/* ==========================================================================
   Topochron — marketing web (www/)
   Barva je jediná proměnná --color-primary — změň ji a celý web se přebarví.
   ========================================================================== */

:root {
    /* Stejná paleta jako app/ (viz app/css/_base.scss) — navy jako hlavní
       brand barva, teplá zlatá jako doplňkový akcent (ikony, čísla kroků),
       ať oba weby ladí. */
    --color-primary:      #2c3e50;
    --color-primary-dark: #1b2733;
    --color-primary-soft: #edf0f3;

    --color-accent:      #ead0aa;
    --color-accent-dark: #8a6a3a;
    --color-accent-soft: #faf3e6;

    --color-ink:    #16211c;
    --color-muted:  #55645d;
    --color-bg:     #f7f6f1;
    --color-bg-alt: #ffffff;
    --color-border: #e3e0d6;

    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;

    --wrap-width: 1120px;
    --radius: 14px;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    color: var(--color-ink);
    background: var(--color-bg);
    overflow-x: hidden;
    /* Kompenzace za .site-header, který je teď position:fixed (77px = výška
       .site-header-inner 76px + 1px border-bottom). */
    padding-top: 77px;
}

.wrap {
    max-width: var(--wrap-width);
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    line-height: 1.15;
}

.kicker {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

a { color: inherit; text-decoration: none; }

/* --- buttons --- */

.btn {
    display: inline-block;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-radius: 999px;
    padding: 12px 26px;
    font-size: 0.9rem;
    transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
    border: 2px solid transparent;
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); }

.btn-ghost {
    border-color: var(--color-ink);
    color: var(--color-ink);
}
.btn-ghost:hover { background: var(--color-ink); color: #fff; }

.btn-sm { padding: 8px 18px; font-size: 0.8rem; }
.btn-lg { padding: 16px 34px; font-size: 1rem; }

/* --- header --- */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    /* Musí být nad .nav-overlay (z-index 40) — .site-nav je potomek .site-header,
       takže i kdyby měl vyšší vlastní z-index, stacking context rodiče ho stejně
       omezí. Bez tohohle vypadá vysunuté menu jako "pod maskou". */
    z-index: 60;
    background: rgba(247, 246, 241, 0.9);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--color-border);
}
.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 76px;
}
.logo {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 1.3rem;
}
.site-nav {
    display: flex;
    gap: 32px;
    margin-left: auto;
    margin-right: 32px;
    font-weight: 600;
    font-size: 0.95rem;
}
.site-nav a:hover { color: var(--color-primary); }

.nav-login-mobile { display: none; }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    /* Nad .site-nav (z-index 50) — jinak ho vysunutý panel při otevření překryje
       a křížek na zavření zmizí. */
    position: relative;
    z-index: 55;
}
.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(22, 33, 28, 0.45);
    z-index: 40;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.nav-overlay.is-open { display: block; opacity: 1; }

body.nav-locked {
    position: fixed;
    left: 0;
    right: 0;
    overflow: hidden;
}

/* --- hero --- */

.hero {
    padding: 120px 0 100px;
    text-align: center;
    background:
        radial-gradient(ellipse at top, var(--color-primary-soft) 0%, transparent 60%);
}
.hero h1 {
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    max-width: 900px;
    margin: 0 auto 26px;
}
.hero-subtitle {
    max-width: 620px;
    margin: 0 auto 44px;
    font-size: 1.15rem;
    color: var(--color-muted);
}
.hero-checklist {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 22px;
    max-width: 640px;
    margin: 0 auto 36px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-ink);
}

.hero-actions {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-visual {
    max-width: 960px;
    margin: 56px auto 0;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background:
        linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-bg-alt) 100%);
    border: 1px solid var(--color-border);
}
.hero-visual img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --- jedna databáze, mnoho pohledů --- */

.views {
    padding: 100px 0;
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}
.views h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    max-width: 720px;
    margin: 0 auto 16px;
}
.views-intro {
    max-width: 620px;
    margin: 0 auto 56px;
    color: var(--color-muted);
    font-size: 1.05rem;
}
.views-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: left;
}
.views-card {
    padding: 24px 4px;
    border-top: 3px solid var(--color-primary);
}
.views-card h3 {
    font-size: 0.98rem;
    margin-bottom: 8px;
}
.views-card p {
    color: var(--color-muted);
    font-size: 0.92rem;
}

