/* ========================================
   Froza AC Promo — Editorial Landing Page
   Font: Libre Baskerville (editorial) + Inter (UI)
   ======================================== */

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

:root {
    --ink: #1a1a1a;
    --ink-soft: #3d3d3d;
    --ink-muted: #6b6b6b;
    --border: #e0e0e0;
    --surface: #ffffff;
    --warm: #faf8f5;
    --slate: #f0f2f5;
    --dark: #111111;
    --dark-surface: #1c1c1c;
    --accent: #c8553d;
    --accent-hover: #a94430;
    --accent-light: rgba(200,85,61,.08);
    --radius: 12px;
    --radius-lg: 20px;
    --shadow-soft: 0 2px 12px rgba(0,0,0,.05);
    --shadow-md: 0 8px 30px rgba(0,0,0,.08);
    --shadow-hero: 0 24px 60px rgba(0,0,0,.12);
    --ff-serif: 'Libre Baskerville', Georgia, serif;
    --ff-sans: 'Inter', -apple-system, sans-serif;
    --ease: cubic-bezier(.25,.46,.45,.94);
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--ff-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--ink);
    background: var(--surface);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* --- Layout --- */
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 680px; }
.center { text-align: center; }

/* --- Typography --- */
h1 {
    font-family: var(--ff-serif);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -.015em;
    color: var(--ink);
}
h2 {
    font-family: var(--ff-serif);
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 18px;
    color: var(--ink);
}
h3 {
    font-family: var(--ff-sans);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--ink);
}
p { margin-bottom: 16px; color: var(--ink-soft); }

.section-tag {
    display: inline-block;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--accent);
    margin-bottom: 10px;
}
.section-tag--light { color: rgba(255,255,255,.5); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .92rem;
    border-radius: 50px;
    transition: all .25s var(--ease);
    text-align: center;
    cursor: pointer;
}
.btn--primary {
    background: var(--accent);
    color: #fff;
    padding: 15px 36px;
    box-shadow: 0 4px 14px rgba(200,85,61,.25);
}
.btn--primary:hover {
    background: var(--accent-hover);
    animation: none;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 8px 24px rgba(200,85,61,.4);
}
.btn--header {
    background: var(--ink);
    color: #fff;
    padding: 9px 22px;
    font-size: .8rem;
}
.btn--header:hover { background: #333; }
.btn--white {
    background: #fff;
    color: var(--ink);
    padding: 15px 36px;
}
.btn--white:hover {
    background: var(--slate);
    animation: none;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 8px 24px rgba(0,0,0,.15);
}
.btn--lg { font-size: 1.05rem; padding: 18px 44px; }
.btn--full { width: 100%; }

/* Pulse animation on CTA buttons */
.btn--primary, .btn--white, .btn--lg {
    animation: btn-pulse 2s ease-in-out infinite;
}
@keyframes btn-pulse {
    0%   { transform: scale(1);    box-shadow: 0 4px 14px rgba(200,85,61,.25); }
    50%  { transform: scale(1.045); box-shadow: 0 6px 24px rgba(200,85,61,.4); }
    100% { transform: scale(1);    box-shadow: 0 4px 14px rgba(200,85,61,.25); }
}
.btn--white {
    animation-name: btn-pulse-white;
}
@keyframes btn-pulse-white {
    0%   { transform: scale(1);    box-shadow: 0 4px 14px rgba(0,0,0,.1); }
    50%  { transform: scale(1.045); box-shadow: 0 6px 24px rgba(0,0,0,.18); }
    100% { transform: scale(1);    box-shadow: 0 4px 14px rgba(0,0,0,.1); }
}

.cta-sub {
    font-size: .75rem;
    color: var(--ink-muted);
    margin-top: 10px;
    margin-bottom: 0;
}

/* --- Announcement Bar --- */
.announce {
    background: var(--ink);
    color: #fff;
    padding: 8px 0;
}
.announce-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: .72rem;
    font-weight: 600;
}

/* --- Header --- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo { height: 20px; width: auto; }

