/* Učtuj.cz – veřejné stránky */

/* Hlavička */
.site-header {
    position: sticky;
    top: 0;
    z-index: 500;
    background: color-mix(in srgb, var(--bg-base) 92%, transparent);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: saturate(1.2) blur(6px);
}
.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 68px;
}
.site-header .brand .beta-stamp { margin-left: 4px; }
.site-nav { display: flex; gap: 4px; }
.site-nav a {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}
.site-nav a:hover { color: var(--text-main); background: var(--bg-sunken); }
.site-nav a.active { color: var(--text-main); font-weight: 600; }
.site-actions { display: flex; align-items: center; gap: 8px; }

.mobile-menu { display: none; position: relative; }
.mobile-menu summary {
    list-style: none;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-main);
}
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu-panel {
    position: absolute;
    right: 0;
    top: 48px;
    min-width: 220px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    display: flex;
    flex-direction: column;
}
.mobile-menu-panel a { padding: 10px 12px; border-radius: var(--radius-sm); font-weight: 500; }
.mobile-menu-panel a:hover { background: var(--bg-sunken); }

@media (max-width: 900px) {
    .site-nav { display: none; }
    .mobile-menu { display: block; }
}
@media (max-width: 560px) {
    .hide-sm { display: none !important; }
    .site-header .brand .beta-stamp { display: none; }
    .site-actions .btn { padding: 9px 12px; font-size: 0.88rem; }
}

/* Společné sekce */
.section { padding: 88px 0; }
.section + .section { border-top: 1px solid var(--border-color); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800; margin-bottom: 12px; }
.section-head p { color: var(--text-muted); font-size: 1.08rem; }
.lead { font-size: 1.15rem; color: var(--text-muted); line-height: 1.6; }

/* Úvod */
.hero { padding: 72px 0 88px; overflow-x: clip; }
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 64px;
    align-items: center;
}
.hero h1 {
    font-size: clamp(2.3rem, 5vw, 3.6rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 22px;
    max-width: 13ch;
}
.hero .lead { max-width: 46ch; margin-bottom: 30px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.hero-cta .btn { padding: 13px 22px; font-size: 1rem; }
.hero-note { font-size: 0.9rem; color: var(--text-muted); }

/* Ukázková faktura – list papíru s razítkem */
.sheet-wrap { position: relative; padding: 12px 0 12px 12px; }
.sheet {
    position: relative;
    background: #fff;
    color: #1b2420;
    border: 1px solid #d8ddd5;
    border-radius: 4px;
    padding: 30px 30px 26px;
    box-shadow: 0 1px 0 #d8ddd5, 0 24px 48px -28px rgba(27, 36, 32, 0.35);
    font-size: 0.86rem;
    transform: rotate(0.6deg);
}
.sheet::after {
    /* spodní list pod fakturou */
    content: "";
    position: absolute;
    inset: 8px -8px -8px 8px;
    background: #fbfbf9;
    border: 1px solid #d8ddd5;
    border-radius: 4px;
    z-index: -1;
    transform: rotate(-1.6deg);
}
.sheet-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding-bottom: 16px; border-bottom: 2px solid #1b2420; }
.sheet-title { font-size: 1.15rem; font-weight: 800; letter-spacing: -0.01em; }
.sheet-meta { text-align: right; color: #5e6a63; line-height: 1.5; }
.sheet-meta strong { color: #1b2420; }
.sheet-parties { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 16px 0; border-bottom: 1px solid #d8ddd5; }
.sheet-parties small { display: block; color: #5e6a63; margin-bottom: 2px; }
.sheet-parties b { display: block; }
.sheet table { width: 100%; border-collapse: collapse; margin: 12px 0 4px; }
.sheet th { text-align: left; font-weight: 600; color: #5e6a63; font-size: 0.78rem; padding: 6px 0; border-bottom: 1px solid #b9c2b7; }
.sheet td { padding: 8px 0; border-bottom: 1px solid #e6e9e3; }
.sheet .num { text-align: right; white-space: nowrap; }
.sheet-foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-top: 16px; }
.sheet-pay { display: flex; gap: 12px; align-items: center; color: #5e6a63; font-size: 0.78rem; line-height: 1.45; }
.sheet-total { text-align: right; }
.sheet-total small { display: block; color: #5e6a63; }
.sheet-total strong { font-size: 1.45rem; font-weight: 800; letter-spacing: -0.02em; }