/* --- institutions cta strip --- */

.institutions-cta {
    padding: 90px 0;
    text-align: center;
    background: var(--color-primary);
    color: #fff;
}
.institutions-cta .kicker { color: #fff; opacity: 0.75; }
.institutions-cta h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 14px;
}
.institutions-cta-desc {
    max-width: 480px;
    margin: 0 auto 32px;
    opacity: 0.9;
}
.institutions-cta .btn-primary {
    background: #fff;
    color: var(--color-primary-dark);
}
.institutions-cta .btn-primary:hover { background: var(--color-bg); }

/* --- compare --- */

.compare { padding: 100px 0; text-align: center; background: var(--color-bg-alt); }
.compare h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    max-width: 720px;
    margin: 0 auto 48px;
}
.compare-table-wrap {
    max-width: 640px;
    margin: 0 auto;
    overflow-x: auto;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}
.compare-table th,
.compare-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
}
.compare-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-muted);
}
.compare-cell { text-align: center; font-weight: 700; }
.compare-table td:nth-child(2),
.compare-table th:nth-child(2) { color: var(--color-muted); font-weight: 400; }
.compare-table td:nth-child(3) { color: var(--color-primary); }
.compare-row-highlight td {
    background: var(--color-primary-soft);
    font-weight: 700;
}

/* --- features --- */

.features { padding: 100px 0; }
.features .kicker, .features h2 { text-align: center; }
.features h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    max-width: 720px;
    margin: 0 auto 64px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.feature-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px 28px;
}
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-accent-soft);
    color: var(--color-accent-dark);
    font-size: 1.1rem;
    margin-bottom: 18px;
}
.feature-card h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
}
.feature-card p {
    color: var(--color-muted);
    font-size: 0.98rem;
}

/* --- how it works --- */

.how {
    padding: 100px 0;
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.how .kicker, .how h2 { text-align: center; }
.how h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    max-width: 720px;
    margin: 0 auto 64px;
}

.steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    counter-reset: step;
}
.steps li { position: relative; padding-top: 8px; }
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-accent);
    color: var(--color-ink);
    font-weight: 800;
    margin-bottom: 18px;
}
.steps h3 {
    font-size: 0.95rem;
    margin-bottom: 8px;
}
.steps p {
    color: var(--color-muted);
    font-size: 0.92rem;
}

.how-note {
    text-align: center;
    margin-top: 56px;
    color: var(--color-muted);
    font-size: 0.95rem;
}

/* --- faq --- */

.faq { padding: 100px 0; }
.faq .kicker, .faq h2 { text-align: center; }
.faq h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    max-width: 720px;
    margin: 0 auto 48px;
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px 24px;
}
.faq-item summary {
    cursor: pointer;
    font-weight: 700;
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    float: right;
    color: var(--color-accent-dark);
    font-weight: 800;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
    margin-top: 14px;
    color: var(--color-muted);
    font-size: 0.95rem;
}

/* --- audience --- */

.audience {
    padding: 100px 0;
    text-align: center;
    background: var(--color-primary-soft);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.audience h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    max-width: 720px;
    margin: 0 auto 48px;
}
.audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: left;
}
.audience-card {
    padding: 20px 22px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
.audience-card h3 {
    font-size: 0.95rem;
    margin-bottom: 6px;
}
.audience-card p {
    color: var(--color-muted);
    font-size: 0.9rem;
}

/* --- cta --- */

.cta {
    padding: 110px 0;
    text-align: center;
}
.cta h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    margin-bottom: 16px;
}
.cta p {
    color: var(--color-muted);
    margin-bottom: 36px;
    font-size: 1.05rem;
}

