/* ============================================================
   SING & SPRICH – Stylesheet
   Warm · modern · professionell
   Farbwelt: Grün + Braun + Gold/Platin-Highlights auf Creme
   ============================================================ */

/* ---------- 1. Design-Variablen (hier Farben zentral ändern) ---------- */
:root {
    /* Grün */
    --green-900: #1e3d33;
    --green-700: #2f5d4e;
    --green-500: #4a7c65;
    --green-300: #8fb4a0;
    --green-100: #dce9e1;

    /* Braun / Erdtöne */
    --brown-700: #5a4231;
    --brown-500: #8a6d52;
    --brown-300: #c3a988;

    /* Gold / Platin Highlights */
    --gold:      #c9a24b;
    --gold-soft: #e0c583;
    --platin:    #d8d8ce;

    /* Neutrale / Creme */
    --cream:     #f7f4ee;
    --cream-2:   #efe9df;
    --ink:       #2a2620;
    --ink-soft:  #574f45;
    --white:     #ffffff;

    /* Funktion */
    --radius:    18px;
    --radius-sm: 12px;
    --shadow:    0 12px 40px rgba(30, 61, 51, 0.10);
    --shadow-sm: 0 6px 18px rgba(30, 61, 51, 0.08);
    --maxw:      1140px;
    --font-head: 'Fraunces', Georgia, serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

/* ---------- 2. Grundlagen ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--cream);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; font-weight: 600; color: var(--green-900); }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { color: var(--ink-soft); }
a { color: var(--green-700); text-decoration: none; transition: color .2s; }
a:hover { color: var(--gold); }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

section { padding: clamp(48px, 8vw, 96px) 0; }
.section-tag {
    display: inline-block; font-family: var(--font-body); font-weight: 600;
    letter-spacing: .12em; text-transform: uppercase; font-size: .78rem;
    color: var(--brown-500); margin-bottom: 12px;
}
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head p { font-size: 1.1rem; margin-top: 14px; }

/* ---------- 3. Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 9px;
    font-family: var(--font-body); font-weight: 600; font-size: 1rem;
    padding: 14px 26px; border-radius: 100px; border: 2px solid transparent;
    cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: .92rem; }
.btn-primary {
    background: linear-gradient(135deg, var(--green-700), var(--green-500));
    color: var(--white); box-shadow: 0 8px 22px rgba(47, 93, 78, .28);
}
.btn-primary:hover { color: var(--white); box-shadow: 0 12px 28px rgba(47, 93, 78, .38); }
.btn-gold {
    background: linear-gradient(135deg, var(--gold), var(--gold-soft));
    color: var(--green-900); box-shadow: 0 8px 22px rgba(201, 162, 75, .32);
}
.btn-gold:hover { color: var(--green-900); }
.btn-ghost { background: transparent; border-color: var(--green-300); color: var(--green-700); }
.btn-ghost:hover { background: var(--green-100); color: var(--green-900); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- 4. Navigation ---------- */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(247, 244, 238, .85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--cream-2);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 1.35rem; color: var(--green-900); }
.brand-mark { font-size: 1.5rem; }
.brand:hover { color: var(--green-900); }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { font-weight: 500; color: var(--ink); }
.site-nav a:hover { color: var(--gold); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--green-900); border-radius: 2px; transition: .3s; }

/* ---------- 5. Hero ---------- */
.hero {
    position: relative;
    background:
        radial-gradient(1200px 500px at 80% -10%, var(--green-100), transparent 60%),
        radial-gradient(900px 500px at -10% 110%, #efe6d4, transparent 55%),
        var(--cream);
    padding-top: clamp(40px, 6vw, 72px);
    overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--white); border: 1px solid var(--platin);
    padding: 7px 16px; border-radius: 100px; font-size: .85rem; font-weight: 600;
    color: var(--brown-700); box-shadow: var(--shadow-sm); margin-bottom: 22px;
}
.hero h1 { margin-bottom: 18px; }
.hero h1 .accent { color: var(--gold); font-style: italic; }
.hero-lead { font-size: 1.22rem; max-width: 540px; margin-bottom: 30px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 26px; }
.hero-proof { display: flex; gap: 26px; flex-wrap: wrap; }
.hero-proof div { }
.hero-proof strong { display: block; font-family: var(--font-head); font-size: 1.6rem; color: var(--green-700); }
.hero-proof span { font-size: .88rem; color: var(--ink-soft); }

