/* ValleyUnit Layout — Nav, sections, wraps, hero, footer, CTA, grids.
   Structural only. Component internals live in components.css. */

/* -- Wraps -- */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--sp-8); }
.wrap-narrow { max-width: var(--max-w-narrow); margin: 0 auto; padding: 0 var(--sp-8); }

/* ================================================================
   SECTION BACKGROUNDS
   s-light  = white/off-white (default page background)
   s-tint   = subtle blue tint
   s-dark   = deep navy with light text
   s-dark2  = slightly lighter navy
   ================================================================ */
.s-light { background: var(--section-bg); padding: var(--section-py) 0; }
.s-tint  { background: var(--section-bg-tinted); padding: var(--section-py) 0; }

.s-dark {
    background: var(--dark-bg);
    padding: var(--section-py) 0;
    color: var(--dark-text);
}
.s-dark2 {
    background: var(--dark-bg-2);
    padding: var(--section-py) 0;
    color: var(--dark-text);
}

/* Remove top padding when stacking adjacent dark sections */
.s-dark--no-top { padding-top: 0; }

/* Dark section text overrides */
.s-dark h1, .s-dark h2, .s-dark h3, .s-dark h4,
.s-dark2 h1, .s-dark2 h2, .s-dark2 h3, .s-dark2 h4 {
    color: var(--dark-text);
}
.s-dark p, .s-dark2 p {
    color: var(--dark-text-2);
}
.s-dark .eyebrow { color: var(--accent-2-light); }
.s-dark2 .eyebrow { color: var(--accent-light); }

/* -- Section header -- */
.sh { text-align: center; max-width: 760px; margin: 0 auto var(--sp-16); }
.sh h2 {
    font-size: var(--text-section); font-weight: var(--weight-black);
    letter-spacing: var(--tracking-tight); line-height: var(--leading-tight);
    margin-bottom: var(--sp-5);
}
.sh p {
    font-size: var(--text-body-resp); line-height: var(--leading-relaxed);
}
/* Light sections: explicit text colors */
.s-light .sh h2, .s-tint .sh h2 { color: var(--page-text); }
.s-light .sh p, .s-tint .sh p { color: var(--page-text-2); }

/* Section icon */
.sh-icon {
    width: 56px; height: 56px; border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto var(--sp-5);
    background: var(--accent-subtle); color: var(--accent);
}
.s-dark .sh-icon, .s-dark2 .sh-icon {
    background: rgba(255, 255, 255, 0.08); color: var(--accent-light);
}
.sh-icon svg { width: 28px; height: 28px; }

/* Eyebrow label */
.eyebrow {
    font-size: var(--text-sm); font-weight: var(--weight-medium);
    color: var(--accent); margin-bottom: var(--sp-4); display: block;
    text-transform: uppercase; letter-spacing: var(--tracking-caps);
}

/* ================================================================
   NAVIGATION (glassmorphism on scroll)
   ================================================================ */
.nav, .site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-nav);
    padding: var(--sp-5) 0;
    transition: background var(--dur-slow) var(--ease-std),
                padding var(--dur-slow) var(--ease-std),
                border-color var(--dur-slow) var(--ease-std),
                box-shadow var(--dur-slow) var(--ease-std);
    border-bottom: 1px solid transparent;
}
/* Nav over hero (transparent, light text) */
.nav:not(.scrolled) .nav-logo,
.nav:not(.scrolled) .nav-logo span,
.site-header:not(.scrolled) .nav-logo,
.site-header:not(.scrolled) .nav-logo span { color: var(--dark-text); }
.nav:not(.scrolled) .nav-links a:not(.btn-p):not(.btn-o),
.site-header:not(.scrolled) .nav-links a:not(.btn-p):not(.btn-o) { color: var(--dark-text); }
.nav:not(.scrolled) .nav-links a:not(.btn-p):not(.btn-o):hover,
.site-header:not(.scrolled) .nav-links a:not(.btn-p):not(.btn-o):hover { color: #FFFFFF; }
.nav:not(.scrolled) .nav-links a.active,
.site-header:not(.scrolled) .nav-links a.active { color: var(--dark-text); }
.nav:not(.scrolled) .btn-o,
.site-header:not(.scrolled) .btn-o { color: var(--dark-text); border-color: var(--dark-text-muted); }
.nav:not(.scrolled) .btn-o:hover,
.site-header:not(.scrolled) .btn-o:hover { color: #FFFFFF; border-color: var(--dark-text-2); }
.nav:not(.scrolled) .hamburger svg,
.nav:not(.scrolled) .mobile-menu-btn svg,
.site-header:not(.scrolled) .hamburger svg,
.site-header:not(.scrolled) .mobile-menu-btn svg { color: var(--dark-text); }