/* --- contact --- */

.contact {
    padding: 100px 0 110px;
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    text-align: center;
}
.contact .kicker, .contact h2 { text-align: center; }
.contact h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    margin-bottom: 14px;
}
.contact-subtitle {
    color: var(--color-muted);
    margin-bottom: 12px;
}
.contact-demo-teaser {
    max-width: 480px;
    margin: 0 auto 40px;
    color: var(--color-muted);
    font-size: 0.92rem;
    font-style: italic;
}

.contact-form {
    max-width: 480px;
    margin: 0 auto;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.form-row label {
    display: block;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 8px;
}
.form-row input,
.form-row textarea,
.form-row select {
    width: 100%;
    font: inherit;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg);
    color: var(--color-ink);
    resize: vertical;
}
.form-row select { cursor: pointer; }
.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
    outline: none;
    border-color: var(--color-primary);
}
.contact-form .btn { align-self: center; margin-top: 6px; }

.form-row-hidden {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-alert {
    max-width: 480px;
    margin: 0 auto 28px;
    padding: 14px 18px;
    border-radius: 8px;
    font-size: 0.95rem;
}
.form-alert-success {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
}
.form-alert-error {
    background: #fbe9e7;
    color: #8a2e1f;
}

/* --- footer --- */

.site-footer {
    background: var(--color-primary);
    color: #fff;
    padding-top: 64px;
}

.site-footer-about {
    text-align: center;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.site-footer-about h3 {
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    margin-bottom: 18px;
}
.site-footer-about p {
    max-width: 640px;
    margin: 0 auto 14px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 1rem;
    line-height: 1.6;
}
.site-footer-about p:last-of-type { margin-bottom: 40px; }

.footer-badges {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    max-width: 880px;
    margin: 0 auto;
    text-align: left;
}
.footer-badge {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
}
.footer-badge-icon {
    font-size: 1.3rem;
    line-height: 1;
    flex-shrink: 0;
}
.footer-badge-text strong {
    display: block;
    font-size: 0.92rem;
    margin-bottom: 4px;
}
.footer-badge-text span {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.4;
}

.site-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    padding-top: 40px;
    padding-bottom: 40px;
    text-align: left;
}

.site-footer-brand .logo {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 1.15rem;
}
.site-footer-brand p {
    margin-top: 10px;
    max-width: 280px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.92rem;
    line-height: 1.5;
}

.site-footer-col h4 {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 14px;
}
.site-footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: 0.92rem;
    margin-bottom: 10px;
}
.site-footer-col a:hover { color: #fff; }

.site-footer-bottom-bar {
    background: var(--color-ink);
}
.site-footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 0;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* --- responsive --- */

@media (max-width: 860px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .views-grid { grid-template-columns: repeat(2, 1fr); }
    .audience-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .site-footer-grid { grid-template-columns: 1fr 1fr; }
    .site-footer-brand { grid-column: 1 / -1; }

    .nav-login-desktop { display: none; }
    .nav-toggle { display: flex; }

    .site-nav {
        position: fixed;
        top: 0;
        right: 0;
        z-index: 50;
        height: 100vh;
        width: min(300px, 80vw);
        margin: 0;
        padding: 90px 28px 28px;
        background: var(--color-bg-alt);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        transform: translateX(100%);
        transition: transform 0.25s ease;
    }
    /* Stín patří jen otevřenému panelu — jinak i po translateX(100%) (mimo
       obrazovku) záporný x-offset + blur zasahuje zpátky přes pravý okraj
       viewportu jako trvalý pruh, i když je menu zavřené. */
    .site-nav.is-open {
        transform: translateX(0);
        box-shadow: -12px 0 32px rgba(22, 33, 28, 0.18);
    }
    .site-nav a:not(.btn) {
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid var(--color-border);
        font-size: 1.05rem;
    }
    .nav-login-mobile {
        display: inline-block;
        margin-top: 24px;
        text-align: center;
    }
}

@media (max-width: 540px) {
    .feature-grid { grid-template-columns: 1fr; }
    .views-grid { grid-template-columns: 1fr; }
    .audience-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .hero { padding: 90px 0 70px; }
    .hero-checklist { font-size: 0.85rem; gap: 8px 16px; }
    .site-footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .site-footer-brand { grid-column: auto; }
}