/* ════════════════════════════════════════════════════════════════
   Diabetisches Fußsyndrom Online – Design System
   Marke übernommen aus der bestehenden Fuß-Oase Landingpage.
   ════════════════════════════════════════════════════════════════ */

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

:root {
    --blue: #38bad2;
    --blue-deep: #2a9ab0;
    --blue-light: #e8f7fa;
    --blue-glow: rgba(56, 186, 210, 0.15);
    --orange: #f5a623;
    --orange-warm: #ff9f43;
    --orange-light: #fff8ee;
    --orange-glow: rgba(245, 166, 35, 0.12);
    --text: #1a2a32;
    --text-mid: #3d5a68;
    --text-light: #6b8a97;
    --bg: #fdfdfd;
    --white: #ffffff;
    --green: #2e9e6b;
    --shadow-sm: 0 2px 8px rgba(26, 42, 50, 0.06);
    --shadow-md: 0 8px 30px rgba(26, 42, 50, 0.08);
    --shadow-lg: 0 16px 50px rgba(26, 42, 50, 0.1);
    --radius: 12px;
    --radius-lg: 20px;
    --serif: 'DM Serif Display', Georgia, serif;
    --sans: 'Source Sans 3', 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--sans);
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
    font-size: 17px;
    font-weight: 400;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ─── Utility ─── */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ─── Grain Overlay ─── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.018;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 200px;
}

/* ─── Scroll Animations ───
   Inhalt ist standardmäßig sichtbar. Nur wenn JS aktiv ist (html.js),
   wird er für die Einblende-Animation kurz versteckt – so bleibt die
   Seite ohne JavaScript voll lesbar. */
.js .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1), transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}
.js .reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
@media (prefers-reduced-motion: reduce) {
    .reveal, .js .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ─── Nav ─── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(56, 186, 210, 0.1);
    transition: box-shadow 0.3s ease;
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(26, 42, 50, 0.08); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-brand {
    font-family: var(--serif);
    font-size: 1.15rem;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.01em;
}
.nav-brand span { color: var(--blue); }
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: var(--blue);
    color: white;
    border: none;
    border-radius: 50px;
    font-family: var(--sans);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s ease;
}
.nav-cta:hover { background: var(--blue-deep); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(56, 186, 210, 0.3); }

/* ─── Primary Button ─── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: var(--orange);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-family: var(--sans);
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 4px 20px rgba(245, 166, 35, 0.25);
    letter-spacing: 0.01em;
}
.btn-primary:hover { background: var(--orange-warm); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245, 166, 35, 0.35); }
.btn-primary svg { width: 18px; height: 18px; }
.btn-ghost {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 30px;
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
    border-radius: 50px;
    font-weight: 600; font-size: 1rem; text-decoration: none;
    transition: all 0.25s ease;
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }

/* ─── Hero ─── */
.hero {
    padding: 150px 0 110px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(165deg, var(--white) 0%, var(--blue-light) 50%, var(--white) 100%);
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    height: 80px;
    background: var(--bg);
    clip-path: ellipse(55% 100% at 50% 100%);
}
.hero-deco {
    position: absolute; width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, var(--blue-glow), transparent 70%);
    top: -100px; right: -150px; pointer-events: none;
}
.hero-deco-2 {
    position: absolute; width: 300px; height: 300px; border-radius: 50%;
    background: radial-gradient(circle, var(--orange-glow), transparent 70%);
    bottom: 60px; left: -80px; pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px;
    background: var(--white);
    border: 1px solid rgba(56, 186, 210, 0.2);
    border-radius: 50px;
    font-size: 0.82rem; font-weight: 600; color: var(--blue-deep);
    letter-spacing: 0.01em;
}
.hero-badge svg { width: 14px; height: 14px; flex-shrink: 0; color: var(--blue); }
.hero h1 {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    line-height: 1.15; color: var(--text);
    margin-bottom: 14px; letter-spacing: -0.02em;
}
.hero h1 em { font-style: italic; color: var(--blue); }
.hero-sub {
    font-size: 1.25rem; color: var(--text-mid);
    margin-bottom: 36px; font-weight: 400; line-height: 1.5; max-width: 640px;
}
.hero-cta-row { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.hero-cta-note { font-size: 0.9rem; color: var(--text-light); }
.hero-trust { margin-top: 40px; display: flex; gap: 28px; flex-wrap: wrap; }
.hero-trust-item { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-mid); }
.hero-trust-item svg { width: 20px; height: 20px; color: var(--blue); flex-shrink: 0; }