/* --- Hero --- */
.hero {
    padding: 48px 0 40px;
    background: linear-gradient(175deg, var(--warm) 0%, var(--surface) 60%);
}
.hero .wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.hero-content { max-width: 520px; margin-bottom: 32px; }
.kicker {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--accent);
    margin-bottom: 14px;
}
h1 { margin-bottom: 18px; }
.hero-lead {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--ink-soft);
    margin-bottom: 28px;
}
.hero-cta-group { max-width: 360px; margin: 0 auto; }
.hero-product {
    width: 260px;
    height: auto;
    filter: drop-shadow(0 24px 48px rgba(0,0,0,.12));
}

/* --- Press --- */
.press {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.press-title {
    font-size: .65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--ink-muted);
    text-align: center;
    margin-bottom: 14px;
}
/* Marquee */
.marquee-wrap {
    overflow: hidden;
    width: 100%;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 10%, #000 90%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0%, #000 10%, #000 90%, transparent 100%);
}
.marquee-track {
    display: flex;
    align-items: center;
    gap: 48px;
    width: max-content;
    animation: marquee 30s linear infinite;
    will-change: transform;
    opacity: .35;
}
.marquee-track img {
    flex-shrink: 0;
    height: 12px;
    width: auto;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(calc(-100% / 6)); }
}

/* --- Story Block (Problem) --- */
.story-block {
    padding: 64px 0;
}
.story-block p {
    font-family: var(--ff-serif);
    font-size: .95rem;
    line-height: 1.85;
    color: var(--ink-soft);
}
.story-block p strong { color: var(--ink); }

/* --- Meet Section --- */
.meet-section {
    padding: 48px 0 64px;
    background: var(--warm);
}
.meet-section .wrap {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.meet-img {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hero);
}
.meet-text p {
    font-size: .95rem;
    color: var(--ink-soft);
}

/* --- How Section --- */
.how-section {
    padding: 64px 0;
}
.how-demo {
    text-align: center;
    margin: 32px 0;
}
.demo-gif {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.how-steps {
    max-width: 540px;
    margin: 0 auto;
}
.how-step {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 28px;
}
.how-step:last-child { margin-bottom: 0; }
.step-marker {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: #fff;
    font-weight: 800;
    font-size: .85rem;
    border-radius: 50%;
}
.how-step h3 { margin-bottom: 4px; }
.how-step p { font-size: .9rem; margin: 0; }

/* --- Editorial Image Split --- */
.editorial-img-section {
    padding: 64px 0;
}
.editorial-split {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.editorial-img {
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.editorial-text h2 { margin-bottom: 14px; }
.editorial-text p { font-size: .95rem; }

/* --- BG helpers --- */
.bg-dark {
    background: var(--dark);
    color: #fff;
}
.bg-dark h2, .bg-dark h3, .bg-dark p { color: #fff; }
.bg-dark p { color: rgba(255,255,255,.7); }
.bg-dark h2 { color: #fff; }
.bg-warm { background: var(--warm); }
.bg-slate { background: var(--slate); }

/* --- Features Grid --- */
.features-section {
    padding: 64px 0;
}
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 32px;
}
.feat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.feat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.feat-card img {
    width: 52px;
    height: 52px;
    margin: 0 auto 14px;
    border-radius: 8px;
}
.feat-card h3 { font-size: .92rem; }
.feat-card p { font-size: .85rem; margin: 0; color: var(--ink-muted); }

/* --- Lifestyle Card --- */
.lifestyle-block {
    padding: 48px 0;
    background: var(--warm);
}
.lifestyle-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--surface);
}
.lifestyle-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}
.lifestyle-body {
    padding: 28px 24px;
}
.lifestyle-body h3 {
    font-family: var(--ff-serif);
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.lifestyle-body p { font-size: .92rem; margin: 0; }

