/* ============================================================
   Tag der offenen Tür – COLIBRIS-Brillenmanufaktur
   Farben & Schriften nach Brand: colibris.eu + Einladungs-PDF
   Alle Fonts werden lokal geladen (keine externen Requests).
   ============================================================ */

/* ── Lokale Schriften ─────────────────────────────────────── */

@font-face {
    font-family: "Cassia-ExtraLight";
    src: url("../fonts/cassia.woff2") format("woff2"),
         url("../fonts/cassia.woff") format("woff");
    font-display: swap;
}
@font-face {
    font-family: "Libre Franklin";
    font-style: normal;
    font-weight: 300;
    src: url("../fonts/libre-franklin-v7-latin-300.woff2") format("woff2"),
         url("../fonts/libre-franklin-v7-latin-300.woff") format("woff");
    font-display: swap;
}
@font-face {
    font-family: "Libre Franklin";
    font-style: italic;
    font-weight: 300;
    src: url("../fonts/libre-franklin-v7-latin-300italic.woff2") format("woff2"),
         url("../fonts/libre-franklin-v7-latin-300italic.woff") format("woff");
    font-display: swap;
}
@font-face {
    font-family: "Libre Franklin";
    font-style: normal;
    font-weight: 400;
    src: url("../fonts/libre-franklin-v7-latin-regular.woff2") format("woff2"),
         url("../fonts/libre-franklin-v7-latin-regular.woff") format("woff");
    font-display: swap;
}
@font-face {
    font-family: "Libre Franklin";
    font-style: normal;
    font-weight: 600;
    src: url("../fonts/libre-franklin-v7-latin-600.woff2") format("woff2"),
         url("../fonts/libre-franklin-v7-latin-600.woff") format("woff");
    font-display: swap;
}

/* ── Design-Tokens ────────────────────────────────────────── */

:root {
    --navy:  #182D61;   /* Headline-/Logoblau aus dem Einladungs-PDF   */
    --cream: #FBF1D9;   /* Papierton des Einladungsbriefs              */
    --blue:  #457CBE;   /* Akzentblau der colibris.eu-Website          */
    --ink:   #0D0D0D;   /* Fließtext wie auf colibris.eu               */
    --paper: #FFFFFF;
    --line:  #E4DCC8;

    --font-sans:  "Libre Franklin", Arial, "Helvetica Neue", sans-serif;
    --font-serif: "Cassia-ExtraLight", "Times New Roman", serif;

    --wrap: 1140px;
}

/* ── Basis ────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--blue); }
a:hover { color: var(--navy); }

.wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 1.25rem;
}
.wrap-narrow { max-width: 760px; }

section[id], [id="anmeldung"] { scroll-margin-top: 90px; }

/* ── Überschriften im Stil von colibris.eu ────────────────── */

h2 {
    margin: 0 0 1.5rem;
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: clamp(1.5rem, 3vw, 1.85rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink);
    line-height: 1.2;
}
h2::after {
    content: "";
    display: block;
    width: 110px;
    height: 5px;
    margin-top: 1rem;
    background: var(--blue);
}
h2.on-dark { color: var(--cream); }
h2.on-dark::after { background: var(--cream); }

h3 {
    margin: 0 0 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--navy);
}

/* ── Header ───────────────────────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid #eee;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
}
.logo-link img { width: 190px; height: auto; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.main-nav a {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--navy);
}
.main-nav a:hover { color: var(--blue); }
.main-nav .nav-cta {
    padding: 0.55em 1.2em;
    border: 1.5px solid var(--navy);
    border-radius: 2px;
    transition: background 0.2s, color 0.2s;
}
.main-nav .nav-cta:hover {
    background: var(--navy);
    color: var(--cream);
}

/* ── Hero ─────────────────────────────────────────────────── */

.hero {
    background: var(--cream);
    overflow: hidden;
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: center;
    padding-top: clamp(2.5rem, 6vw, 5rem);
    padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.kicker {
    margin: 0 0 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.45em;
    text-transform: uppercase;
    color: var(--navy);
}

.hero-title {
    margin: 0;
    font-family: var(--font-serif);
    font-weight: normal;
    font-size: clamp(3rem, 8vw, 5.5rem);
    line-height: 1.02;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--navy);
}

.hero-sub {
    margin: 0.75rem 0 2rem;
    font-size: clamp(1.35rem, 3vw, 1.9rem);
    font-weight: 300;
    color: var(--navy);
}

.hero-date {
    margin: 0 0 2rem;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--navy);
}
.hero-date strong {
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-note {
    margin: 1.25rem 0 0;
    font-size: 0.875rem;
    color: var(--navy);
    opacity: 0.75;
}

.hero-media img {
    border-radius: 3px;
    box-shadow: 0 24px 60px rgba(24, 45, 97, 0.22);
    aspect-ratio: 11 / 13;
    object-fit: cover;
}

/* ── Buttons ──────────────────────────────────────────────── */

.btn {
    display: inline-block;
    padding: 0.9em 1.9em;
    border: 1.5px solid var(--navy);
    border-radius: 2px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary {
    background: var(--navy);
    color: var(--cream);
}
.btn-primary:hover {
    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
}
.btn-ghost {
    background: transparent;
    color: var(--navy);
}
.btn-ghost:hover {
    background: var(--navy);
    color: var(--cream);
}

