/* ========================================================================
   ciAI — main.css
   Marketing-Theme. Roboto lokal (DSGVO). Akzent Rot, Wortmarke ci(rot)AI(dunkel).
   ======================================================================== */

/* ---- Brand-Tokens ---- */
:root {
    --ci-primary:    #E2001A;
    --ci-primary-dk: #B70015;
    --ci-dark:       #1F2430;
    --ci-ink:        #2A2F3A;
    --ci-gray:       #5B6270;
    --ci-gray-2:     #6B7280;
    --ci-light:      #F5F6F8;
    --ci-white:      #FFFFFF;
    --ci-border:     #E6E8EC;

    --ci-container:  1180px;
    --ci-radius:     14px;
    --ci-radius-lg:  20px;

    --ci-shadow-sm:  0 2px 8px rgba(31,36,48,0.06);
    --ci-shadow-md:  0 14px 40px rgba(31,36,48,0.10);
}

/* ---- Roboto (selbst gehostet) ---- */
@font-face { font-family:'Roboto'; font-style:normal; font-weight:400; font-display:swap; src:url('../fonts/roboto-400.woff2') format('woff2'); }
@font-face { font-family:'Roboto'; font-style:normal; font-weight:500; font-display:swap; src:url('../fonts/roboto-500.woff2') format('woff2'); }
@font-face { font-family:'Roboto'; font-style:normal; font-weight:700; font-display:swap; src:url('../fonts/roboto-700.woff2') format('woff2'); }
@font-face { font-family:'Roboto'; font-style:normal; font-weight:900; font-display:swap; src:url('../fonts/roboto-900.woff2') format('woff2'); }

/* ---- Reset / Base ---- */
*,*::before,*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust:100%; text-size-adjust:100%; scroll-behavior:smooth; }

html body,
html body input, html body button, html body select, html body textarea {
    font-family:'Roboto', system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
}

body {
    margin:0;
    font-size:17px;
    line-height:1.6;
    color:var(--ci-ink);
    background:var(--ci-white);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}

img, svg, video { max-width:100%; height:auto; display:block; }
a { color:var(--ci-primary); text-decoration:none; }
a:hover { text-decoration:underline; }
ul, ol { margin:0; padding:0; list-style:none; }

html body h1, html body h2, html body h3, html body h4 {
    margin:0 0 .5em; font-weight:900; line-height:1.15; color:var(--ci-dark);
}

.container { width:100%; max-width:var(--ci-container); margin:0 auto; padding:0 24px; }
.content-narrow { max-width:820px; }

.section { padding:72px 0; }

.screen-reader-text {
    position:absolute !important; width:1px; height:1px; overflow:hidden;
    clip:rect(1px,1px,1px,1px); white-space:nowrap;
}
.skip-link { position:absolute; left:-9999px; }
.skip-link:focus { left:8px; top:8px; background:#fff; padding:8px 14px; z-index:1000; }

.eyebrow {
    color:var(--ci-primary); font-weight:700; font-size:.95rem;
    letter-spacing:.02em; margin:0 0 14px;
}
.eyebrow--center { text-align:center; }

.section-title {
    font-size:clamp(1.7rem, 3.5vw, 2.3rem);
    text-align:center; margin:0 auto 44px;
}
.accent { color:var(--ci-primary); }

/* ---- Brand-Wortmarke ---- */
.ciai-brand { font-weight:900; letter-spacing:-.02em; }
.ciai-brand-ci { color:var(--ci-primary); }
.ciai-brand-ai { color:var(--ci-dark); }
.site-logo--light .ciai-brand-ai { color:#fff; }

/* ---- Buttons ---- */
.btn {
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:14px 26px; border-radius:10px; font-weight:700; font-size:1rem;
    border:2px solid transparent; cursor:pointer; transition:all .15s ease;
    text-decoration:none; line-height:1;
}
.btn:hover { text-decoration:none; }
.btn-sm { padding:10px 18px; font-size:.95rem; }
.btn-block { width:100%; }
.btn-primary { background:var(--ci-primary); color:#fff; border-color:var(--ci-primary); }
.btn-primary:hover { background:var(--ci-primary-dk); border-color:var(--ci-primary-dk); color:#fff; }
.btn-ghost, .btn-outline {
    background:#fff; color:var(--ci-dark); border-color:var(--ci-border);
}
.btn-ghost:hover, .btn-outline:hover { border-color:var(--ci-dark); color:var(--ci-dark); }

