/* ============================================================
   MaxProd Win — landing page
   Kierunek: „inżynierska precyzja" — jasny papier techniczny,
   sygnałowy pomarańcz, stalowe akcenty. Mockup tabletu pozostaje
   ciemny (kontrastowy element-urządzenie).
   Fonty: Chakra Petch / IBM Plex Sans / IBM Plex Mono.
   ============================================================ */

:root {
    --bg: #f2f6f8;
    --bg-alt: #e8eef2;
    --panel: #ffffff;
    --steel-900: #0b1620;
    --steel-800: #0f2027;
    --steel-700: #16303c;
    --steel-500: #2c5364;
    --line: rgba(23, 62, 88, 0.14);
    --line-strong: rgba(23, 62, 88, 0.28);
    --ink: #14242f;
    --ink-dim: #51677a;
    --signal: #f07c00;
    --signal-deep: #d96b00;
    --signal-soft: rgba(240, 124, 0, 0.12);
    --ok: #14935f;
    --font-display: "Chakra Petch", sans-serif;
    --font-body: "IBM Plex Sans", sans-serif;
    --font-mono: "IBM Plex Mono", monospace;
    --radius: 10px;
    --maxw: 72rem;
    --shadow: 0 10px 30px rgba(15, 44, 66, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

/* Siatka „papieru technicznego" w tle całej strony */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 56px,
        linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 56px 100%;
    opacity: 0.30;
    z-index: 0;
}

main, header.topbar, footer { position: relative; z-index: 1; }

h1, h2, h3 {
    font-family: var(--font-display);
    line-height: 1.15;
    letter-spacing: 0.01em;
    margin: 0 0 0.6em;
    color: var(--steel-800);
}

a { color: var(--signal-deep); }
a:focus-visible, button:focus-visible {
    outline: 2px solid var(--signal);
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--signal);
    color: #1a1a1a;
    padding: 0.6rem 1rem;
    z-index: 100;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

.wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 1.4rem;
}

/* ---------- Pasek górny ---------- */
.topbar {
    position: sticky;
    top: 0;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.88);
    border-bottom: 1px solid var(--line);
    z-index: 50;
}

.topbar .wrap {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    min-height: 4.2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--steel-800);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.2rem;
    white-space: nowrap;
}

.brand .logo {
    width: 2.2rem;
    height: 2.2rem;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--signal), #ff5e00);
    color: #fff;
    border-radius: 7px;
    font-weight: 700;
}

nav.mainnav {
    display: flex;
    gap: 1.5rem;
    margin-left: auto;
}

nav.mainnav a {
    color: var(--ink-dim);
    text-decoration: none;
    font-size: 0.95rem;
}
nav.mainnav a:hover { color: var(--steel-800); }

.lang-switch {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    display: flex;
    gap: 0.4rem;
    align-items: center;
    color: var(--ink-dim);
}
.lang-switch a { color: var(--ink-dim); text-decoration: none; }
.lang-switch a:hover { color: var(--steel-800); }
.lang-switch .active { color: var(--signal-deep); font-weight: 600; }

.btn {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    padding: 0.7rem 1.5rem;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-signal {
    background: linear-gradient(135deg, var(--signal), #ff6a00);
    color: #fff;
    box-shadow: 0 8px 24px rgba(240, 124, 0, 0.3);
}
.btn-signal:hover { box-shadow: 0 12px 32px rgba(240, 124, 0, 0.45); }

.btn-ghost {
    border-color: var(--line-strong);
    color: var(--steel-800);
    background: transparent;
}
.btn-ghost:hover { background: rgba(23, 62, 88, 0.05); }

.btn-login { padding: 0.55rem 1.2rem; font-size: 0.92rem; }

/* hamburger (mobile) */
.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--line-strong);
    border-radius: 7px;
    color: var(--steel-800);
    font-size: 1.3rem;
    padding: 0.25rem 0.6rem;
    margin-left: auto;
}

/* ---------- Hero ---------- */
.hero {
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    right: -12rem;
    top: -8rem;
    width: 42rem;
    height: 42rem;
    background: radial-gradient(closest-side, rgba(240, 124, 0, 0.12), transparent 70%);
    pointer-events: none;
}

.hero .wrap {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
    align-items: center;
}

.kicker {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--signal-deep);
    display: flex;
    align-items: center;
    gap: 0.7rem;
}
.kicker::before {
    content: "";
    width: 2.4rem;
    height: 1px;
    background: var(--signal-deep);
}

.hero h1 {
    font-size: clamp(2.2rem, 4.6vw, 3.6rem);
    margin: 0.7rem 0 1rem;
}
.hero h1 em {
    font-style: normal;
    color: var(--signal-deep);
}

