/* ==========================================================================
   QA Boost Landing — qaboost.study
   ========================================================================== */

/* ---- Design tokens ---- */
:root {
    --color-bg-dark: #0A0A0B;
    --color-bg-elevated: #141416;
    --color-bg: #FAFAFA;
    --color-surface: #FFFFFF;
    --color-surface-muted: #F4F4F5;
    --color-text: #0F172A;
    --color-text-on-dark: #FAFAFA;
    --color-text-muted: #475569;
    --color-text-muted-on-dark: rgba(250, 250, 250, 0.65);
    --color-text-subtle: #64748B;
    --color-border: #E5E7EB;
    --color-border-dark: rgba(255, 255, 255, 0.08);
    --color-accent: #3B82F6;
    --color-accent-hover: #2563EB;
    --color-accent-glow: #60A5FA;
    --color-accent-soft: rgba(59, 130, 246, 0.12);
    --color-success: #34D399;
    --color-error: #DC2626;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.08);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;

    --font-display: 'Onest', var(--font-sans);
    --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

    --fs-xs: 0.8125rem;
    --fs-sm: 0.9375rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 1.875rem;
    --fs-3xl: 2.25rem;
    --fs-4xl: 3rem;
    --fs-5xl: 3.75rem;

    --lh-tight: 1.1;
    --lh-snug: 1.25;
    --lh-normal: 1.55;
    --lh-relaxed: 1.7;

    --container-max: 1200px;
    --container-narrow: 720px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 160ms;
    --duration-base: 240ms;
    --duration-slow: 480ms;

    --gradient-hero: radial-gradient(ellipse 80% 60% at 70% 10%, rgba(30, 58, 95, 0.8) 0%, transparent 60%),
                     radial-gradient(ellipse 50% 40% at 20% 80%, rgba(59, 130, 246, 0.12) 0%, transparent 50%);
    --noise: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
}

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    line-height: var(--lh-normal);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100dvh;
    overflow-x: hidden;
}

body.has-sticky-cta { padding-bottom: 72px; }

img, svg, video { display: block; max-width: 100%; height: auto; }
img { color: transparent; }

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }

ul, ol { list-style: none; padding: 0; }

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: var(--lh-tight);
    letter-spacing: -0.02em;
    color: var(--color-text);
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

.text-accent { color: var(--color-accent-glow); }

/* ---- Scroll progress ---- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-glow));
    z-index: 200;
    transition: width 80ms linear;
}

/* ---- Skip link ---- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--color-accent);
    color: #fff;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    z-index: 1000;
    transition: top var(--duration-fast) var(--ease-out);
}
.skip-link:focus { top: 16px; }

/* ---- Layout ---- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-5);
}
.container--narrow { max-width: var(--container-narrow); }

.section {
    padding: var(--space-8) 0;
    content-visibility: auto;
    contain-intrinsic-size: 1px 800px;
}
.section--dark {
    background: var(--color-bg-dark);
    color: var(--color-text-on-dark);
}
.section--dark h2, .section--dark h3 { color: var(--color-text-on-dark); }

.section__head { margin-bottom: var(--space-7); text-align: center; }
.section__head--left { text-align: left; }

.section__eyebrow {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}
.section__eyebrow--light { color: var(--color-accent-glow); }

.section__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--fs-2xl);
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
}
.section__title--left { margin-left: 0; }
.section__title--light { color: var(--color-text-on-dark); }

.section__lead {
    font-size: var(--fs-md);
    color: var(--color-text-muted);
    max-width: 640px;
    margin: 0 auto;
}
.section__lead--light { color: var(--color-text-muted-on-dark); }

@media (min-width: 768px) {
    .section { padding: var(--space-9) 0; }
    .section__title { font-size: var(--fs-3xl); }
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: background var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out),
                transform var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out),
                border-color var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}
.btn--sm { padding: 10px 18px; font-size: var(--fs-sm); }
.btn--lg { padding: 16px 28px; font-size: var(--fs-md); }

.btn--primary {
    background: var(--color-accent);
    color: #fff;
    box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.btn--ghost:hover {
    background: var(--color-surface);
    border-color: var(--color-text-subtle);
}