.nav.scrolled, .site-header.scrolled {
    background: var(--nav-bg-scrolled);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    padding: var(--sp-3) 0;
    border-bottom-color: var(--nav-border-scrolled);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 var(--sp-8);
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    display: flex; align-items: center; gap: var(--sp-2);
    font-size: var(--text-2xl); font-weight: var(--weight-black);
    color: var(--page-text); text-decoration: none;
    letter-spacing: var(--tracking-snug);
}
.nav-logo img { height: 28px; width: auto; }
.nav-logo span { color: var(--page-text); }
.nav-links { display: flex; align-items: center; gap: var(--sp-7); }
.nav-links a:not(.btn-p):not(.btn-o) {
    color: var(--nav-text); text-decoration: none;
    font-size: var(--text-base); font-weight: var(--weight-normal);
    transition: color var(--dur-base);
    position: relative;
}
.nav-links a:not(.btn-p):not(.btn-o)::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 2px; background: var(--accent);
    transition: width var(--dur-slow) var(--ease-out);
    border-radius: 1px;
}
.nav-links a:not(.btn-p):not(.btn-o):hover { color: var(--nav-text-hover); }
.nav-links a:not(.btn-p):not(.btn-o):hover::after { width: 100%; }
.nav-links a.active { color: var(--nav-text-hover); }
.nav-links a.active::after { width: 100%; }

/* Hamburger */
.hamburger, .mobile-menu-btn {
    display: none; background: none; border: none;
    cursor: pointer; padding: var(--sp-1);
}
.hamburger span, .mobile-menu-btn span {
    display: block; width: 22px; height: 2px;
    background: var(--page-text); margin: 5px 0;
    border-radius: 1px; transition: all var(--dur-slow);
}

/* ================================================================
   HERO — Split layout (text left, asset right)
   ================================================================ */
.hero {
    min-height: auto;
    padding: 140px 0 var(--sp-20);
    position: relative;
    overflow: hidden;
    /* Centered by default. .hero .sub/.def/p already center via auto margins and
       .hero-cta/.hero-proof via justify-content; only text-align was missing, which
       left bare-<h1> heroes (Compare, Faq, Features, legal pages) flush left while
       their sub sat centered. */
    text-align: center;
}
/* Gradient glow behind hero */
.hero::before {
    content: '';
    position: absolute;
    bottom: -20%; left: 50%; width: 140%; height: 60%;
    transform: translateX(-50%);
    background: var(--grad-hero);
    pointer-events: none;
    animation: gradient-pulse 12s ease-in-out infinite;
    z-index: 0;
}
.hero > * { position: relative; z-index: 1; }

/* Centered hero (default) */
.hero-text {
    text-align: center; max-width: 880px;
    margin: 0 auto var(--sp-16); padding: 0 var(--sp-8);
}
.hero h1 {
    font-size: var(--text-hero); font-weight: var(--weight-black);
    letter-spacing: var(--tracking-tighter); line-height: var(--leading-snug);
    margin-bottom: var(--sp-6);
}
.s-light .hero h1, .s-tint .hero h1 { color: var(--page-text); }
.s-dark .hero h1 { color: var(--dark-text); }
.hero .sub {
    font-size: var(--text-sub); line-height: var(--leading-relaxed);
    max-width: 640px; margin: 0 auto var(--sp-4);
}
.s-light .hero .sub, .s-tint .hero .sub { color: var(--page-text-2); }
.s-dark .hero .sub { color: var(--dark-text-2); }
.hero .def {
    font-size: var(--text-small-resp);
    max-width: 680px; margin: 0 auto 32px; line-height: var(--leading-relaxed);
}
.s-light .hero .def { color: var(--page-text-2); }
.s-dark .hero .def { color: var(--dark-text-2); }
.hero .def strong { color: inherit; filter: brightness(1.2); }
.hero p {
    font-size: var(--text-body-resp);
    max-width: 560px; margin: 0 auto; line-height: var(--leading-relaxed);
}
.hero-cta {
    display: flex; gap: var(--sp-4); justify-content: center;
    flex-wrap: wrap; margin-bottom: var(--sp-7);
}
.hero-proof { display: flex; gap: var(--sp-8); justify-content: center; flex-wrap: wrap; }
.hero-proof-item {
    display: flex; align-items: center; gap: var(--sp-2);
    font-size: var(--text-sm);
}
.s-light .hero-proof-item { color: var(--page-text-2); }
.s-dark .hero-proof-item { color: var(--dark-text-2); }
.hero-proof-item svg { width: 16px; height: 16px; color: var(--ok); flex-shrink: 0; }