/* ─── Sections ─── */
section { padding: 90px 0; }
.section-head { max-width: 680px; }
.section-head.center { margin: 0 auto; text-align: center; }
.section-label {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px;
    background: var(--blue-light); color: var(--blue-deep);
    border-radius: 50px;
    font-size: 0.8rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px;
}
.section-title {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    line-height: 1.2; color: var(--text);
    margin-bottom: 16px; letter-spacing: -0.01em;
}
.section-desc { font-size: 1.1rem; color: var(--text-mid); line-height: 1.7; }

/* ─── Problem / Emotion ─── */
.problem { background: var(--white); position: relative; }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.problem-visual {
    position: relative; padding: 48px;
    background: linear-gradient(135deg, var(--blue-light), var(--orange-light));
    border-radius: var(--radius-lg); text-align: center;
}
.problem-visual-icon {
    width: 80px; height: 80px; margin: 0 auto 24px;
    background: var(--white); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-md);
}
.problem-visual-icon svg { width: 38px; height: 38px; color: var(--blue); }
.problem-visual blockquote {
    font-family: var(--serif); font-size: 1.45rem; font-style: italic;
    color: var(--text); line-height: 1.4;
}
.problem-visual cite { display: block; margin-top: 16px; font-size: 0.95rem; font-style: normal; color: var(--text-light); }

/* ─── Checklist (Lerninhalte) ─── */
.learn { background: linear-gradient(170deg, var(--bg) 0%, var(--blue-light) 100%); position: relative; }
.learn::before {
    content: ''; position: absolute; top: -2px; left: 0; right: 0; height: 60px;
    background: var(--white); clip-path: ellipse(55% 100% at 50% 0%);
}
.check-list { list-style: none; margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.check-list li {
    display: flex; align-items: flex-start; gap: 14px;
    background: var(--white); padding: 20px 22px;
    border-radius: var(--radius);
    border: 1px solid rgba(56, 186, 210, 0.1);
    font-size: 1.02rem; color: var(--text-mid);
    transition: all 0.25s ease;
}
.check-list li:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.check-list .check-ic {
    width: 26px; height: 26px; flex-shrink: 0;
    background: var(--blue-light); color: var(--blue-deep);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.check-list .check-ic svg { width: 15px; height: 15px; }

/* ─── Audience ─── */
.audience { background: var(--white); }
.audience-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px; margin-top: 40px;
}
.audience-card {
    background: var(--bg); padding: 28px 24px; border-radius: var(--radius);
    text-align: center; transition: all 0.3s ease; border: 1px solid rgba(56, 186, 210, 0.08);
}
.audience-card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.audience-card-emoji { font-size: 2rem; line-height: 1; margin-bottom: 12px; }
.audience-card h3 { font-family: var(--serif); font-size: 1.12rem; margin-bottom: 4px; font-weight: 400; }
.audience-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.5; }

/* ─── Value / Mehrwert ─── */
.value { background: linear-gradient(170deg, var(--blue-light) 0%, var(--white) 100%); }
.value-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px; }
.value-card {
    background: var(--white); border-radius: var(--radius-lg); padding: 36px 32px;
    border: 1px solid rgba(56, 186, 210, 0.1); box-shadow: var(--shadow-sm);
}
.value-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.value-card-icon {
    width: 48px; height: 48px; border-radius: 14px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--blue-light);
}
.value-card-icon svg { width: 24px; height: 24px; color: var(--blue); }
.value-card.warm .value-card-icon { background: var(--orange-light); }
.value-card.warm .value-card-icon svg { color: var(--orange-warm); }
.value-card h3 { font-family: var(--serif); font-size: 1.4rem; font-weight: 400; }
.value-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.value-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 1.02rem; color: var(--text-mid); }
.value-list li svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--green); margin-top: 3px; }

/* ─── Process ─── */
.process { background: var(--white); }
.process-steps { display: flex; gap: 12px; margin-top: 48px; position: relative; }
.process-steps::before {
    content: ''; position: absolute; top: 32px; left: 32px; right: 32px; height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--orange)); border-radius: 2px; z-index: 0;
}
.process-step { flex: 1; text-align: center; position: relative; z-index: 1; }
.process-num {
    width: 64px; height: 64px; margin: 0 auto 16px;
    background: var(--white); border: 3px solid var(--blue); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--serif); font-size: 1.4rem; color: var(--blue); font-weight: 700;
}
.process-step:last-child .process-num { border-color: var(--orange); color: var(--orange); }
.process-step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.process-step p { font-size: 0.9rem; color: var(--text-light); line-height: 1.5; }
.process-note {
    margin: 40px auto 0; max-width: 540px; text-align: center;
    background: var(--orange-light); border-radius: var(--radius);
    padding: 16px 24px; font-size: 0.95rem; color: var(--text-mid);
}
.process-note strong { color: var(--orange-warm); }