/* ── Inhalts-Sektionen ────────────────────────────────────── */

.section {
    padding: clamp(3rem, 7vw, 5.5rem) 0;
}
.section-alt { background: #F4F7F6; }

.cols {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.55;
    color: var(--navy);
    margin-top: 0;
}

.signature em {
    font-style: italic;
    color: var(--navy);
}

.col-media img {
    border-radius: 3px;
    box-shadow: 0 16px 40px rgba(24, 45, 97, 0.15);
}
.col-media figcaption {
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: #666;
}
figure { margin: 0; }

/* ── Programm-Karten ──────────────────────────────────────── */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.25rem;
}
.card {
    background: var(--paper);
    border: 1px solid #E8ECEB;
    border-radius: 3px;
    padding: 1.75rem 1.5rem;
}
.card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.1rem;
    color: var(--navy);
}
.card-icon svg { width: 100%; height: 100%; }
.card p { margin: 0; font-size: 0.9375rem; }

/* ── Eckdaten-Band ────────────────────────────────────────── */

.keyfacts {
    background: var(--cream);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.keyfacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    padding-top: 2.75rem;
    padding-bottom: 2.75rem;
}
.fact-label {
    margin: 0 0 0.4rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--blue);
}
.fact-value {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.3rem;
    line-height: 1.35;
    color: var(--navy);
}
.fact-link {
    display: inline-block;
    margin-top: 0.6rem;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-decoration: none;
}

/* ── Anmeldung ────────────────────────────────────────────── */

.section-signup {
    background: var(--navy);
    color: var(--cream);
}
.signup-intro {
    max-width: 60ch;
    margin: 0 0 2rem;
    color: var(--cream);
}
.signup-intro strong { font-weight: 600; }

.signup-form {
    background: var(--paper);
    color: var(--ink);
    border-radius: 4px;
    padding: clamp(1.5rem, 4vw, 2.5rem);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.field { margin-bottom: 1.4rem; }
.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.field label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--navy);
}
.optional { font-weight: 300; color: #777; }

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select,
.field textarea {
    width: 100%;
    padding: 0.75em 0.9em;
    border: 1px solid #C9CFD8;
    border-radius: 2px;
    background: #fff;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 300;
    color: var(--ink);
}
.field textarea { resize: vertical; }

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: 2px solid var(--blue);
    outline-offset: 1px;
    border-color: var(--blue);
}

.has-error input,
.has-error select { border-color: #B4453A; }
.field-error {
    margin: 0.35rem 0 0;
    font-size: 0.8125rem;
    font-weight: 400;
    color: #B4453A;
}

.field-consent { font-size: 0.9375rem; }
.checkbox {
    display: flex;
    gap: 0.7rem;
    align-items: flex-start;
    font-weight: 300 !important;
    letter-spacing: 0 !important;
    color: var(--ink) !important;
    cursor: pointer;
}
.checkbox input {
    margin-top: 0.3em;
    width: 1.05em;
    height: 1.05em;
    accent-color: var(--navy);
    flex-shrink: 0;
}

.btn-submit {
    width: 100%;
    margin-top: 0.5rem;
    font-size: 1rem;
}
.form-footnote {
    margin: 0.9rem 0 0;
    font-size: 0.8125rem;
    color: #777;
    text-align: center;
}

/* Honeypot: für Menschen unsichtbar */
.hp-field {
    position: absolute !important;
    left: -9999px !important;
    width: 1px; height: 1px;
    overflow: hidden;
}

/* Hinweis-Boxen */
.notice {
    border-radius: 4px;
    padding: 1.5rem 1.75rem;
    background: var(--paper);
    color: var(--ink);
}
.notice h3 { margin-top: 0; }
.notice p:last-child { margin-bottom: 0; }
.notice-success { border-left: 6px solid #3E7C4F; }
.notice-info    { border-left: 6px solid var(--blue); }
.notice-error   {
    border-left: 6px solid #B4453A;
    margin-bottom: 1.5rem;
}

/* ── Footer ───────────────────────────────────────────────── */

.site-footer {
    background: var(--cream);
    border-top: 1px solid var(--line);
}
.footer-inner {
    padding-top: 3rem;
    padding-bottom: 3rem;
    text-align: center;
}
.footer-brand {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 2.2rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--navy);
    line-height: 1;
}
.footer-claim {
    margin: 0.3rem 0 1.5rem;
    font-size: 1rem;
    color: var(--navy);
}
.footer-address {
    margin: 0 0 1rem;
    font-size: 0.875rem;
    color: var(--ink);
}
.footer-nav {
    font-size: 0.875rem;
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}
.footer-nav a {
    color: var(--navy);
    font-weight: 400;
}

/* ── Responsive ───────────────────────────────────────────── */

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-media { order: -1; }
    .hero-media img {
        aspect-ratio: 16 / 10;
        object-position: center 62%;
    }
    .cols { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .header-inner {
        flex-direction: column;
        gap: 0.6rem;
    }
    .main-nav { gap: 1rem; }
    .field-row { grid-template-columns: 1fr; gap: 0; }
    section[id], [id="anmeldung"] { scroll-margin-top: 130px; }
}