.btn--ghost-light {
    color: var(--color-text-on-dark);
    border-color: var(--color-border-dark);
}
.btn--ghost-light:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn--shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: btn-shimmer 3s var(--ease-in-out) infinite;
}

@keyframes btn-shimmer {
    0%, 100% { left: -100%; }
    50% { left: 120%; }
}

/* ---- Header ---- */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(250, 250, 250, 0.9);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid transparent;
    transition: background var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out),
                color var(--duration-base) var(--ease-out);
}
.header--on-hero {
    background: transparent;
    border-bottom-color: transparent;
    color: var(--color-text-on-dark);
}
.header--on-hero .nav__link { color: var(--color-text-muted-on-dark); }
.header--on-hero .nav__link:hover { color: var(--color-text-on-dark); }
.header--on-hero .burger span { background: var(--color-text-on-dark); }
.header--on-hero .logo { color: var(--color-text-on-dark); }


.header.is-scrolled {
    background: rgba(10, 10, 11, 0.92);
    border-bottom-color: var(--color-border-dark);
    color: var(--color-text-on-dark);
}
.header.is-scrolled .nav__link { color: var(--color-text-muted-on-dark); }
.header.is-scrolled .nav__link:hover { color: var(--color-text-on-dark); }
.header.is-scrolled .burger span { background: var(--color-text-on-dark); }
.header.is-scrolled .logo { color: var(--color-text-on-dark); }

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    height: 64px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--fs-md);
    letter-spacing: -0.02em;
}
.logo__icon { flex-shrink: 0; }
.logo__mark {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--color-accent-glow);
    letter-spacing: -0.03em;
}

.nav__list { display: none; gap: var(--space-5); }
.nav__link {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    transition: color var(--duration-fast) var(--ease-out);
}
.nav__link:hover { color: var(--color-text); }

.header__cta { display: none; }

.burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: var(--radius-sm);
}
.burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--duration-base) var(--ease-out),
                opacity var(--duration-base) var(--ease-out);
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
    border-top: 1px solid var(--color-border-dark);
    background: var(--color-bg-dark);
    padding: var(--space-4) 0;
}
.mobile-nav__list { display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-nav__link {
    display: block;
    padding: var(--space-3) var(--space-5);
    font-size: var(--fs-md);
    color: var(--color-text-on-dark);
    border-radius: var(--radius-sm);
    transition: background var(--duration-fast) var(--ease-out);
}
.mobile-nav__link:hover { background: var(--color-bg-elevated); }

@media (min-width: 768px) {
    .nav__list { display: flex; }
    .header__cta { display: inline-flex; }
    .burger { display: none; }
    .mobile-nav { display: none; }
}

/* ---- Hero ---- */
.hero {
    padding: var(--space-7) 0 var(--space-8);
    position: relative;
    overflow: hidden;
    background: var(--color-bg-dark);
    color: var(--color-text-on-dark);
    margin-top: -64px;
    padding-top: calc(64px + var(--space-7));
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    pointer-events: none;
    z-index: 0;
}
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.025;
    background-image: var(--noise);
    pointer-events: none;
    z-index: 0;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-7);
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero__content { max-width: 580px; }

.hero__eyebrow {
    display: inline-block;
    font-size: var(--fs-sm);
    color: var(--color-accent-glow);
    font-weight: 600;
    margin-bottom: var(--space-4);
    padding: 6px 14px;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero__title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--fs-3xl);
    line-height: var(--lh-tight);
    margin-bottom: var(--space-5);
    letter-spacing: -0.02em;
    color: var(--color-text-on-dark);
}

.hero__subtitle {
    font-size: var(--fs-md);
    color: var(--color-text-muted-on-dark);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-6);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.hero__bullets {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    color: var(--color-text-muted-on-dark);
    font-size: var(--fs-sm);
}
.hero__bullets li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.hero__bullets svg { color: var(--color-success); flex-shrink: 0; }

/* Hero bento */
.hero-bento {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
    gap: var(--space-3);
    align-content: start;
}

.bento__cell {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out);
}
.bento__cell:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(59, 130, 246, 0.3);
}