/* ─── CTA Band ─── */
.cta-band {
    background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue) 100%);
    color: var(--white); text-align: center; position: relative; overflow: hidden;
}
.cta-band::after {
    content: ''; position: absolute; width: 480px; height: 480px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%);
    top: -160px; right: -120px; pointer-events: none;
}
.cta-band .cta-inner { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }
.cta-band h2 {
    font-family: var(--serif); font-size: clamp(1.8rem, 4vw, 2.6rem);
    line-height: 1.2; margin-bottom: 14px;
}
.cta-band p { font-size: 1.15rem; color: rgba(255,255,255,0.9); margin-bottom: 32px; }
.cta-band .btn-primary { box-shadow: 0 8px 30px rgba(0,0,0,0.2); }
.cta-band .cta-sub { margin-top: 18px; font-size: 0.9rem; color: rgba(255,255,255,0.8); }

/* ─── Angebot / Preis ─── */
.offer { background: linear-gradient(170deg, var(--white) 0%, var(--blue-light) 100%); }
.btn-block { display: flex; width: 100%; justify-content: center; }
.offer-card {
    max-width: 560px; margin: 44px auto 0;
    background: var(--white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); border: 1px solid rgba(56, 186, 210, 0.15);
    overflow: hidden;
}
.offer-top {
    text-align: center; padding: 36px 32px 30px;
    background: linear-gradient(135deg, var(--blue-light), var(--orange-light));
}
.offer-eyebrow {
    display: inline-block; padding: 6px 16px; margin-bottom: 16px;
    background: var(--white); color: var(--blue-deep);
    border-radius: 50px; font-size: 0.78rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em;
}
.offer-price { font-family: var(--serif); font-size: 3.6rem; line-height: 1; color: var(--text); }
.offer-price .cur { font-size: 2rem; vertical-align: 6px; margin-left: 4px; }
.offer-price-note { color: var(--text-light); font-size: 0.9rem; margin-top: 10px; }
.offer-body { padding: 30px 34px 34px; }
.offer-list { list-style: none; display: flex; flex-direction: column; gap: 13px; margin-bottom: 28px; }
.offer-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 1.02rem; color: var(--text-mid); }
.offer-list li svg { width: 21px; height: 21px; flex-shrink: 0; color: var(--green); margin-top: 3px; }
.offer-note { text-align: center; margin-top: 16px; font-size: 0.85rem; color: var(--text-light); }
@media (max-width: 720px) {
    .offer-price { font-size: 3rem; }
    .offer-body { padding: 26px 22px 28px; }
}

/* ─── FAQ ─── */
.faq { background: var(--white); }
.faq-list { max-width: 760px; margin: 40px auto 0; }
.faq-item { border-bottom: 1px solid #e8ecf0; }
.faq-question {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    padding: 22px 0; background: none; border: none;
    font-family: var(--sans); font-size: 1.08rem; font-weight: 600; color: var(--text);
    cursor: pointer; text-align: left; gap: 16px;
}
.faq-question:hover { color: var(--blue-deep); }
.faq-icon {
    width: 32px; height: 32px; flex-shrink: 0; border-radius: 50%;
    background: var(--blue-light); display: flex; align-items: center; justify-content: center;
    transition: transform 0.3s ease;
}
.faq-icon svg { width: 16px; height: 16px; color: var(--blue); }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s cubic-bezier(0.23, 1, 0.32, 1); }
.faq-answer-inner { padding: 0 0 22px; font-size: 1rem; color: var(--text-mid); line-height: 1.7; }

/* ─── Footer ─── */
.footer { background: var(--text); color: rgba(255, 255, 255, 0.6); padding: 48px 0 32px; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 32px; }
.footer-brand { font-family: var(--serif); font-size: 1.2rem; color: var(--white); margin-bottom: 8px; }
.footer-brand span { color: var(--blue); }
.footer-info p { font-size: 0.9rem; line-height: 1.7; }
.footer-info a { color: var(--blue); text-decoration: none; }
.footer-info a:hover { text-decoration: underline; }
.footer-links { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; }
.footer-links a { color: rgba(255, 255, 255, 0.6); text-decoration: none; font-size: 0.9rem; transition: color 0.2s ease; }
.footer-links a:hover { color: var(--white); }
.footer-copy {
    margin-top: 32px; padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.82rem; text-align: center; line-height: 1.6;
}