.stamp {
    position: absolute;
    right: 150px;
    bottom: 34px;
    padding: 6px 14px;
    border: 3px solid #2f4a9a;
    border-radius: 6px;
    color: #2f4a9a;
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: 0.12em;
    transform: rotate(-12deg);
    opacity: 0.82;
    mix-blend-mode: multiply;
    pointer-events: none;
    box-shadow: inset 0 0 0 2px rgba(47, 74, 154, 0.15);
}
.stamp small { display: block; font-size: 0.62rem; letter-spacing: 0.04em; font-weight: 600; text-align: center; }
@media (prefers-reduced-motion: no-preference) {
    .stamp { animation: stamp-press 0.5s cubic-bezier(0.2, 1.4, 0.4, 1) 0.9s both; }
}
@keyframes stamp-press {
    0% { opacity: 0; transform: rotate(-12deg) scale(1.6); }
    100% { opacity: 0.82; transform: rotate(-12deg) scale(1); }
}

/* Funkce – řádky účetní knihy */
.ledger {
    border-top: 2px solid var(--text-main);
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 48px;
}
.ledger-row {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 14px;
    padding: 22px 0;
    border-bottom: 1px solid var(--border-color);
}
.ledger-row i { color: var(--color-primary); font-size: 1.05rem; margin-top: 3px; }
.ledger-row h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.ledger-row p { color: var(--text-muted); font-size: 0.96rem; }

/* Postup */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--bg-surface); counter-reset: step; }
.step { padding: 28px; border-right: 1px solid var(--border-color); }
.step:last-child { border-right: none; }
.step-num { font-size: 0.9rem; font-weight: 700; color: var(--color-primary); margin-bottom: 14px; display: inline-flex; width: 30px; height: 30px; border: 1.5px solid var(--color-primary); border-radius: 50%; align-items: center; justify-content: center; }
.step h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.step p { color: var(--text-muted); }

/* Beta */
.beta-box {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 48px;
    align-items: start;
}
.beta-box h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800; margin-bottom: 12px; }
.beta-list { list-style: none; border-top: 1px solid var(--border-color); }
.beta-list li { padding: 14px 0 14px 30px; border-bottom: 1px solid var(--border-color); position: relative; }
.beta-list li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 2px; top: 15px; color: var(--color-primary); font-size: 0.85rem; }
.beta-list strong { display: block; }
.beta-list span { color: var(--text-muted); font-size: 0.95rem; }

/* Časté otázky */
.faq { max-width: 780px; border-top: 1px solid var(--border-color); }
.faq details { border-bottom: 1px solid var(--border-color); }
.faq summary {
    list-style: none;
    cursor: pointer;
    padding: 18px 36px 18px 0;
    font-weight: 600;
    font-size: 1.04rem;
    position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: "+";
    position: absolute;
    right: 4px;
    top: 14px;
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text-muted);
}
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 0 20px; color: var(--text-muted); max-width: 68ch; }

/* Výzva na konci */
.cta-band { padding: 72px 0; background: var(--color-primary); color: #fff; }
[data-theme="dark"] .cta-band { background: #1a3a2d; }
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 10px; }
.cta-band p { opacity: 0.85; margin-bottom: 24px; max-width: 52ch; }
.cta-band .btn-light { background: #fff; color: #1e5a43; border-color: #fff; padding: 13px 22px; font-size: 1rem; }
.cta-band .btn-light:hover { background: #eef2ee; }

/* Patička */
.site-footer { border-top: 1px solid var(--border-color); padding: 48px 0 28px; background: var(--bg-base); }
.site-footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.site-footer p { color: var(--text-muted); margin-top: 10px; max-width: 40ch; font-size: 0.94rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 24px; align-content: flex-start; }
.site-footer nav a { color: var(--text-muted); font-size: 0.94rem; }
.site-footer nav a:hover { color: var(--text-main); }
.site-footer-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border-color); color: var(--text-muted); font-size: 0.86rem; }