/* Hero-Illustration (Karten-Stapel mit Klängen) */
.hero-visual { position: relative; }
.hero-card {
    background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 26px; border: 1px solid var(--cream-2);
}
.hero-card .wave { display: flex; align-items: flex-end; gap: 5px; height: 60px; margin: 18px 0; }
.hero-card .wave span {
    flex: 1; background: linear-gradient(var(--green-500), var(--green-300));
    border-radius: 4px; animation: bounce 1.4s ease-in-out infinite;
}
.hero-card .wave span:nth-child(odd) { animation-delay: .2s; }
.hero-card .wave span:nth-child(3n) { animation-delay: .4s; background: linear-gradient(var(--gold), var(--gold-soft)); }
@keyframes bounce { 0%,100% { height: 26%; } 50% { height: 100%; } }
.hero-chip {
    position: absolute; background: var(--white); box-shadow: var(--shadow);
    border-radius: 100px; padding: 10px 18px; font-weight: 600; font-size: .9rem;
    border: 1px solid var(--cream-2); display: flex; align-items: center; gap: 8px;
}
.hero-chip--1 { top: -18px; left: -14px; color: var(--green-700); }
.hero-chip--2 { bottom: -16px; right: -10px; color: var(--brown-700); }

/* ---------- 6. Problem-Sektion ---------- */
.problem { background: var(--green-900); color: var(--cream); }
.problem h2 { color: var(--white); }
.problem .section-head p { color: var(--green-100); }
.problem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; max-width: 900px; margin: 0 auto; }
.problem-card {
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius); padding: 26px; display: flex; gap: 16px; align-items: flex-start;
}
.problem-card .x { font-size: 1.4rem; }
.problem-card h3 { color: var(--gold-soft); font-size: 1.15rem; margin-bottom: 6px; }
.problem-card p { color: var(--green-100); }
.problem-switch { text-align: center; margin-top: 42px; }
.problem-switch p { color: var(--gold-soft); font-family: var(--font-head); font-size: 1.4rem; font-style: italic; }

/* ---------- 7. Methode (Schritte) ---------- */
.method { background: var(--cream); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step {
    background: var(--white); border-radius: var(--radius); padding: 30px 26px;
    box-shadow: var(--shadow-sm); border: 1px solid var(--cream-2); position: relative;
    transition: transform .2s, box-shadow .2s;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.step-num {
    width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
    font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; color: var(--white);
    background: linear-gradient(135deg, var(--green-700), var(--green-500)); margin-bottom: 16px;
}
.step:nth-child(2) .step-num,
.step:nth-child(5) .step-num { background: linear-gradient(135deg, var(--brown-500), var(--brown-300)); }
.step:nth-child(3) .step-num,
.step:nth-child(6) .step-num { background: linear-gradient(135deg, var(--gold), var(--gold-soft)); color: var(--green-900); }
.step h3 { margin-bottom: 8px; }
.step .emoji { font-size: 1.6rem; position: absolute; top: 26px; right: 26px; opacity: .9; }

/* ---------- 8. Sprachen ---------- */
.langs { background: linear-gradient(var(--cream), var(--cream-2)); }
.lang-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 22px; }
.lang-card {
    background: var(--white); border-radius: var(--radius); padding: 28px 24px;
    box-shadow: var(--shadow-sm); border: 1px solid var(--cream-2); text-align: left;
    transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column; gap: 8px;
}
.lang-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--gold-soft); }
.lang-flag { font-size: 2.6rem; }
.lang-card h3 { color: var(--green-900); }
.lang-card p { font-size: .95rem; flex-grow: 1; }
.lang-card .lang-go { margin-top: 10px; font-weight: 600; color: var(--gold); }

/* ---------- 9. Feature-/Vorteile ---------- */
.features { background: var(--cream); }
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.feat {
    display: flex; gap: 16px; align-items: flex-start;
    background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm);
    border: 1px solid var(--cream-2);
}
.feat .ic {
    flex: 0 0 auto; width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
    font-size: 1.4rem; background: var(--green-100);
}
.feat h3 { font-size: 1.1rem; margin-bottom: 4px; }
.feat p { font-size: .95rem; }