.bento__cell--stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
    text-align: center;
}
.bento__stat-num {
    font-family: var(--font-display);
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: var(--color-accent-glow);
    line-height: 1;
}
.bento__stat-label {
    font-size: var(--fs-xs);
    color: var(--color-text-muted-on-dark);
    margin-top: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.bento__cell--logos {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    gap: var(--space-2);
}
.bento__logos-label {
    font-size: var(--fs-xs);
    color: var(--color-text-muted-on-dark);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.bento__logos-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
}
.bento__logos-list span {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--color-text-on-dark);
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm);
}

.bento__cell--code {
    grid-column: 1 / 3;
    padding: var(--space-4);
}
.bento__code-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--space-3);
}
.bento__code-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border-dark);
}
.bento__code-dot:nth-child(1) { background: #EF4444; }
.bento__code-dot:nth-child(2) { background: #F59E0B; }
.bento__code-dot:nth-child(3) { background: #22C55E; }
.bento__code-file {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted-on-dark);
    margin-left: var(--space-2);
}
.bento__code {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    line-height: 1.6;
    color: var(--color-text-muted-on-dark);
    overflow-x: auto;
}
.code-kw { color: var(--color-accent-glow); }
.code-fn { color: var(--color-success); }
.code-cm { color: rgba(250, 250, 250, 0.35); }

@media (min-width: 1024px) {
    .hero { padding-top: calc(64px + var(--space-9)); padding-bottom: var(--space-9); }
    .hero__inner { grid-template-columns: 1.05fr 0.95fr; gap: var(--space-8); }
    .hero__title { font-size: var(--fs-5xl); }
    .hero__subtitle { font-size: var(--fs-lg); }
    .hero__bullets { flex-direction: row; flex-wrap: wrap; gap: var(--space-5); }

    .hero-bento {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--space-4);
    }
    .bento__cell--code { grid-column: 1 / 3; }
}

/* ---- Trust bar ---- */
.trust-bar {
    position: relative;
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border-dark);
    border-bottom: 1px solid var(--color-border-dark);
    padding: var(--space-4) 0;
    overflow: hidden;
}
.trust-bar__track { overflow: hidden; }
.trust-bar__content {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    white-space: nowrap;
    animation: trust-marquee 30s linear infinite;
    width: max-content;
}
.trust-bar__content span {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-muted-on-dark);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.trust-bar__sep { color: var(--color-border-dark); }

.trust-bar__fade {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 1;
    pointer-events: none;
}
.trust-bar__fade--left {
    left: 0;
    background: linear-gradient(90deg, var(--color-bg-elevated), transparent);
}
.trust-bar__fade--right {
    right: 0;
    background: linear-gradient(270deg, var(--color-bg-elevated), transparent);
}

@keyframes trust-marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ---- About ---- */
.about__intro {
    margin-bottom: var(--space-8);
}
.about__bio {
    max-width: 720px;
    margin: 0 auto;
}

.about__bio p {
    color: var(--color-text-muted);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-4);
}
.about__lead {
    font-size: var(--fs-md);
    color: var(--color-text) !important;
    font-weight: 500;
}

.about__quote {
    margin-top: var(--space-5);
    padding: var(--space-5) var(--space-6);
    border-left: 3px solid var(--color-accent);
    background: var(--color-accent-soft);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.about__quote p {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--fs-lg);
    color: var(--color-text) !important;
    margin: 0;
    line-height: var(--lh-snug);
}

.about__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
    margin-bottom: var(--space-8);
}
.about__tags li {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 8px 14px;
    border-radius: 999px;
    transition: border-color var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
}
.about__tags li:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.about-bento {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}
.about-bento__cell {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
}
.about-bento__cell:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.about-bento__cell--wide { grid-column: 1; }
.about-bento__num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--fs-3xl);
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-2);
}
.about-bento__heading {
    font-size: var(--fs-md);
    margin-bottom: var(--space-2);
}
.about-bento__text {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}

@media (min-width: 768px) {
    .about-bento { grid-template-columns: 1.4fr 1fr 1fr; }
    .about-bento__cell--wide { grid-column: 1; grid-row: 1; }
}

/* ---- Formats ---- */
.formats__tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
    margin-bottom: var(--space-6);
    padding: 4px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-dark);
}
.formats__tab {
    flex: 1;
    min-width: 140px;
    padding: 12px 20px;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text-muted-on-dark);
    border-radius: var(--radius-md);
    transition: background var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out);
    text-align: center;
}
.formats__tab:hover { color: var(--color-text-on-dark); }
.formats__tab--active,
.formats__tab[aria-selected="true"] {
    background: var(--color-accent);
    color: #fff;
}

