/* MomentumTV – design system (Etap 1). Bez kroku budowania: czysty CSS. */
:root {
    --navy-900: #071522;
    --navy-800: #0B1D2D;
    --navy-700: #102A40;
    --blue: #0798FF;
    --blue-hover: #35B8FF;
    --bg: #F7FAFC;
    --surface: #FFFFFF;
    --text: #102033;
    --muted: #5B7189;
    --border: #DDEAF4;
    --blue-soft: #EAF6FF;
    --success: #15803D;
    --warning: #B45309;
    --danger: #B91C1C;
    --r-card: 16px;
    --r-section: 20px;
    --r-btn: 12px;
    --r-input: 12px;
    --shadow: 0 1px 2px rgba(16, 32, 51, .04), 0 6px 16px rgba(16, 32, 51, .06);
    --font: Inter, Manrope, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

:root[data-theme="dark"] {
    --bg: #071522;
    --surface: #0B1D2D;
    --text: #E8F1F8;
    --muted: #A9BDD0;
    --border: #1B3A55;
    --blue-soft: #0F2B44;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3);
}

@media (prefers-color-scheme: dark) {
    :root[data-theme="auto"] {
        --bg: #071522;
        --surface: #0B1D2D;
        --text: #E8F1F8;
        --muted: #A9BDD0;
        --border: #1B3A55;
        --blue-soft: #0F2B44;
        --shadow: 0 1px 2px rgba(0, 0, 0, .3);
    }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.5;
    background: var(--bg);
    color: var(--text);
}
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: clamp(32px, 5vw, 54px); font-weight: 800; }
h2, .h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 700; margin-top: 32px; }
h3 { font-size: 20px; font-weight: 600; }
p { margin: 0 0 12px; }
.lead { color: var(--muted); font-size: 17px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 520px; }
.section { padding: 28px 0; }
:focus-visible { outline: 3px solid var(--blue-hover); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

/* Przyciski */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 44px; padding: 0 24px; border-radius: var(--r-btn);
    border: 1px solid transparent; font: inherit; font-weight: 600;
    cursor: pointer; text-decoration: none; transition: background .15s, border-color .15s;
}
.btn--lg { min-height: 48px; padding: 0 32px; }
.btn--sm { min-height: 36px; padding: 0 16px; font-size: 14px; }
.btn--block { width: 100%; }
.btn--primary { background: var(--blue); color: #fff; }
.btn--primary:hover { background: var(--blue-hover); }
.btn--secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn--secondary:hover { border-color: var(--blue); }
.btn--ghost { background: transparent; color: var(--blue); }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .4); }
.btn--outline-light:hover { border-color: var(--blue-hover); color: var(--blue-hover); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.icon-btn {
    min-height: 36px; padding: 0 12px; border-radius: 10px; font: inherit; font-size: 13px;
    background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, .25); cursor: pointer;
}

/* Formularze */
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.label { font-weight: 600; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.input, .select, .textarea {
    width: 100%; min-height: 44px; padding: 10px 14px; font: inherit;
    border: 1px solid var(--border); border-radius: var(--r-input);
    background: var(--surface); color: var(--text);
}
.textarea { min-height: 110px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(7, 152, 255, .2); }
.help { font-size: 13px; color: var(--muted); }
.check { display: flex; align-items: center; gap: 10px; margin: 8px 0; }
input[type="checkbox"], input[type="radio"] { width: 20px; height: 20px; accent-color: var(--blue); }
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.switch span { position: absolute; inset: 0; background: var(--border); border-radius: 999px; transition: background .15s; pointer-events: none; }
.switch span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: transform .15s; }
.switch input:checked + span { background: var(--blue); }
.switch input:checked + span::after { transform: translateX(20px); }

/* Karty, plakietki, alerty */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-card); box-shadow: var(--shadow); padding: 22px; }
.card.is-selected { border: 2px solid var(--blue); background: var(--blue-soft); padding: 21px; }
.badge { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; background: var(--blue-soft); color: var(--blue); }
.badge--success { background: rgba(21, 128, 61, .12); color: var(--success); }
.badge--warning { background: rgba(180, 83, 9, .12); color: var(--warning); }
.badge--danger { background: rgba(185, 28, 28, .12); color: var(--danger); }
.badge--muted { background: var(--border); color: var(--muted); }
.badge--onDark { background: rgba(53, 184, 255, .15); color: var(--blue-hover); font-size: 14px; padding: 6px 14px; }
.alert { padding: 14px 16px; border-radius: 12px; border: 1px solid; margin: 12px 0; }
.alert--info { background: var(--blue-soft); border-color: var(--blue); color: var(--text); }
.alert--success { background: rgba(21, 128, 61, .1); border-color: var(--success); color: var(--text); }
.alert--warning { background: rgba(180, 83, 9, .1); border-color: var(--warning); color: var(--text); }
.alert--danger { background: rgba(185, 28, 28, .1); border-color: var(--danger); color: var(--text); }