/* --- Split Banners --- */
.split-banner {
    overflow: hidden;
}
.split-banner-inner {
    display: flex;
    flex-direction: column;
    min-height: 280px;
}
.split-half {
    position: relative;
    flex: 1;
    min-height: 280px;
}
.split-half--img {
    overflow: hidden;
}
.split-half--img .split-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.split-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 32px 28px;
    z-index: 2;
}
.split-overlay--left {
    background: linear-gradient(90deg, rgba(150,165,178,.92) 0%, rgba(150,165,178,.6) 60%, transparent 100%);
}
.split-overlay--right {
    background: linear-gradient(270deg, rgba(110,120,130,.92) 0%, rgba(110,120,130,.6) 60%, transparent 100%);
}
.split-half--content {
    display: flex;
    align-items: center;
    justify-content: center;
}
.split-half--dark {
    background: #7e878f;
}
.split-half--light {
    background: #b0bcc6;
}
.split-text-block {
    padding: 40px 28px;
    max-width: 460px;
}
.split-tag {
    font-size: .65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .16em;
    color: rgba(255,255,255,.75);
    margin-bottom: 10px;
}
.split-heading {
    font-family: var(--ff-serif);
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.25;
    color: #fff;
    margin-bottom: 12px;
}
.split-body {
    font-size: .88rem;
    line-height: 1.6;
    color: rgba(255,255,255,.85);
    max-width: 320px;
}

/* --- Energy Section (legacy — kept for stat row) --- */
.stat-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}
.stat { text-align: center; }
.stat-big {
    display: block;
    font-family: var(--ff-serif);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 2px;
}
.stat-label {
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--ink-muted);
}
.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--border);
}

/* --- Comparison (card-column style) --- */
.compare-section {
    padding: 64px 0;
    background: var(--slate);
}
.cmp-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    margin-top: 36px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

/* Column headers */
.cmp-corner {
    background: transparent;
}
.cmp-col-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 18px 6px 14px;
    font-size: .68rem;
    font-weight: 700;
    color: #fff;
    text-align: center;
    border-radius: 14px 14px 0 0;
    position: relative;
    z-index: 1;
}
.cmp-col-head img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    position: relative;
    top: -8px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,.15));
}
.cmp-col-head--win {
    background: #8a94a8;
}
.cmp-col-head--rival {
    background: #3a3d42;
}

/* Feature label cells */
.cmp-feat {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 12px;
    font-weight: 600;
    font-size: .76rem;
    color: var(--ink);
    border-top: 1px solid var(--border);
    background: var(--surface);
}
.cmp-dot {
    flex-shrink: 0;
}

/* Value cells */
.cmp-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px 12px;
    border-top: 1px solid rgba(255,255,255,.06);
}
.cmp-cell--win {
    background: #8a94a8;
}
.cmp-cell--rival {
    background: #3a3d42;
}
.cmp-check, .cmp-cross {
    display: block;
}

/* --- Showcase (dark) --- */
.showcase {
    padding: 64px 0;
    background: linear-gradient(160deg, #111 0%, #1e1e1e 100%);
}
.showcase-product {
    width: 240px;
    margin: 0 auto 28px;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,.4));
}
.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 320px;
    margin: 0 auto 28px;
}
.spec-item {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 8px;
    padding: 14px 10px;
    text-align: center;
}
.spec-val {
    display: block;
    font-family: var(--ff-serif);
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 2px;
}
.spec-name {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: rgba(255,255,255,.45);
}

/* --- Guarantee --- */
.guarantee {
    padding: 56px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.guarantee-img {
    width: 110px;
    height: 110px;
    margin: 0 auto 20px;
}

/* --- Reviews --- */
.reviews-section {
    padding: 64px 0;
}
.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 32px;
}
.review-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}
.review-photo {
    width: 100%;
    height: 220px;
    object-fit: cover;
}
.review-content {
    padding: 22px;
}
.review-content h3 {
    font-size: .95rem;
    margin: 10px 0 8px;
}
.review-content p {
    font-family: var(--ff-serif);
    font-size: .88rem;
    font-style: italic;
    line-height: 1.7;
    color: var(--ink-soft);
    margin-bottom: 14px;
}
.review-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .82rem;
}
.review-meta strong { color: var(--ink); }
.verified-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: .73rem;
    color: var(--ink-muted);
}