.formats__timeline {
    max-width: 480px;
    margin: 0 auto var(--space-6);
}
.formats__timeline-bar {
    height: 4px;
    background: var(--color-border-dark);
    border-radius: 2px;
    overflow: hidden;
}
.formats__timeline-fill {
    height: 100%;
    width: 50%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-glow));
    border-radius: 2px;
    transition: width var(--duration-slow) var(--ease-out);
}
.formats__timeline-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted-on-dark);
}

.formats__panels { max-width: 640px; margin: 0 auto; }
.formats__panel {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-xl);
    padding: var(--space-7);
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out);
}
.formats__panel[hidden] { display: none; }
.formats__panel--featured {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: var(--shadow-glow);
    background: linear-gradient(135deg, var(--color-bg-elevated) 0%, rgba(30, 58, 95, 0.3) 100%);
}

.format-panel__badge {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted-on-dark);
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
    margin-bottom: var(--space-4);
}
.format-panel__badge--accent {
    background: var(--color-accent);
    color: #fff;
}
.format-panel__title {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--color-text-on-dark);
    margin-bottom: var(--space-4);
}
.format-panel__goal,
.format-panel__result {
    font-size: var(--fs-sm);
    color: var(--color-text-muted-on-dark);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-4);
}
.format-panel__goal strong,
.format-panel__result strong { color: var(--color-text-on-dark); }
.format-panel__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--color-text-muted-on-dark);
    margin-bottom: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-dark);
}
.format-panel__list li {
    position: relative;
    padding-left: var(--space-5);
}
.format-panel__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 10px;
    height: 2px;
    background: var(--color-accent-glow);
    border-radius: 1px;
}
.formats__panel .btn { width: 100%; }

/* ---- Enterprise ---- */
.enterprise {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.enterprise__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-7);
}
.enterprise-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out);
}
.enterprise-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}
.enterprise-card--featured {
    border-color: rgba(59, 130, 246, 0.35);
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-accent-soft) 100%);
    box-shadow: var(--shadow-sm);
}
.enterprise-card--featured:hover {
    box-shadow: var(--shadow-md), var(--shadow-glow);
}
.enterprise-card__icon {
    color: var(--color-accent);
    margin-bottom: var(--space-4);
    opacity: 0.85;
}
.enterprise-card__tag {
    display: inline-block;
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-soft);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: var(--space-3);
}
.enterprise-card__title {
    font-size: var(--fs-lg);
    margin-bottom: var(--space-3);
}
.enterprise-card__text {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-4);
}
.enterprise-card__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    margin-top: auto;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}
.enterprise-card__list li {
    position: relative;
    padding-left: var(--space-5);
}
.enterprise-card__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 10px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
}

.enterprise__footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
}
.enterprise__note {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    line-height: var(--lh-relaxed);
}

@media (min-width: 768px) {
    .enterprise__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-5);
    }
    .enterprise-card--featured {
        grid-column: 1 / 3;
    }
}

/* ---- Process stepper ---- */
.stepper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    position: relative;
    max-width: 100%;
}
.stepper__step {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    position: relative;
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out);
}
.stepper__step:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.stepper__step--active {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}
.stepper__num {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-3);
}
.stepper__step--active .stepper__num { color: var(--color-accent-hover); }
.stepper__title {
    font-size: var(--fs-lg);
    margin-bottom: var(--space-2);
}
.stepper__text {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}

@media (min-width: 768px) {
    .stepper {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
    }
    .stepper::before {
        content: '';
        position: absolute;
        top: 36px;
        left: 12%;
        right: 12%;
        height: 2px;
        background: var(--color-border);
        z-index: 0;
    }
    .stepper__step { z-index: 1; }
}

/* ---- Cases bento ---- */
.cases { background: var(--color-surface); }

.cases-bento {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}
.cases-bento__cell {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out);
}
.cases-bento__cell:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}
.cases-bento__cell--featured {
    border-color: rgba(59, 130, 246, 0.3);
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-accent-soft) 100%);
}

