo {
    height: 72px;
    width: auto;
}

.brand-text {
    text-align: left;
}

.brand-text h1 {
    margin: 0;
    font-size: 1.65rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--wasser-tief);
    font-weight: 600;
}

.brand-text p {
    margin: 6px 0 0 0;
    font-size: 0.95rem;
    color: var(--grau);
}

/* ---------- Navigation: gläsern und klebend ---------- */
nav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px 12px;
    background: var(--glas);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border-top: 1px solid var(--glas-rand);
    border-bottom: 1px solid var(--linie);
}

nav a {
    color: var(--wasser-tief);
    padding: 9px 14px;
    border-radius: 999px;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
}

nav a:hover,
nav a:focus-visible {
    background-color: rgba(61, 112, 149, 0.12);
    color: var(--wasser-tief);
}

nav a.aktiv {
    background-color: var(--wasser);
    color: #ffffff;
}

/* ---------- Panoramabild ---------- */
.hero-banner {
    width: calc(100% - 40px);
    max-width: 1200px;
    margin: 26px auto 0;
    display: block;
    border-radius: var(--radius);
    border: 1px solid var(--glas-rand);
    box-shadow: var(--schatten);
}

.content-container {
    max-width: 1200px;
    margin: 30px auto 60px;
    padding: 0 20px;
}

/* ---------- Glaskarten ---------- */
.card {
    background: var(--glas);
    backdrop-filter: blur(14px) saturate(150%);
    -webkit-backdrop-filter: blur(14px) saturate(150%);
    border: 1px solid var(--glas-rand);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--schatten);
    margin-bottom: 22px;
    scroll-margin-top: 76px;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
    box-shadow: var(--schatten-hoch);
}

.card h2 {
    margin-top: 0;
    margin-bottom: 18px;
    font-size: 1.45rem;
    letter-spacing: -0.01em;
    color: var(--wasser-tief);
    font-weight: 600;
}

.card h3 {
    color: var(--wasser-tief);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.card p {
    line-height: 1.65;
}

.card a {
    color: var(--wasser);
}

/* ---------- Formulare ---------- */
.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

.form-group {
    margin-bottom: 18px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--wasser-tief);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--linie);
    border-radius: var(--radius-klein);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--tinte);
    background-color: rgba(255, 255, 255, 0.75);
    transition: border-color 0.2s, background-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--wasser);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(61, 112, 149, 0.15);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 20px 0;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 4px;
    accent-color: var(--wasser);
}

.checkbox-group label {
    font-weight: normal;
    font-size: 0.9rem;
    color: var(--tinte);
}

/* ---------- Schaltflächen ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--wasser);
    color: #ffffff !important;
    border: none;
    padding: 12px 22px;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(42, 79, 104, 0.22);
    transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    background-color: var(--wasser-tief);
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(42, 79, 104, 0.28);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.8);
    color: var(--wasser-tief) !important;
    border: 1px solid var(--linie);
    box-shadow: none;
}

.btn-secondary:hover {
    background-color: #ffffff;
}

.btn-danger {
    background-color: #c1544f;
    box-shadow: 0 6px 16px rgba(193, 84, 79, 0.25);
}

.btn-danger:hover {
    background-color: #a24440;
}

@media (max-width: 600px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .brand-container {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .brand-text {
        text-align: center;
    }

    .brand-text h1 {
        font-size: 1.25rem;
    }

    .card {
        padding: 22px 18px;
    }

    nav {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
        scrollbar-width: none;
    }

    nav::-webkit-scrollbar {
        display: none;
    }

    nav a {
        white-space: nowrap;
    }
}

/* ---------- Meldungen ---------- */
.alert {
    border-radius: var(--radius-klein);
    padding: 14px 18px;
    margin-bottom: 20px;
    font-size: 0.93rem;
}

.alert-success {
    background-color: rgba(232, 247, 238, 0.85);
    border: 1px solid #b6dfc7;
    color: #23543a;
}

.alert-error {
    background-color: rgba(253, 240, 239, 0.85);
    border: 1px solid #f0c0bd;
    color: #7a3230;
}

.todo-note {
    font-size: 0.85rem;
    color: #8a5a2b;
    background-color: rgba(255, 248, 240, 0.85);
    border: 1px dashed #d9b489;
    border-radius: var(--radius-klein);
    padding: 10px 14px;
    margin-top: 15px;
}

/* ---------- Scroll-Reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.sichtbar {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}