/* ================================================================
   SPLIT LAYOUT (text + image side by side)
   ================================================================ */
.split {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: var(--sp-16); align-items: center;
    max-width: var(--max-w); margin: 0 auto;
    padding: 0 var(--sp-8);
}
.split-reverse { direction: rtl; }
.split-reverse > * { direction: ltr; }
.split-text h2 {
    font-size: var(--text-section-sm); font-weight: var(--weight-black);
    letter-spacing: var(--tracking-tight); line-height: var(--leading-tight);
    margin-bottom: var(--sp-5);
}
.split-text p {
    font-size: var(--text-body-resp); line-height: var(--leading-relaxed);
    margin-bottom: var(--sp-6);
}
.split-img {
    border-radius: var(--radius-xl); overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.s-dark .split-img { box-shadow: var(--shadow-dark-lg); }

/* Photograph in a split slot. Mirror when the subject faces away from
   the copy (no text in frame, so flipping is safe). */
.split-img .photo { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }
.split-img .photo--flip { transform: scaleX(-1); }

/* Vertical stack of feat-cards filling one side of a split */
.feat-stack { display: grid; gap: var(--sp-4); }

/* Image holds its place while a long stack scrolls past it.
   96px clears the fixed nav; unstuck on narrow screens below. */
.split-img-sticky { position: sticky; top: 96px; align-self: start; }
.split-img-sticky img { transition: opacity var(--dur-base) ease; }
/* Storyboard splits: extend the row below the last card so the sticky
   image still has travel room while the last card is being read. */
@media (min-width: 901px) {
    [data-storyboard] .feat-stack { padding-bottom: 200px; }
}

/* ================================================================
   PHOTO BAND (full-bleed photograph behind a dark scrim)
   Pair with .s-dark and set --photo on the section:
     <section class="s-dark s-photo" style="--photo: url('...')">
   ================================================================ */
.s-photo {
    background-color: var(--dark-bg);
    background-image: var(--scrim-band-v), var(--photo);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
/* Cards on a photo band need their own ground -- the standard 5% white
   card fill lets the photograph read straight through the copy.
   Doubled .s-photo outranks the .s-dark card rules in components.css,
   which loads after this file. */
/* Section-header, hero subtitles, and prose: muted grey drowns on bright photo areas. */
.s-photo.s-photo .sh p,
.s-photo.s-photo .hero-text .sub,
.s-photo.s-photo .prose p {
    color: var(--dark-text);
    text-shadow: 0 1px 8px rgba(11, 17, 32, 0.8);
}
.s-photo.s-photo .trio-item,
.s-photo.s-photo .bento-item,
.s-photo.s-photo .feat-card,
.s-photo.s-photo .tco-card {
    background: rgba(11, 17, 32, 0.72);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-color: rgba(255, 255, 255, 0.12);
}

/* ================================================================
   BENTO GRID
   ================================================================ */
.bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-5);
    max-width: var(--max-w); margin: 0 auto;
    padding: 0 var(--sp-8);
}
.bento-item {
    padding: var(--sp-8);
    border-radius: var(--radius-xl);
    transition: transform var(--dur-slow) var(--ease-out),
                box-shadow var(--dur-slow) var(--ease-out);
}
/* Light section bento */
.s-light .bento-item, .s-tint .bento-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}
.s-light .bento-item:hover, .s-tint .bento-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
/* Dark section bento */
.s-dark .bento-item, .s-dark2 .bento-item {
    background: var(--card-bg-dark);
    border: 1px solid var(--card-border-dark);
}
.s-dark .bento-item:hover, .s-dark2 .bento-item:hover {
    transform: translateY(-4px);
    border-color: var(--card-border-dark-hover);
    box-shadow: var(--shadow-dark-md);
}
/* Span variants */
.bento-wide { grid-column: span 2; }
.bento-tall { grid-row: span 2; }

/* ================================================================
   STATS ROW
   ================================================================ */
.stats {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-5); text-align: center;
    max-width: var(--max-w); margin: 0 auto;
    padding: 0 var(--sp-8);
}
.stat-value {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: var(--weight-black);
    letter-spacing: var(--tracking-tighter);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.s-light .stat-value { color: var(--accent); }
.s-dark .stat-value, .s-dark2 .stat-value { color: var(--accent-2-light); }
.stat-label {
    font-size: var(--text-base);
    margin-top: var(--sp-2);
}
.s-light .stat-label { color: var(--page-text-2); }
.s-dark .stat-label, .s-dark2 .stat-label { color: var(--dark-text-2); }