/* ---- Header ---- */
.site-header {
    position:sticky; top:0; z-index:100;
    background:rgba(255,255,255,.92); backdrop-filter:saturate(180%) blur(8px);
    border-bottom:1px solid var(--ci-border);
}
.header-inner { display:flex; align-items:center; gap:32px; height:74px; }
.site-logo { font-size:1.7rem; }
.primary-nav { margin-left:auto; }
.primary-menu { display:flex; gap:30px; }
.primary-menu a {
    color:var(--ci-ink); font-weight:500; font-size:.97rem;
    letter-spacing:.04em; text-transform:uppercase; padding:6px 0;
    border-bottom:2px solid transparent;
}
.primary-menu a:hover { color:var(--ci-primary); }
.primary-menu .current-menu-item a { color:var(--ci-primary); border-bottom-color:var(--ci-primary); }
.header-actions { display:flex; align-items:center; gap:18px; }
.header-login { color:var(--ci-ink); font-weight:500; font-size:.95rem; letter-spacing:.04em; text-transform:uppercase; }
.header-login:hover { color:var(--ci-primary); text-decoration:none; }

.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(--ci-dark); border-radius:2px; }

/* ---- Hero ---- */
.hero { padding:64px 0 80px; }
.hero-grid {
    display:grid; grid-template-columns:1.05fr 1fr; gap:56px; align-items:center;
}
.hero-title { font-size:clamp(2.4rem, 5vw, 3.6rem); margin-bottom:.35em; }
.hero-lead { font-size:1.2rem; color:var(--ci-gray-2); max-width:30em; margin:0 0 32px; }
.hero-cta { display:flex; gap:14px; flex-wrap:wrap; margin-bottom:30px; }
.hero-trust { display:flex; flex-wrap:wrap; gap:22px; }
.hero-trust li { display:flex; align-items:center; gap:8px; font-weight:500; font-size:.95rem; color:var(--ci-ink); }
.trust-ico, .feat-ico { display:inline-flex; width:20px; height:20px; color:var(--ci-primary); flex:0 0 auto; }
.trust-ico svg, .feat-ico svg { width:100%; height:100%; }

/* ---- Hero Chat-Mockup ---- */
.hero-visual { display:flex; justify-content:center; }
.chat-card {
    width:100%; max-width:460px; background:#fff; border:1px solid var(--ci-border);
    border-radius:var(--ci-radius-lg); box-shadow:var(--ci-shadow-md); overflow:hidden;
}
.chat-card-head {
    display:flex; align-items:center; justify-content:space-between;
    padding:18px 20px; border-bottom:1px solid var(--ci-border);
}
.chat-card-head .site-logo { font-size:1.4rem; }
.chat-spark {
    width:38px; height:38px; border-radius:10px; background:var(--ci-primary);
    color:#fff; display:inline-flex; align-items:center; justify-content:center;
}
.chat-spark svg { width:20px; height:20px; }
.chat-card-body { display:grid; grid-template-columns:130px 1fr; min-height:300px; }
.chat-nav { border-right:1px solid var(--ci-border); padding:14px 10px; display:flex; flex-direction:column; gap:4px; background:var(--ci-light); }
.chat-nav-item {
    display:flex; align-items:center; gap:8px; padding:8px 10px; border-radius:8px;
    font-size:.82rem; color:var(--ci-gray-2); font-weight:500;
}
.chat-nav-item svg { width:15px; height:15px; }
.chat-nav-item.is-active { background:#fff; color:var(--ci-primary); box-shadow:var(--ci-shadow-sm); }
.chat-thread { padding:16px; display:flex; flex-direction:column; gap:10px; }
.chat-q { color:var(--ci-gray-2); font-size:.9rem; margin:0; }
.chat-bubble { margin:0; padding:11px 14px; border-radius:12px; font-size:.88rem; max-width:90%; }
.chat-bubble--user { align-self:flex-end; background:var(--ci-primary); color:#fff; border-bottom-right-radius:3px; }
.chat-bubble--ai { background:var(--ci-light); color:var(--ci-ink); border-bottom-left-radius:3px; display:flex; flex-direction:column; gap:7px; }
.chat-file {
    display:flex; align-items:center; gap:8px; align-self:flex-end;
    background:#fff; border:1px solid var(--ci-border); border-radius:10px;
    padding:8px 12px; font-size:.8rem; font-weight:500; margin:0;
}
.chat-file small { color:var(--ci-gray-2); font-weight:400; }
.chat-file-ico { width:24px; height:24px; color:var(--ci-primary); }
.skeleton { height:8px; border-radius:4px; background:#d7dae1; width:100%; display:block; }
.skeleton--short { width:60%; }
.chat-input {
    margin-top:auto; display:flex; align-items:center; justify-content:space-between;
    border:1px solid var(--ci-border); border-radius:12px; padding:10px 12px;
    color:var(--ci-gray-2); font-size:.85rem;
}
.chat-send {
    width:30px; height:30px; border-radius:50%; background:var(--ci-primary); color:#fff;
    display:inline-flex; align-items:center; justify-content:center;
}
.chat-send svg { width:15px; height:15px; }