.hero .lead {
    color: var(--ink-dim);
    font-size: 1.15rem;
    max-width: 34rem;
}

.hero .cta-row {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.hero .smallnote {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--ink-dim);
    font-family: var(--font-mono);
}

/* ---------- Mockup tabletu (celowo ciemny — „urządzenie") ---------- */
.mockup {
    background: linear-gradient(165deg, var(--steel-700), var(--steel-800) 70%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    padding: 1.4rem;
    box-shadow: 0 30px 70px rgba(15, 44, 66, 0.35);
    transform: rotate(1.5deg);
    max-width: 30rem;
    justify-self: end;
    width: 100%;
    color: #e8f1f5;
}

.mockup-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #9db4c0;
    border-bottom: 1px dashed rgba(157, 180, 192, 0.35);
    padding-bottom: 0.7rem;
    margin-bottom: 0.9rem;
}

.mockup-dwp {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: #2ec486;
}
.mockup-dwp span { font-variant-numeric: tabular-nums; }

.mrow {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.7rem;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(157, 180, 192, 0.2);
    border-radius: 9px;
    padding: 0.6rem 0.8rem;
    margin-bottom: 0.55rem;
}

.mrow .nm { font-size: 0.88rem; }
.mrow .nm small {
    display: block;
    color: #9db4c0;
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.mrow .qty {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    white-space: nowrap;
}
.mrow .qty b { color: #2ec486; }

.mbtn {
    font-family: var(--font-display);
    font-weight: 700;
    background: #2ec486;
    color: #06231a;
    border: none;
    border-radius: 8px;
    padding: 0.45rem 0.8rem;
    font-size: 1rem;
}

.mbar {
    grid-column: 1 / -1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}
.mbar i {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #2ec486, #59e0ad);
    width: 0;
    transition: width 1.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.in-view .mbar i { width: var(--w, 60%); }

.mrow.done { border-color: rgba(46, 196, 134, 0.5); }
.mrow.done .nm::before { content: "✓ "; color: #2ec486; }

/* ---------- Pasek statystyk ---------- */
.stats {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: var(--panel);
}

.stats .wrap {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}

.stat {
    padding: 1.6rem 1rem;
    border-left: 1px dashed var(--line);
}
.stat:first-child { border-left: none; }

.stat b {
    display: block;
    font-family: var(--font-display);
    font-size: 1.9rem;
    color: var(--signal-deep);
    font-variant-numeric: tabular-nums;
}
.stat span { color: var(--ink-dim); font-size: 0.88rem; }

/* ---------- Linijka-separator (motyw miarki) ---------- */
.ruler {
    height: 18px;
    background:
        repeating-linear-gradient(90deg,
            var(--line-strong) 0 1px, transparent 1px 14px),
        repeating-linear-gradient(90deg,
            var(--line-strong) 0 1px, transparent 1px 70px);
    background-size: 100% 8px, 100% 18px;
    background-repeat: repeat-x;
    background-position: bottom, bottom;
    opacity: 0.55;
    margin: 0;
}

/* ---------- Sekcje ---------- */
section { padding: 4.5rem 0; }

.sec-head { max-width: 44rem; margin-bottom: 2.6rem; }
.sec-head h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.sec-head p { color: var(--ink-dim); }

/* pas „problemy" / sekcje wyróżnione */
.problems { background: var(--bg-alt); }

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}
.problem {
    border: 1px solid var(--line);
    border-left: 3px solid var(--signal);
    border-radius: var(--radius);
    padding: 1.2rem 1.3rem;
    background: var(--panel);
    box-shadow: var(--shadow);
}
.problem h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.problem p { margin: 0; color: var(--ink-dim); font-size: 0.95rem; }

/* features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
}

.feature {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.5rem 1.4rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, border-color 0.2s ease;
}
.feature:hover {
    transform: translateY(-4px);
    border-color: rgba(240, 124, 0, 0.5);
}

.feature .ic {
    width: 2.6rem;
    height: 2.6rem;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--signal-soft);
    color: var(--signal-deep);
    font-size: 1.3rem;
    margin-bottom: 0.9rem;
}

.feature h3 { font-size: 1.12rem; }
.feature p { color: var(--ink-dim); font-size: 0.95rem; margin: 0; }

/* how it works — oś czasu */
.steps {
    counter-reset: step;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
}