/* TIMELINE lives in components.css (shared with HowItWorks) */

/* ================================================================
   CTA SECTION (dark contrast, gradient glow)
   ================================================================ */
.cta-end {
    background: var(--grad-cta);
    padding: var(--section-py-lg) 0; text-align: center;
    position: relative; overflow: hidden;
}
.cta-end::before {
    content: '';
    position: absolute; bottom: 0; left: 50%; width: 120%; height: 50%;
    transform: translateX(-50%);
    background: radial-gradient(ellipse at 50% 100%, rgba(54, 97, 193, 0.2) 0%, transparent 60%);
    pointer-events: none;
}
.cta-end > * { position: relative; z-index: 1; }
.cta-end h2 {
    font-size: var(--text-hero-sub); font-weight: var(--weight-black);
    letter-spacing: var(--tracking-tight); margin-bottom: 36px;
    color: var(--contrast-text);
}
.cta-end h3, .cta-end h4 { color: var(--contrast-text); }
.cta-end p { font-size: var(--text-xl); color: var(--contrast-text-2); margin-bottom: 36px; }

/* ================================================================
   FOOTER (dark contrast)
   ================================================================ */
.site-footer, footer {
    background: var(--contrast-bg); padding: var(--sp-20) 0 var(--sp-10);
}
.site-footer h1, .site-footer h2, .site-footer h3, .site-footer h4 {
    color: var(--contrast-text);
}
.fgrid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: var(--sp-10); margin-bottom: 56px;
}
.fbrand p { font-size: var(--text-base); color: var(--contrast-text-2); margin-top: var(--sp-3); }
.fbrand a { color: var(--accent-light); text-decoration: none; }
.fbrand a:hover { color: var(--dark-text); }
.fcol { display: flex; flex-direction: column; gap: 10px; }
.fcol strong {
    font-size: var(--text-sm); text-transform: uppercase;
    letter-spacing: var(--tracking-wide); color: var(--contrast-text-2);
    margin-bottom: var(--sp-1);
}
.fcol a {
    color: var(--contrast-text-2); text-decoration: none;
    font-size: var(--text-base); transition: color var(--dur-base);
}
.fcol a:hover { color: var(--contrast-text); }
.fbot {
    border-top: 1px solid var(--contrast-border);
    padding-top: var(--sp-6);
}
.fbot p { font-size: var(--text-sm); color: var(--contrast-text-2); }

/* ================================================================
   RESPONSIVE — 900px
   ================================================================ */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-right .btn-o { display: none; }
    /* 44px minimum touch target */
    .hamburger, .mobile-menu-btn {
        display: flex; flex-direction: column; justify-content: center; align-items: center;
        width: 44px; height: 44px; padding: 0;
        position: relative; z-index: 100; /* stay above the open menu overlay (99) */
    }

    /* The scrolled header's backdrop-filter makes it the containing block for
       fixed descendants, trapping the full-screen menu inside the 68px bar. */
    .nav:has(.nav-links.mobile-open),
    .site-header:has(.nav-links.mobile-open) {
        backdrop-filter: none; -webkit-backdrop-filter: none;
    }

    .nav-links.mobile-open {
        display: flex; flex-direction: column;
        position: fixed; top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(248, 250, 252, 0.97);
        backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
        justify-content: center; align-items: center;
        gap: var(--sp-6); z-index: 99;
    }
    .nav-links.mobile-open a:not(.btn) { font-size: var(--text-3xl); color: var(--page-text); }
    .nav-links.mobile-open a::after { display: none; }

    .hero { padding: 140px 0 60px; }
    .hero h1 { font-size: clamp(2rem, 7vw, 3rem); }

    .split { grid-template-columns: 1fr; gap: var(--sp-10); }
    .split-reverse { direction: ltr; }
    .split-img-sticky { position: static; }
    .bento { grid-template-columns: 1fr; }
    .bento-wide { grid-column: span 1; }
    .stats { grid-template-columns: repeat(2, 1fr); }

    .fgrid { grid-template-columns: 1fr 1fr; }
}

/* ================================================================
   RESPONSIVE — 600px
   ================================================================ */
@media (max-width: 600px) {
    .wrap, .wrap-narrow { padding: 0 var(--sp-5); }
    .nav-inner { padding: 0 var(--sp-5); }
    .hero-text { padding: 0 var(--sp-5); }
    .hero { padding: 120px 0 var(--sp-12); }
    .hero-proof { flex-direction: column; gap: var(--sp-3); align-items: center; }
    .split { padding: 0 var(--sp-5); }
    .bento { padding: 0 var(--sp-5); }
    .stats { grid-template-columns: 1fr 1fr; padding: 0 var(--sp-5); }
    .timeline { padding: 0 var(--sp-5); }
    .fgrid { grid-template-columns: 1fr; }
}