.case-card__tag {
    display: inline-block;
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-soft);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: var(--space-3);
}
.case-card__icon {
    color: var(--color-accent);
    margin-bottom: var(--space-3);
    opacity: 0.7;
}
.case-card__title {
    font-size: var(--fs-md);
    margin-bottom: var(--space-3);
}
.case-card__text {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    flex-grow: 1;
    margin-bottom: var(--space-4);
}
.case-card__result {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    line-height: var(--lh-relaxed);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
    margin: 0;
}
.case-card__result strong { color: var(--color-text); font-weight: 600; }

@media (min-width: 768px) {
    .cases-bento {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
    }
    .cases-bento__cell--featured {
        grid-column: 1 / 3;
        grid-row: 1;
    }
}

/* ---- Reviews ---- */
.reviews__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}
.review {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out);
}
.review:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(59, 130, 246, 0.3);
}
.review__role {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text-muted-on-dark);
    margin-bottom: var(--space-4);
}
.review__from,
.review__to {
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
}
.review__to {
    background: rgba(59, 130, 246, 0.2);
    color: var(--color-accent-glow);
}
.review__role svg { color: var(--color-text-muted-on-dark); flex-shrink: 0; }
.review__text {
    color: var(--color-text-muted-on-dark);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-4);
    flex-grow: 1;
    font-style: italic;
}
.review__progress { margin-bottom: var(--space-4); }
.review__progress-label {
    font-size: var(--fs-xs);
    color: var(--color-text-muted-on-dark);
    display: block;
    margin-bottom: var(--space-2);
}
.review__progress-bar {
    height: 4px;
    background: var(--color-border-dark);
    border-radius: 2px;
    overflow: hidden;
}
.review__progress-fill {
    height: 100%;
    width: var(--progress, 0%);
    background: linear-gradient(90deg, var(--color-accent), var(--color-success));
    border-radius: 2px;
    transition: width 1s var(--ease-out);
}
.review__author {
    font-size: var(--fs-xs);
    color: var(--color-text-muted-on-dark);
}

@media (min-width: 768px) {
    .reviews__grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---- FAQ ---- */
.faq__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-7);
    align-items: start;
}
.faq__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.faq__item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
}
.faq__item[open] {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}
.faq__q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    font-weight: 600;
    font-size: var(--fs-md);
    cursor: pointer;
    list-style: none;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::marker { content: ''; }
.faq__icon {
    color: var(--color-text-muted);
    flex-shrink: 0;
    transition: transform var(--duration-base) var(--ease-out),
                color var(--duration-base) var(--ease-out);
}
.faq__item[open] .faq__icon {
    transform: rotate(180deg);
    color: var(--color-accent);
}
.faq__q:hover { color: var(--color-accent); }
.faq__a {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--duration-base) var(--ease-out);
}
.faq__item[open] .faq__a { grid-template-rows: 1fr; }
.faq__a > p {
    overflow: hidden;
    min-height: 0;
    padding: 0 var(--space-5);
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}
.faq__item[open] .faq__a > p { padding-bottom: var(--space-5); }

.faq__cta-card {
    background: var(--color-bg-dark);
    color: var(--color-text-on-dark);
    border-radius: var(--radius-xl);
    padding: var(--space-7);
    position: sticky;
    top: 88px;
}
.faq__cta-title {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--color-text-on-dark);
}
.faq__cta-text {
    font-size: var(--fs-sm);
    color: var(--color-text-muted-on-dark);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-5);
}
.faq__cta-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    font-size: var(--fs-sm);
    color: var(--color-text-muted-on-dark);
}
.faq__cta-list li {
    position: relative;
    padding-left: var(--space-5);
}
.faq__cta-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
}
.faq__cta-card .btn { width: 100%; }

@media (min-width: 1024px) {
    .faq__layout { grid-template-columns: 1.2fr 0.8fr; gap: var(--space-8); }
}

/* ---- Contact ---- */
.contact__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    align-items: start;
}
.contact__lead {
    font-size: var(--fs-md);
    color: var(--color-text-muted-on-dark);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-6);
}
.contact__checklist {
    margin-bottom: var(--space-6);
}
.contact__checklist-title {
    font-size: var(--fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted-on-dark);
    margin-bottom: var(--space-4);
}
.contact__checklist ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.contact__checklist li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-sm);
    color: var(--color-text-muted-on-dark);
}
.contact__checklist svg { color: var(--color-success); flex-shrink: 0; }