/* Zakładki, accordion, tabela, paginacja, tooltip, modal */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tab { padding: 10px 16px; border: 0; border-bottom: 3px solid transparent; background: none; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; white-space: nowrap; }
.tab[aria-selected="true"] { color: var(--blue); border-color: var(--blue); }
.accordion details { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); margin-bottom: 10px; }
.accordion summary { padding: 14px 18px; cursor: pointer; font-weight: 600; }
.accordion details > div { padding: 0 18px 16px; color: var(--muted); }
.table-wrap { overflow-x: auto; padding: 0; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table th { font-size: 13px; color: var(--muted); font-weight: 600; }
.table tr:last-child td { border-bottom: 0; }
.pagination { display: flex; gap: 6px; margin: 16px 0; flex-wrap: wrap; }
.pagination a, .pagination span { min-width: 38px; height: 38px; padding: 0 8px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: 10px; text-decoration: none; color: var(--text); background: var(--surface); }
.pagination .is-current { background: var(--blue); border-color: var(--blue); color: #fff; }
.info { position: relative; display: inline-block; }
.info-btn { width: 20px; height: 20px; padding: 0; border-radius: 50%; border: 1px solid var(--muted); background: none; color: var(--muted); font-size: 12px; font-weight: 700; line-height: 1; cursor: pointer; }
.info-pop { display: none; position: absolute; top: 28px; left: 50%; transform: translateX(-50%); width: 260px; max-width: 78vw; padding: 12px; border-radius: 10px; background: var(--navy-800); color: #fff; font-size: 13px; font-weight: 400; z-index: 30; box-shadow: 0 8px 24px rgba(0, 0, 0, .3); }
.info.is-open .info-pop { display: block; }
dialog { border: 1px solid var(--border); border-radius: var(--r-section); padding: 24px; max-width: 480px; width: calc(100% - 32px); background: var(--surface); color: var(--text); }
dialog::backdrop { background: rgba(7, 21, 34, .6); }

/* Header / footer (zawsze ciemne) */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--navy-900); color: #fff; border-bottom: 1px solid rgba(255, 255, 255, .06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; position: relative; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 10px; background: var(--blue); font-size: 14px; }
.brand-text { display: grid; line-height: 1.1; }
.brand-text small { font-size: 11px; color: #A9BDD0; letter-spacing: .04em; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { color: #fff; text-decoration: none; font-weight: 600; font-size: 15px; }
.main-nav a:hover { color: var(--blue-hover); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; min-height: 36px; width: 40px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .25); background: transparent; color: #fff; font-size: 18px; cursor: pointer; }
.site-footer { background: var(--navy-900); color: #fff; margin-top: 48px; padding-top: 40px; }
.footer-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; padding-bottom: 28px; }
.footer-grid h3 { font-size: 15px; color: #fff; }
.footer-grid a { display: block; color: #A9BDD0; text-decoration: none; margin-bottom: 6px; }
.footer-grid a:hover { color: var(--blue-hover); }
.muted-on-dark { color: #A9BDD0; font-size: 14px; }
.footer-badge { display: flex; align-items: flex-start; justify-content: flex-end; }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 16px; padding-bottom: 20px; border-top: 1px solid rgba(255, 255, 255, .08); font-size: 13px; color: #A9BDD0; }
.footer-bottom .legal a { color: #A9BDD0; margin-left: 16px; text-decoration: none; }

/* Strona główna */
.hero { background: linear-gradient(135deg, var(--navy-900), var(--navy-700)); color: #fff; padding: 64px 0; }
.hero-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; }
.hero .accent { display: block; color: var(--blue-hover); }
.hero-text { color: #C9D8E6; font-size: 18px; max-width: 520px; margin: 16px 0 24px; }
.hero-benefits { list-style: none; margin: 0; padding: 20px 24px; border-radius: var(--r-section); background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); display: grid; gap: 14px; }
.hero-benefits li { font-weight: 600; padding-left: 28px; position: relative; }
.hero-benefits li::before { content: "\2713"; position: absolute; left: 0; color: var(--blue-hover); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.empty { border: 2px dashed var(--border); border-radius: var(--r-card); padding: 28px; text-align: center; color: var(--muted); }
.card--placeholder { display: grid; gap: 12px; }
.ph { background: var(--border); border-radius: 10px; opacity: .6; }
.ph--img { height: 120px; }
.ph--line { height: 14px; }
.ph--short { width: 60%; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 12px 0; }
.swatches { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.swatch { padding: 22px 8px; border-radius: 12px; font-size: 12px; font-weight: 700; text-align: center; border: 1px solid var(--border); }

/* Responsywność */
@media (max-width: 1199px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
    .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
    .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: flex-start; gap: 0; background: var(--navy-900); padding: 8px 20px 16px; border-top: 1px solid rgba(255, 255, 255, .08); }
    .main-nav a { padding: 12px 0; width: 100%; }
    body.nav-open .main-nav { display: flex; }
    .hero-inner { grid-template-columns: 1fr; }
    .hero { padding: 40px 0; }
    .two-col, .grid-3 { grid-template-columns: 1fr; }
    .swatches { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-badge { justify-content: flex-start; }
    .brand-text small { display: none; }
}
@media (max-width: 420px) {
    .grid-4 { grid-template-columns: 1fr; }
}