/* --- FAQ --- */
.faq-section {
    padding: 64px 0;
}
.faq-list { margin-top: 28px; }
.faq-item {
    border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    font-size: .92rem;
    font-weight: 600;
    text-align: left;
    color: var(--ink);
    transition: color .2s;
}
.faq-q:hover { color: var(--accent); }
.faq-toggle {
    font-size: 1.3rem;
    font-weight: 300;
    color: var(--ink-muted);
    transition: transform .3s var(--ease);
    flex-shrink: 0;
    margin-left: 16px;
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s var(--ease), padding .35s var(--ease);
}
.faq-a p {
    padding-bottom: 18px;
    font-size: .88rem;
    color: var(--ink-soft);
    margin: 0;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-item.open .faq-a { max-height: 250px; }

/* --- Final CTA --- */
.final-cta {
    padding: 64px 0;
    background: linear-gradient(180deg, var(--warm) 0%, var(--surface) 100%);
}
.final-product {
    width: 150px;
    margin: 0 auto 20px;
    filter: drop-shadow(0 12px 24px rgba(0,0,0,.1));
}
.final-cta h2 { margin-bottom: 12px; }
.final-cta p { max-width: 480px; margin: 0 auto 28px; }

/* --- Footer --- */
.footer {
    padding: 32px 0;
    background: var(--dark);
    color: rgba(255,255,255,.45);
}
.footer-logo { margin: 0 auto 14px; opacity: .5; }
.footer-disc { font-size: .65rem; margin-bottom: 6px; color: rgba(255,255,255,.28); }
.footer-copy { font-size: .7rem; margin: 0; }

/* --- Sticky Bar --- */
.sticky {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 10px 0;
    box-shadow: 0 -4px 20px rgba(0,0,0,.06);
    transform: translateY(100%);
    transition: transform .3s var(--ease);
}
.sticky.visible { transform: translateY(0); }
.sticky-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.sticky-left {
    display: flex;
    align-items: center;
    gap: 8px;
}
.sticky-left img:first-child { border-radius: 6px; }
.sticky-name { font-weight: 700; font-size: .85rem; }

/* --- Scroll fade --- */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Tablet (600px+)
   ======================================== */
@media (min-width: 600px) {
    .wrap { padding: 0 32px; }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.8rem; }
    .hero-product { width: 320px; }
    .features-grid { grid-template-columns: 1fr 1fr; }
    .editorial-split {
        flex-direction: row;
        align-items: center;
    }
    .editorial-split--reverse { flex-direction: row-reverse; }

    /* Split banners — side-by-side */
    .split-banner-inner {
        flex-direction: row;
        min-height: 280px;
    }
    .split-half {
        min-height: 280px;
    }
    .split-heading {
        font-size: 1.8rem;
    }
    .editorial-img-wrap { flex: 1; }
    .editorial-text { flex: 1; }
    .editorial-img { max-width: 100%; }
    .meet-section .wrap {
        flex-direction: row;
        align-items: center;
    }
    .meet-media { flex: 1; }
    .meet-text { flex: 1; }
    .meet-img { max-width: 100%; }
    .review-card {
        display: flex;
    }
    .review-photo {
        width: 200px;
        height: auto;
        min-height: 200px;
    }
    .lifestyle-img { height: 360px; }
    .specs-grid { grid-template-columns: repeat(4, 1fr); max-width: 480px; }

    /* Comparison — larger at tablet */
    .cmp-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
    .cmp-col-head { padding: 24px 12px 18px; font-size: .78rem; }
    .cmp-col-head img { width: 52px; height: 52px; top: -10px; }
    .cmp-feat { padding: 18px 20px; font-size: .88rem; gap: 10px; }
    .cmp-cell { padding: 18px 12px; }
}

/* ========================================
   Desktop (1024px+)
   ======================================== */
@media (min-width: 1024px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }
    .hero .wrap {
        flex-direction: row;
        text-align: left;
    }
    .hero-content { margin-bottom: 0; }
    .hero-cta-group { margin: 0; }
    .hero-product { width: 380px; }
    .features-grid { grid-template-columns: repeat(3, 1fr); }
    .btn--full { width: auto; min-width: 340px; }
    .cmp-grid { max-width: 720px; margin: 36px auto; }
    .stat-big { font-size: 2rem; }
    .lifestyle-img { height: 420px; }

    /* Split banners — larger text on desktop */
    .split-heading {
        font-size: 2rem;
    }
    .split-text-block {
        padding: 48px 40px;
    }
    .split-body {
        font-size: .92rem;
    }
}