/* Preplo landing — editorial minimalism. Extends the Source Sans 3 + navy
   system from the Q&A page and resume renderer. The product *is* the
   design; the page reads like a brief, not a sales deck. */

@font-face {
    font-family: 'Source Sans 3';
    src: url('fonts/SourceSans3-Regular.otf.woff2') format('woff2');
    font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Source Sans 3';
    src: url('fonts/SourceSans3-It.otf.woff2') format('woff2');
    font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
    font-family: 'Source Sans 3';
    src: url('fonts/SourceSans3-Bold.otf.woff2') format('woff2');
    font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Source Sans 3';
    src: url('fonts/SourceSans3-BoldIt.otf.woff2') format('woff2');
    font-weight: 700; font-style: italic; font-display: swap;
}

:root {
    --color-body:     #1A1A1A;
    --color-accent:   #1A3258;
    --color-accent-2: #0F1F3A;
    --color-muted:    #5A5A5A;
    --color-subtle:   #8E8E8E;
    --color-paper:    #FCFBF7;
    --color-rule:     #DAD4C7;
    --font-body:      'Source Sans 3', system-ui, sans-serif;
    --col:            720px;
    --col-wide:       960px;
}

* { box-sizing: border-box; }
html, body {
    margin: 0; padding: 0;
    font-family: var(--font-body);
    color: var(--color-body);
    background: var(--color-paper);
    font-size: 16px;
    line-height: 1.55;
    letter-spacing: -0.005em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "kern", "liga", "ss01";
}
a { color: var(--color-accent); text-decoration: none; border-bottom: 0.5px solid currentColor; }
a:hover { color: var(--color-accent-2); }
p { margin: 0 0 1em; }

/* ──────── Topbar ──────── */
.nav {
    position: sticky; top: 0; z-index: 10;
    background: rgba(252, 251, 247, 0.85);
    backdrop-filter: saturate(140%) blur(6px);
    -webkit-backdrop-filter: saturate(140%) blur(6px);
    border-bottom: 0.5px solid var(--color-rule);
}
.nav-inner {
    max-width: var(--col-wide);
    margin: 0 auto;
    padding: 18px 32px;
    display: flex; align-items: baseline; justify-content: space-between;
}
.wordmark {
    font-weight: 700; color: var(--color-accent);
    font-size: 18px;
    letter-spacing: 0.04em;
    border: none;
}
.wordmark::after {
    content: ".ai";
    color: var(--color-subtle);
    font-weight: 400;
    letter-spacing: 0;
}
.nav-links { display: flex; gap: 24px; align-items: baseline; font-size: 14px; }
.nav-links a { border: none; color: var(--color-muted); }
.nav-links a:hover { color: var(--color-accent); }
.nav-cta {
    color: var(--color-paper) !important;
    background: var(--color-accent);
    padding: 8px 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
    font-size: 12px;
    text-transform: uppercase;
    border: none;
}
.nav-cta:hover { background: var(--color-accent-2); }

/* ──────── Layout primitives ──────── */
section { padding: 88px 32px; }
section.tight { padding: 56px 32px; }
.col { max-width: var(--col); margin: 0 auto; }
.col-wide { max-width: var(--col-wide); margin: 0 auto; }
.eyebrow {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--color-accent);
    font-weight: 700;
    margin: 0 0 18px;
}
.section-rule {
    border: none;
    border-top: 1.2pt solid var(--color-accent);
    margin: 0 0 36px;
}

/* ──────── Hero ──────── */
.hero {
    padding-top: 96px; padding-bottom: 64px;
}
.hero .col { max-width: 760px; }
.hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.04;
    color: var(--color-accent);
    margin: 0 0 28px;
    letter-spacing: -0.02em;
}
.hero h1 em {
    font-style: italic;
    color: var(--color-body);
    font-weight: 400;
}
.hero p.lede {
    font-size: 20px;
    line-height: 1.5;
    color: var(--color-body);
    margin: 0 0 32px;
    max-width: 60ch;
}
.hero-cta {
    display: inline-block;
    padding: 14px 24px;
    background: var(--color-accent);
    color: var(--color-paper);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: none;
}
.hero-cta:hover { background: var(--color-accent-2); }
.hero-cta::after { content: " →"; letter-spacing: 0; }
.hero-fine {
    margin: 14px 0 0;
    color: var(--color-muted);
    font-size: 13px;
}

/* ──────── Philosophy ──────── */
.philosophy {
    background: white;
    border-top: 0.5px solid var(--color-rule);
    border-bottom: 0.5px solid var(--color-rule);
}
.philosophy p {
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-body);
}
.philosophy p.kicker {
    font-style: italic;
    color: var(--color-muted);
    font-size: 17px;
}

/* ──────── How it works ──────── */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 8px;
}
.step__num {
    font-size: 11px;
    color: var(--color-accent);
    font-weight: 700;
    letter-spacing: 0.22em;
    font-variant-numeric: tabular-nums;
    margin-bottom: 12px;
}
.step h3 {
    font-size: 19px;
    margin: 0 0 8px;
    color: var(--color-body);
    font-weight: 700;
}
.step p {
    color: var(--color-muted);
    font-size: 15px;
    margin: 0;
    line-height: 1.55;
}