/* ---- Features ---- */
.section-features { background:var(--ci-white); }
.feature-grid {
    display:grid; grid-template-columns:repeat(5,1fr); gap:20px;
}
.feature-card { text-align:center; padding:14px 12px; }
.feature-ico {
    width:54px; height:54px; margin:0 auto 16px; border-radius:14px;
    background:#FDE7E9; color:var(--ci-primary);
    display:inline-flex; align-items:center; justify-content:center;
}
.feature-ico svg { width:26px; height:26px; }
.feature-title { font-size:1.02rem; margin-bottom:.4em; }
.feature-text { font-size:.92rem; color:var(--ci-gray-2); margin:0; }

/* ---- Pricing ---- */
.section-pricing { background:var(--ci-light); }
.billing-toggle {
    display:inline-flex; gap:4px; background:#fff; border:1px solid var(--ci-border);
    border-radius:999px; padding:4px; margin:0 auto 40px; justify-self:center;
}
.section-pricing .container { display:flex; flex-direction:column; align-items:center; }
.section-pricing .section-title, .section-pricing .eyebrow { width:100%; }
.billing-opt {
    border:none; background:none; cursor:pointer; padding:9px 22px; border-radius:999px;
    font-weight:700; font-size:.92rem; color:var(--ci-gray-2);
}
.billing-opt.is-active { background:var(--ci-primary); color:#fff; }

.pricing-grid {
    display:grid; grid-template-columns:repeat(4,1fr); gap:22px; width:100%;
    align-items:stretch;
}
.pricing-grid--plans {
    grid-template-columns:repeat(2, minmax(0, 360px));
    justify-content:center;
}
.pricing-credits { text-align:center; color:var(--ci-primary); font-weight:700; font-size:.95rem; margin:-12px 0 22px; }
.pricing-incl { font-weight:700; font-size:.9rem; margin:0 0 12px; color:var(--ci-dark); }

/* Plan-Nutzer-Stepper */
.user-stepper { text-align:center; margin:0 0 18px; }
.user-stepper-label { display:block; font-size:.85rem; color:var(--ci-gray-2); margin-bottom:8px; }
.stepper { display:inline-flex; align-items:center; gap:0; border:1px solid var(--ci-border); border-radius:10px; overflow:hidden; }
.stepper-btn {
    width:40px; height:40px; border:none; background:#fff; cursor:pointer;
    font-size:1.2rem; color:var(--ci-primary); line-height:1;
}
.stepper-btn:hover { background:var(--ci-light); }
.stepper-input { width:54px; height:40px; border:none; border-left:1px solid var(--ci-border); border-right:1px solid var(--ci-border); text-align:center; font-weight:700; font-size:1rem; }