/* ─── Sticky Mobile CTA ─── */
.mobile-cta {
    display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 95;
    padding: 12px 16px; padding-bottom: max(12px, env(safe-area-inset-bottom));
    background: var(--white); border-top: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
}
.mobile-cta a {
    display: block; padding: 14px; text-align: center;
    background: var(--orange); color: white; border-radius: 50px;
    text-decoration: none; font-weight: 700; font-size: 1rem;
}

/* ─── Cookie Consent ─── */
.consent {
    position: fixed; bottom: 16px; left: 16px; right: 16px; z-index: 200;
    max-width: 960px; margin: 0 auto;
    background: var(--white); border: 1px solid rgba(56, 186, 210, 0.25);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
    padding: 22px 26px;
}
.consent[hidden] { display: none; }
.consent-inner { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.consent-text { flex: 1; min-width: 260px; }
.consent-text strong { display: block; font-size: 1.02rem; margin-bottom: 4px; color: var(--text); }
.consent-text p { font-size: 0.9rem; color: var(--text-light); line-height: 1.55; }
.consent-text a { color: var(--blue-deep); text-decoration: underline; }
.consent-actions { display: flex; gap: 12px; flex-shrink: 0; }
.consent-btn {
    padding: 12px 26px; border-radius: 50px; font-family: var(--sans);
    font-size: 0.95rem; font-weight: 700; cursor: pointer; border: none; transition: all 0.2s ease;
}
.consent-decline { background: var(--bg); color: var(--text-mid); border: 1px solid #e0e6ea; }
.consent-decline:hover { background: #eef1f3; }
.consent-accept { background: var(--blue); color: #fff; }
.consent-accept:hover { background: var(--blue-deep); }

/* ─── Legal pages (Impressum / Datenschutz) ─── */
.legal { padding: 130px 0 90px; }
.legal h1 { font-family: var(--serif); font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: 8px; }
.legal .legal-lead { color: var(--text-light); margin-bottom: 36px; }
.legal h2 {
    font-family: var(--serif); font-size: 1.35rem; font-weight: 400;
    margin: 34px 0 10px; color: var(--text);
}
.legal h3 { font-size: 1.05rem; font-weight: 700; margin: 22px 0 6px; }
.legal p, .legal li { color: var(--text-mid); margin-bottom: 12px; line-height: 1.75; }
.legal ul { margin: 0 0 12px 22px; }
.legal a { color: var(--blue-deep); }
.legal .placeholder {
    background: var(--orange-light); border-left: 4px solid var(--orange);
    padding: 12px 16px; border-radius: 8px; font-size: 0.92rem; color: var(--text-mid);
}
.legal .back-link { display: inline-block; margin-top: 40px; color: var(--blue-deep); text-decoration: none; font-weight: 600; }
.legal .back-link:hover { text-decoration: underline; }

/* ─── Responsive ─── */
@media (max-width: 900px) {
    .problem-grid { grid-template-columns: 1fr; gap: 32px; }
    .value-grid { grid-template-columns: 1fr; }
    .process-steps { flex-direction: column; gap: 24px; }
    .process-steps::before { display: none; }
    .process-step { text-align: left; display: flex; gap: 16px; align-items: center; }
    .process-num { margin: 0; flex-shrink: 0; width: 52px; height: 52px; font-size: 1.2rem; }
    .process-step > div { flex: 1; }
}

@media (max-width: 720px) {
    body { font-size: 16px; }
    section { padding: 64px 0; }
    .hero { padding: 120px 0 80px; }
    .hero h1 { font-size: 2rem; }
    .hero-sub { font-size: 1.1rem; }
    .check-list { grid-template-columns: 1fr; }
    .audience-grid { grid-template-columns: 1fr 1fr; }
    .nav-cta { padding: 9px 16px; font-size: 0.82rem; }
    .nav-brand { font-size: 1rem; }
    .footer-inner { flex-direction: column; }
    .mobile-cta { display: block; }
    .consent { left: 10px; right: 10px; bottom: 10px; padding: 18px 18px 86px; }
    .consent-actions { width: 100%; }
    .consent-btn { flex: 1; }
}

@media (max-width: 420px) {
    .audience-grid { grid-template-columns: 1fr; }
    .hero-cta-row { flex-direction: column; align-items: stretch; }
    .hero .btn-primary { justify-content: center; }
}