/* ---------- 10. Newsletter ---------- */
.newsletter {
    background:
        radial-gradient(700px 300px at 90% 10%, rgba(201,162,75,.18), transparent 60%),
        var(--green-900);
    color: var(--cream);
}
.newsletter h2 { color: var(--white); }
.newsletter .section-head p { color: var(--green-100); }
.nl-form { max-width: 520px; margin: 0 auto; display: flex; gap: 12px; flex-wrap: wrap; }
.nl-form input[type=email] {
    flex: 1; min-width: 220px; padding: 15px 20px; border-radius: 100px; border: none;
    font-size: 1rem; font-family: var(--font-body); background: var(--cream);
}
.nl-consent { max-width: 520px; margin: 16px auto 0; font-size: .8rem; color: var(--green-100); display: flex; gap: 8px; align-items: flex-start; }
.nl-consent a { color: var(--gold-soft); text-decoration: underline; }
.nl-msg { max-width: 520px; margin: 16px auto 0; text-align: center; font-weight: 600; }

/* ---------- 11. Install-Banner (PWA) ---------- */
.install-banner {
    position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%);
    background: var(--white); box-shadow: var(--shadow); border: 1px solid var(--cream-2);
    border-radius: 100px; padding: 10px 12px 10px 22px; display: none; align-items: center; gap: 16px;
    z-index: 200; max-width: 92vw;
}
.install-banner.show { display: flex; animation: slideUp .4s ease; }
.install-banner p { font-weight: 600; color: var(--ink); font-size: .95rem; }
.install-banner .close { background: none; border: none; font-size: 1.3rem; cursor: pointer; color: var(--ink-soft); }
@keyframes slideUp { from { opacity: 0; transform: translate(-50%, 30px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------- 12. App-Bereich (Lernbereich) ---------- */
.app-hero { background: linear-gradient(var(--green-100), var(--cream)); padding: clamp(40px,6vw,70px) 0 30px; }
.app-hero h1 { margin-bottom: 10px; }

.lang-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin: 28px 0 6px; }
.lang-tab {
    display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 100px;
    background: var(--white); border: 1px solid var(--cream-2); font-weight: 600; cursor: pointer;
    color: var(--ink); transition: .2s;
}
.lang-tab:hover { border-color: var(--gold-soft); }
.lang-tab.active { background: var(--green-700); color: var(--white); border-color: var(--green-700); }

.lesson-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; margin-top: 26px; }
.lesson-card {
    background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-sm);
    border: 1px solid var(--cream-2); overflow: hidden; display: flex; flex-direction: column;
    transition: transform .2s, box-shadow .2s;
}
.lesson-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.lesson-card .lc-top { padding: 22px 22px 0; }
.lesson-card .lc-badges { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.badge {
    font-size: .74rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
    padding: 4px 10px; border-radius: 100px;
}
.badge-level { background: var(--green-100); color: var(--green-700); }
.badge-dur { background: var(--cream-2); color: var(--brown-700); }
.badge-done { background: var(--gold); color: var(--green-900); }
.lesson-card h3 { margin-bottom: 8px; }
.lesson-card p { font-size: .95rem; }
.lc-foot { margin-top: auto; padding: 16px 22px 22px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.lc-plays { font-size: .82rem; color: var(--ink-soft); }
.empty-hint { grid-column: 1/-1; text-align: center; color: var(--ink-soft); padding: 40px; }

/* ---------- 13. Einzel-Lektion ---------- */
.lesson-view { background: var(--cream); }
.back-link { display: inline-flex; align-items: center; gap: 6px; margin: 26px 0 6px; font-weight: 600; }
.lesson-head { margin-bottom: 24px; }
.lesson-head .lc-badges { margin: 14px 0; }

.player-wrap {
    background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
    border: 1px solid var(--cream-2); padding: 22px; margin-bottom: 26px;
}
.player-media { border-radius: var(--radius-sm); overflow: hidden; background: #000; aspect-ratio: 16/9; }
.player-media iframe, .player-media video { width: 100%; height: 100%; border: none; display: block; }
.player-media--audio { aspect-ratio: auto; background: var(--green-900); padding: 30px; display: grid; place-items: center; }
.player-media--audio audio { width: 100%; }

/* Nachsprech-Prompts (Ablauf-Hilfe) */
.practice-flow { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 12px; margin-top: 20px; }
.pf-step {
    background: var(--cream); border: 1px dashed var(--green-300); border-radius: var(--radius-sm);
    padding: 14px; text-align: center;
}
.pf-step .n { font-family: var(--font-head); font-weight: 700; color: var(--gold); }
.pf-step strong { display: block; color: var(--green-900); margin: 4px 0 2px; }
.pf-step small { color: var(--ink-soft); }