/* Optionale Erweiterungen */
.addons { margin-top:64px; }
.addons-title { text-align:center; font-size:1.5rem; margin-bottom:.3em; }
.addons-sub { text-align:center; color:var(--ci-gray-2); margin:0 0 36px; }
.addons-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; align-items:stretch; }
.addon-card {
    background:#fff; border:1px solid var(--ci-border); border-radius:var(--ci-radius);
    padding:26px 24px; display:flex; flex-direction:column; box-shadow:var(--ci-shadow-sm);
}
.addon-ico {
    width:48px; height:48px; border-radius:12px; background:#FDE7E9; color:var(--ci-primary);
    display:inline-flex; align-items:center; justify-content:center; margin-bottom:16px;
}
.addon-ico svg { width:22px; height:22px; }
.addon-name { font-size:1.1rem; text-transform:uppercase; letter-spacing:.02em; margin-bottom:.5em; }
.addon-desc { font-size:.9rem; color:var(--ci-gray-2); margin:0 0 18px; }
.addon-field { display:block; margin-bottom:14px; }
.addon-field-label { display:block; font-size:.85rem; font-weight:500; margin-bottom:7px; }
.addon-select {
    width:100%; padding:11px 14px; border:1px solid var(--ci-border); border-radius:10px;
    font-size:.95rem; background:#fff; cursor:pointer; appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat:no-repeat; background-position:right 12px center; background-size:18px;
}
.addon-avg {
    background:var(--ci-light); border-radius:10px; text-align:center;
    padding:10px; margin:0 0 10px; font-size:.9rem; color:var(--ci-gray-2);
}
.addon-avg-val { color:var(--ci-primary); font-weight:700; }
.addon-total {
    background:var(--ci-light); border-radius:10px; text-align:center;
    padding:16px; margin:0 0 18px; line-height:1;
}
.addon-total-cur { font-size:.9rem; color:var(--ci-gray-2); font-weight:700; }
.addon-total-val { font-size:2rem; font-weight:900; color:var(--ci-dark); }
.addon-total-per { font-size:.85rem; color:var(--ci-gray-2); }
.addon-features { display:flex; flex-direction:column; gap:11px; margin:0 0 18px; flex:1; }
.addon-features li { display:flex; align-items:flex-start; gap:9px; font-size:.9rem; }
.addon-request-price { text-align:center; font-weight:700; color:var(--ci-primary); margin:0 0 16px; padding:12px; background:var(--ci-light); border-radius:10px; }
.addon-card .btn { margin-top:auto; }
.addons-vat { text-align:center; color:var(--ci-gray-2); font-size:.85rem; margin:28px 0 0; }
.pricing-card {
    position:relative; background:#fff; border:1px solid var(--ci-border);
    border-radius:var(--ci-radius); padding:30px 24px; display:flex; flex-direction:column;
    box-shadow:var(--ci-shadow-sm);
}
.pricing-card.is-featured {
    border-color:var(--ci-primary); box-shadow:var(--ci-shadow-md);
    padding-top:42px;
}
.pricing-badge {
    position:absolute; top:0; left:0; right:0; background:var(--ci-primary); color:#fff;
    text-align:center; font-size:.8rem; font-weight:700; padding:7px;
    border-radius:var(--ci-radius) var(--ci-radius) 0 0;
}
.pricing-name { text-align:center; font-size:1.25rem; margin-bottom:.2em; }
.pricing-tagline { text-align:center; color:var(--ci-gray-2); font-size:.85rem; margin:0 0 18px; }
.pricing-price { text-align:center; margin:0 0 22px; display:flex; align-items:baseline; justify-content:center; gap:5px; }
.pricing-cur { font-size:.95rem; color:var(--ci-gray-2); font-weight:700; }
.pricing-amount { font-size:2.6rem; font-weight:900; color:var(--ci-dark); line-height:1; }
.pricing-amount--text { font-size:2rem; }
.pricing-per { font-size:.85rem; color:var(--ci-gray-2); }
.pricing-features { display:flex; flex-direction:column; gap:11px; margin:0 0 24px; flex:1; }
.pricing-features li { display:flex; align-items:flex-start; gap:9px; font-size:.9rem; }
.pricing-note {
    display:flex; align-items:center; gap:8px; justify-content:center;
    margin:34px 0 0; color:var(--ci-gray-2); font-size:.92rem;
}

/* ---- FAQ ---- */
.faq-list { display:flex; flex-direction:column; gap:12px; }
.faq-item { border:1px solid var(--ci-border); border-radius:12px; background:#fff; overflow:hidden; }
.faq-q {
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 22px; font-weight:700; cursor:pointer; list-style:none; color:var(--ci-dark);
}
.faq-q::-webkit-details-marker { display:none; }
.faq-chevron {
    width:11px; height:11px; border-right:2px solid var(--ci-gray-2);
    border-bottom:2px solid var(--ci-gray-2); transform:rotate(45deg);
    transition:transform .2s ease; flex:0 0 auto;
}
.faq-item[open] .faq-chevron { transform:rotate(-135deg); }
.faq-a { padding:0 22px 20px; color:var(--ci-gray-2); }