/* ──────── Glimpse / screenshot ──────── */
.glimpse {
    background: white;
    border-top: 0.5px solid var(--color-rule);
    border-bottom: 0.5px solid var(--color-rule);
}
.glimpse h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-accent);
    margin: 0 0 16px;
    letter-spacing: -0.01em;
}
.glimpse .col p {
    color: var(--color-muted);
    margin-bottom: 32px;
    max-width: 56ch;
}
.glimpse-frame {
    margin: 0 auto;
    max-width: 760px;
    padding: 24px;
    background: #FFFEFC;
    border: 0.5px solid var(--color-rule);
    box-shadow: 0 1px 0 var(--color-rule), 0 20px 60px -30px rgba(26,50,88,0.18);
    position: relative;
}
.glimpse-frame img {
    display: block;
    width: 100%;
    height: auto;
}
.glimpse-frame::before {
    content: "Sample · rendered by preplo";
    position: absolute;
    top: -18px;
    right: 8px;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-muted);
    background: var(--color-paper);
    padding: 0 8px;
}

/* ──────── Before/after ──────── */
.before-after {
    background: var(--color-paper);
}
.ba {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 24px;
    border-top: 0.5px solid var(--color-rule);
    padding-top: 28px;
}
.ba + .ba { margin-top: 32px; }
.ba__cell {
    font-size: 14.5px;
    line-height: 1.55;
}
.ba__cell--before {
    color: var(--color-muted);
    font-style: italic;
}
.ba__cell--after {
    color: var(--color-body);
}
.ba__label {
    display: block;
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 6px;
}
.ba__cell--before .ba__label { color: var(--color-muted); }
.ba__cell--after  .ba__label { color: var(--color-accent); }
.ba__arrow {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--color-subtle);
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin: 8px 0 4px;
    display: none;     /* visible on mobile only via media query */
}

/* ──────── Mechanics / facts ──────── */
.facts {
    background: white;
    border-top: 0.5px solid var(--color-rule);
    border-bottom: 0.5px solid var(--color-rule);
}
.facts h2 {
    font-size: 28px;
    color: var(--color-accent);
    margin: 0 0 36px;
    letter-spacing: -0.01em;
}
.facts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}
.fact__value {
    font-size: 34px;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin: 0 0 10px;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}
.fact__label {
    font-size: 13px;
    color: var(--color-muted);
    line-height: 1.45;
    margin: 0;
}

/* ──────── Testimonials ──────── */
.quotes {
    background: var(--color-paper);
}
.quotes .col-wide {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
}
.quote {
    border-left: 2px solid var(--color-accent);
    padding-left: 24px;
}
.quote p {
    font-size: 17px;
    line-height: 1.55;
    color: var(--color-body);
    font-style: italic;
    margin: 0 0 14px;
}
.quote footer {
    font-size: 13px;
    color: var(--color-muted);
    font-style: normal;
}
.quote footer strong { color: var(--color-body); font-weight: 700; }
.quotes-note {
    margin-top: 32px;
    font-size: 12px;
    color: var(--color-subtle);
    font-style: italic;
    text-align: center;
}

/* ──────── FAQ ──────── */
.faq h2 {
    font-size: 28px;
    color: var(--color-accent);
    margin: 0 0 32px;
    letter-spacing: -0.01em;
}
.faq-item {
    padding: 22px 0;
    border-top: 0.5px solid var(--color-rule);
}
.faq-item:last-child { border-bottom: 0.5px solid var(--color-rule); }
.faq-item h3 {
    margin: 0 0 8px;
    font-size: 16px;
    color: var(--color-body);
    font-weight: 700;
}
.faq-item p {
    margin: 0;
    color: var(--color-muted);
    font-size: 15px;
    line-height: 1.55;
}

/* ──────── Final CTA ──────── */
.final-cta {
    background: var(--color-accent);
    color: var(--color-paper);
    text-align: center;
}
.final-cta h2 {
    color: var(--color-paper);
    font-size: 36px;
    margin: 0 0 16px;
    letter-spacing: -0.01em;
}
.final-cta p {
    color: rgba(252, 251, 247, 0.85);
    margin: 0 0 28px;
    font-size: 17px;
}
.final-cta .hero-cta {
    background: var(--color-paper);
    color: var(--color-accent);
}
.final-cta .hero-cta:hover { background: white; }

/* ──────── Footer ──────── */
footer.foot {
    padding: 36px 32px;
    border-top: 0.5px solid var(--color-rule);
}
.foot-inner {
    max-width: var(--col-wide);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--color-muted);
}
.foot a { color: var(--color-muted); border-bottom-color: var(--color-rule); }

/* ──────── Mobile ──────── */
@media (max-width: 720px) {
    section { padding: 56px 22px; }
    .hero { padding-top: 56px; }
    .nav-inner { padding: 14px 22px; }
    .steps { grid-template-columns: 1fr; gap: 28px; }
    .facts-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .quotes .col-wide { grid-template-columns: 1fr; gap: 32px; }
    .ba { grid-template-columns: 1fr; gap: 12px; }
    .ba__arrow { display: block; }
}