/* Text / Lyrics / Dialog */
.lesson-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.panel {
    background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-sm);
    border: 1px solid var(--cream-2); padding: 26px;
}
.panel h3 { margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.lyrics-text { font-size: 1.15rem; line-height: 2; white-space: pre-line; color: var(--ink); font-family: var(--font-head); }
.dialog-line { padding: 12px 0; border-bottom: 1px solid var(--cream-2); }
.dialog-line:last-child { border-bottom: none; }
.dialog-line .sp { font-weight: 700; color: var(--green-700); }
.dialog-line .tx { font-size: 1.1rem; color: var(--ink); }
.dialog-line .tr { font-size: .92rem; color: var(--ink-soft); font-style: italic; }
.translation-toggle { margin-bottom: 14px; }

/* Fortschritt / Selbsteinschätzung */
.progress-box {
    background: linear-gradient(135deg, var(--green-100), var(--cream));
    border: 1px solid var(--green-300); border-radius: var(--radius); padding: 26px; margin-top: 26px; text-align: center;
}
.progress-box h3 { margin-bottom: 10px; }
.progress-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.stars { display: inline-flex; gap: 6px; font-size: 1.8rem; cursor: pointer; margin: 8px 0; }
.stars span { color: var(--platin); transition: .15s; }
.stars span.on, .stars span:hover, .stars span:hover ~ span { color: var(--gold); }
/* (Hover-Logik wird per JS unterstützt) */

/* ---------- 14. Rechtstexte / einfache Seiten ---------- */
.legal { background: var(--cream); }
.legal-content { max-width: 800px; margin: 0 auto; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--cream-2); padding: clamp(28px, 5vw, 54px); }
.legal-content h1 { margin-bottom: 24px; }
.legal-content h2 { font-size: 1.35rem; margin: 30px 0 10px; }
.legal-content p, .legal-content li { margin-bottom: 12px; }
.legal-content ul { padding-left: 22px; }
.legal-content a { text-decoration: underline; }

/* Kontaktformular */
.contact-form { display: grid; gap: 16px; margin-top: 24px; }
.contact-form label { font-weight: 600; color: var(--green-900); font-size: .95rem; margin-bottom: 4px; display: block; }
.contact-form input, .contact-form textarea {
    width: 100%; padding: 13px 16px; border-radius: var(--radius-sm); border: 1px solid var(--platin);
    font-family: var(--font-body); font-size: 1rem; background: var(--cream);
}
.contact-form textarea { min-height: 150px; resize: vertical; }
.form-msg { padding: 14px 18px; border-radius: var(--radius-sm); font-weight: 600; }
.form-msg.ok { background: var(--green-100); color: var(--green-700); }
.form-msg.err { background: #f6dede; color: #a33; }

/* ---------- 15. Footer ---------- */
.site-footer { background: var(--green-900); color: var(--green-100); padding-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; padding-bottom: 40px; }
.brand--footer { color: var(--white); margin-bottom: 14px; }
.brand--footer .brand-text { color: var(--white); }
.footer-claim { color: var(--green-100); margin-bottom: 8px; }
.footer-note { color: var(--gold-soft); font-weight: 600; }
.footer-col h4 { color: var(--white); font-family: var(--font-body); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.footer-col a { display: block; color: var(--green-100); margin-bottom: 9px; font-size: .95rem; }
.footer-col a:hover { color: var(--gold-soft); }
.social-row { display: flex; flex-direction: column; gap: 9px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 22px 0; }
.footer-bottom p { color: rgba(255,255,255,.6); font-size: .85rem; margin-bottom: 4px; }
.footer-inspiration { font-size: .78rem !important; color: rgba(255,255,255,.45) !important; }

/* ---------- 16. Responsive ---------- */
@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; max-width: 420px; }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .problem-grid { grid-template-columns: 1fr; }
    .lesson-cols { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .nav-toggle { display: flex; }
    .site-nav {
        position: absolute; top: 72px; left: 0; right: 0; flex-direction: column;
        background: var(--cream); padding: 18px 22px; gap: 14px; box-shadow: var(--shadow);
        display: none; align-items: stretch;
    }
    .site-nav.open { display: flex; }
    .steps { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-proof { gap: 18px; }
}

/* Reduzierte Bewegung respektieren */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; scroll-behavior: auto !important; }
}