/* ---- CTA-Band ---- */
.section-cta-band { padding:40px 0 80px; }
.cta-band {
    display:flex; align-items:center; gap:24px; flex-wrap:wrap;
    background:var(--ci-light); border:1px solid var(--ci-border);
    border-radius:var(--ci-radius-lg); padding:34px 40px;
}
.cta-spark {
    width:60px; height:60px; border-radius:16px; background:#FDE7E9; color:var(--ci-primary);
    display:inline-flex; align-items:center; justify-content:center; flex:0 0 auto;
}
.cta-spark svg { width:28px; height:28px; }
.cta-copy { flex:1; min-width:240px; }
.cta-copy h2 { font-size:1.4rem; margin-bottom:.2em; }
.cta-copy p { margin:0; color:var(--ci-gray-2); }
.cta-band .btn { margin-left:auto; }

/* ---- Footer ---- */
.site-footer { background:var(--ci-dark); color:#C7CBD4; }
.footer-grid {
    display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr; gap:30px;
    padding:56px 24px;
}
.footer-brand .site-logo { font-size:1.7rem; display:inline-block; margin-bottom:14px; }
.footer-tagline { font-size:.92rem; color:#9aa0ad; margin:0; }
.footer-heading { color:#fff; font-size:.95rem; text-transform:uppercase; letter-spacing:.04em; margin:0 0 14px; }
.footer-links { display:flex; flex-direction:column; gap:9px; }
.footer-links a { color:#C7CBD4; font-size:.92rem; }
.footer-links a:hover { color:#fff; text-decoration:none; }
.footer-swiss { display:flex; flex-direction:column; gap:10px; }
.swiss-badge { display:flex; align-items:center; gap:9px; margin:0; font-size:.9rem; }
.footer-ico { display:inline-flex; width:18px; height:18px; color:var(--ci-primary); }
.footer-ico svg { width:100%; height:100%; }
.swiss-flag {
    width:18px; height:18px; border-radius:3px; background:var(--ci-primary); position:relative; flex:0 0 auto;
}
.swiss-flag::before, .swiss-flag::after {
    content:""; position:absolute; background:#fff;
}
.swiss-flag::before { width:9px; height:3px; top:7.5px; left:4.5px; }
.swiss-flag::after { width:3px; height:9px; top:4.5px; left:7.5px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.08); }
.footer-bottom-inner { padding:20px 24px; text-align:center; }
.footer-copyright { margin:0; font-size:.86rem; color:#9aa0ad; }
.footer-copyright .ciai-brand-ai { color:#fff; }
.footer-credit-link { color:#C7CBD4; }

/* ---- Page-Entry ---- */
.entry { padding:48px 0; }
.entry-title { font-size:2rem; }
.section-404 { padding:100px 0; }

/* ---- Responsive ---- */
@media (max-width:1020px) {
    .feature-grid { grid-template-columns:repeat(3,1fr); row-gap:34px; }
    .pricing-grid { grid-template-columns:repeat(2,1fr); }
    .addons-grid { grid-template-columns:1fr 1fr; }
    .footer-grid { grid-template-columns:1fr 1fr 1fr; }
}
@media (max-width:860px) {
    .hero-grid { grid-template-columns:1fr; gap:40px; }
    .hero-visual { order:-1; }
    .primary-nav, .header-actions { display:none; }
    .nav-toggle { display:flex; margin-left:auto; }
    body.nav-open .primary-nav {
        display:block; position:absolute; top:74px; left:0; right:0; background:#fff;
        border-bottom:1px solid var(--ci-border); box-shadow:var(--ci-shadow-md);
    }
    body.nav-open .primary-menu { flex-direction:column; gap:0; padding:10px 24px; }
    body.nav-open .primary-menu li { padding:6px 0; border-bottom:1px solid var(--ci-border); }
}
@media (max-width:620px) {
    .section { padding:52px 0; }
    .feature-grid { grid-template-columns:1fr 1fr; }
    .pricing-grid, .pricing-grid--plans { grid-template-columns:1fr; }
    .addons-grid { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr 1fr; }
    .cta-band { flex-direction:column; text-align:center; }
    .cta-band .btn { margin:0; }
    .chat-card-body { grid-template-columns:1fr; }
    .chat-nav { flex-direction:row; flex-wrap:wrap; border-right:none; border-bottom:1px solid var(--ci-border); }
}