/* Textové stránky (beta, články) */
.prose { max-width: 70ch; }
.prose h1 { font-size: clamp(2rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 14px; }
.prose h2 { font-size: 1.3rem; font-weight: 700; margin: 32px 0 10px; }
.prose p, .prose li { color: var(--text-muted); font-size: 1.03rem; line-height: 1.7; }
.prose p { margin-bottom: 12px; }
.prose ul { padding-left: 20px; margin-bottom: 12px; }
.prose a { color: var(--color-primary); font-weight: 600; }

/* Úpravy starších stránek (články, kalkulačky, kontakt) na nový vzhled */
.blog-card, .calc-card, .contact-container .glass-panel {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border-radius: var(--radius-md) !important;
    background: var(--bg-surface) !important;
}
.blog-card:hover { transform: none !important; border-color: var(--border-strong) !important; }
.blog-title, .blog-modal h2 { font-family: inherit !important; }
.blog-modal-content { border-radius: var(--radius-md) !important; }
.blog-tag { text-transform: none !important; letter-spacing: 0 !important; font-weight: 600 !important; }

@media (max-width: 960px) {
    .hero-grid, .beta-box { grid-template-columns: 1fr; gap: 48px; }
    .ledger { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .step { border-right: none; border-bottom: 1px solid var(--border-color); }
    .step:last-child { border-bottom: none; }
    .sheet-wrap { max-width: 560px; }
}
@media (max-width: 560px) {
    .section { padding: 64px 0; }
    .hero { padding: 40px 0 56px; }
    .container { padding: 0 16px; }
    .sheet { padding: 20px 18px; font-size: 0.8rem; transform: none; }
    .sheet-parties { grid-template-columns: 1fr; gap: 10px; }
    .stamp { right: 18px; bottom: 96px; font-size: 0.95rem; }
    .sheet-foot { flex-direction: column; align-items: stretch; }
}
@media (max-width: 560px) {
    .sheet-head { flex-direction: column; gap: 6px; }
    .sheet-meta { text-align: left; }
    .sheet-meta br { display: none; }
    .sheet-meta strong { margin-right: 10px; }
}

/* Plán vývoje – časová osa */
.roadmap { list-style: none; position: relative; max-width: 820px; }
.roadmap::before { content: ""; position: absolute; left: 190px; top: 8px; bottom: 8px; width: 2px; background: var(--border-color); }
.roadmap li { display: grid; grid-template-columns: 170px 40px minmax(0, 1fr); align-items: start; padding: 0 0 30px; position: relative; }
.rm-when { text-align: right; font-weight: 700; color: var(--text-muted); padding-top: 2px; font-size: 0.95rem; }
.rm-dot { width: 14px; height: 14px; border-radius: 50%; margin: 5px 0 0 14px; background: var(--bg-base); border: 2px solid var(--border-strong); position: relative; z-index: 1; }
.rm-done .rm-dot { background: var(--color-primary); border-color: var(--color-primary); }
.rm-now .rm-dot { width: 20px; height: 20px; margin: 2px 0 0 11px; background: var(--color-secondary); border-color: var(--color-secondary); box-shadow: 0 0 0 5px rgba(47, 74, 154, 0.18); }
.rm-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.rm-body p { color: var(--text-muted); max-width: 58ch; }
.rm-state { display: inline-block; font-size: 0.78rem; font-weight: 700; margin-bottom: 4px; color: var(--text-muted); }
.rm-done .rm-state { color: var(--color-primary); }
.rm-now .rm-state { color: var(--color-secondary); border: 2px solid var(--color-secondary); border-radius: 4px; padding: 0 6px; transform: rotate(-3deg); }
.rm-now .rm-when { color: var(--text-main); }
.rm-next .rm-body h3 { color: var(--text-muted); }
.roadmap-compact li { padding-bottom: 18px; }
.roadmap-compact .rm-body h3 { font-size: 1rem; }
@media (max-width: 640px) {
    .roadmap::before { left: 7px; }
    .roadmap li { grid-template-columns: 30px minmax(0, 1fr); padding-left: 0; }
    .rm-when { grid-column: 2; grid-row: 1; text-align: left; font-size: 0.85rem; }
    .rm-dot { grid-column: 1; grid-row: 1 / span 2; margin: 3px 0 0 0; }
    .rm-now .rm-dot { margin: 0 0 0 -3px; }
    .rm-body { grid-column: 2; }
}