.step {
    counter-increment: step;
    position: relative;
    border-top: 2px solid var(--line-strong);
    padding-top: 1.4rem;
}
.step::before {
    content: "0" counter(step);
    position: absolute;
    top: -1.05rem;
    left: 0;
    background: var(--bg);
    padding-right: 0.7rem;
    font-family: var(--font-mono);
    color: var(--signal-deep);
    font-size: 1.25rem;
    font-weight: 600;
}
.step h3 { font-size: 1.1rem; }
.step p { color: var(--ink-dim); font-size: 0.95rem; }

/* sekcje wyróżnione mają inne tło — maska numeru kroku musi pasować */
.problems .step::before { background: var(--bg-alt); }

/* dla kogo */
.who-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
}
.who {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    background: var(--panel);
    box-shadow: var(--shadow);
}
.who .mat {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--signal-deep);
}
.who p { color: var(--ink-dim); font-size: 0.93rem; }

/* FAQ */
.faq details {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    margin-bottom: 0.8rem;
    background: var(--panel);
    box-shadow: var(--shadow);
}
.faq summary {
    cursor: pointer;
    padding: 1.05rem 1.3rem;
    font-family: var(--font-display);
    font-size: 1.02rem;
    list-style: none;
    position: relative;
    padding-right: 3rem;
    color: var(--steel-800);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: "+";
    position: absolute;
    right: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--signal-deep);
    font-size: 1.4rem;
    font-family: var(--font-mono);
}
.faq details[open] summary::after { content: "–"; }
.faq details p {
    margin: 0;
    padding: 0 1.3rem 1.2rem;
    color: var(--ink-dim);
}

/* ---------- Kontakt ---------- */
.contact { background: var(--bg-alt); }

.contact .wrap {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
    align-items: start;
}

.contact-side h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.contact-side p { color: var(--ink-dim); }
.contact-side .mono {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    margin-top: 1.6rem;
    color: var(--steel-800);
}

form.lead-form {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1.8rem;
    display: grid;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.lead-form label {
    font-size: 0.85rem;
    font-family: var(--font-mono);
    color: var(--ink-dim);
    display: block;
    margin-bottom: 0.3rem;
}

.lead-form input,
.lead-form textarea {
    width: 100%;
    background: #fff;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    color: var(--ink);
    padding: 0.7rem 0.9rem;
    font-family: var(--font-body);
    font-size: 1rem;
}
.lead-form input:focus,
.lead-form textarea:focus {
    outline: 2px solid var(--signal);
    outline-offset: 0;
    border-color: transparent;
}

.lead-form .consent {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    font-size: 0.82rem;
    color: var(--ink-dim);
}
.lead-form .consent input { width: auto; margin-top: 0.25rem; }

.form-msg {
    font-size: 0.95rem;
    border-radius: 8px;
    padding: 0.8rem 1rem;
    display: none;
}
.form-msg.ok { display: block; background: rgba(20, 147, 95, 0.12); color: #0e6b46; }
.form-msg.err { display: block; background: rgba(214, 64, 36, 0.1); color: #a33015; }

/* honeypot — niewidoczny dla ludzi */
.hp-field {
    position: absolute !important;
    left: -5000px !important;
    width: 1px; height: 1px;
    overflow: hidden;
}

/* ---------- Stopka ---------- */
footer {
    border-top: 1px solid var(--line);
    padding: 2.4rem 0 3rem;
    color: var(--ink-dim);
    font-size: 0.9rem;
    background: var(--panel);
}
footer .wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: space-between;
    align-items: center;
}
footer a { color: var(--ink-dim); }
footer a:hover { color: var(--steel-800); }
footer .foot-links { display: flex; gap: 1.4rem; }

/* ---------- Animacje wejścia ---------- */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.12s; }
.reveal[data-delay="2"] { transition-delay: 0.24s; }
.reveal[data-delay="3"] { transition-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .mbar i { transition: none; }
    .btn, .feature { transition: none; }
}

/* ---------- RWD ---------- */
@media (max-width: 980px) {
    .hero .wrap { grid-template-columns: 1fr; }
    .mockup { justify-self: center; transform: none; }
    .features-grid, .problem-grid, .steps, .who-grid { grid-template-columns: 1fr 1fr; }
    .stats .wrap { grid-template-columns: 1fr 1fr; }
    .stat:nth-child(3) { border-left: none; }
    .contact .wrap { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
    nav.mainnav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--panel);
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        padding: 1rem 1.4rem;
        gap: 0.9rem;
    }
    nav.mainnav.open { display: flex; }
    .nav-toggle { display: block; }
    .features-grid, .problem-grid, .steps, .who-grid { grid-template-columns: 1fr; }
    .stats .wrap { grid-template-columns: 1fr 1fr; }
    .topbar .lang-switch { margin-left: auto; }
    .topbar .btn-login { padding: 0.45rem 0.9rem; font-size: 0.85rem; }
}