.contact__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}
.contact__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-sm);
    font-size: var(--fs-sm);
    color: var(--color-text-on-dark);
    transition: border-color var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out);
}
.contact__link:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-glow);
}

.form {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-xl);
    padding: var(--space-7);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}
.form__group { display: flex; flex-direction: column; position: relative; }
.form__group--float .form__label {
    position: absolute;
    left: 16px;
    top: 14px;
    font-size: var(--fs-base);
    color: var(--color-text-muted-on-dark);
    pointer-events: none;
    transition: transform var(--duration-fast) var(--ease-out),
                font-size var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out);
}
.form__group--float .form__input:focus ~ .form__label,
.form__group--float .form__input:not(:placeholder-shown) ~ .form__label {
    transform: translateY(-22px);
    font-size: var(--fs-xs);
    color: var(--color-accent-glow);
}
.form__hint { font-weight: 400; opacity: 0.7; }

.form__input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-sm);
    font-size: var(--fs-base);
    color: var(--color-text-on-dark);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
}
.form__input::placeholder { color: transparent; }
.form__input:hover { border-color: rgba(255, 255, 255, 0.15); }
.form__input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}
.form__input.is-invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12);
}
.form__error {
    min-height: 18px;
    font-size: var(--fs-xs);
    color: var(--color-error);
    line-height: 1.3;
    margin-top: var(--space-1);
}
.form__submit { width: 100%; }
.form__notice {
    font-size: var(--fs-sm);
    text-align: center;
    min-height: 20px;
    color: var(--color-success);
}
.form__notice.is-error { color: var(--color-error); }
.form__notice.is-success::before {
    content: '✓ ';
}

@media (min-width: 768px) {
    .contact__layout { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

/* ---- CTA band ---- */
.cta-band {
    background: linear-gradient(135deg, var(--color-accent) 0%, #1D4ED8 100%);
    padding: var(--space-8) 0;
    text-align: center;
}
.cta-band__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}
.cta-band__title {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: #fff;
}
.cta-band__text {
    font-size: var(--fs-md);
    color: rgba(255, 255, 255, 0.85);
    max-width: 480px;
}
.cta-band .btn {
    background: #fff;
    color: var(--color-accent-hover);
}
.cta-band .btn:hover {
    background: var(--color-bg);
    transform: translateY(-2px);
}

/* ---- Footer ---- */
.footer {
    background: var(--color-bg-dark);
    color: var(--color-text-muted-on-dark);
    padding: var(--space-8) 0 var(--space-5);
    border-top: 1px solid var(--color-border-dark);
}
.footer__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-7);
}
.footer__col .logo { color: var(--color-text-on-dark); }
.footer__tagline {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    margin-top: var(--space-3);
}
.footer__heading {
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-4);
    font-weight: 600;
    color: var(--color-text-on-dark);
}
.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-size: var(--fs-sm);
}
.footer__list a {
    transition: color var(--duration-fast) var(--ease-out);
}
.footer__list a:hover { color: var(--color-text-on-dark); }
.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border-dark);
    font-size: var(--fs-xs);
    text-align: center;
}
.footer__bottom a:hover { color: var(--color-text-on-dark); }

@media (min-width: 768px) {
    .footer__inner { grid-template-columns: 1.4fr 1fr 1fr; }
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

/* ---- Privacy modal ---- */
.privacy {
    position: fixed;
    inset: 0;
    z-index: 300;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
}
.privacy[hidden] { display: none; }
.privacy__inner {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--space-7);
    max-width: 560px;
    max-height: 80vh;
    overflow-y: auto;
}
.privacy__inner h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--fs-xl);
    margin-bottom: var(--space-4);
}
.privacy__inner p {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-4);
}
.privacy__inner a { color: var(--color-accent); }
.privacy__inner .btn { margin-top: var(--space-4); }

/* ---- Sticky CTA ---- */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 40;
    padding: var(--space-3) var(--space-5);
    background: rgba(10, 10, 11, 0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--color-border-dark);
    transform: translateY(100%);
    transition: transform var(--duration-base) var(--ease-out);
}
.sticky-cta.is-visible { transform: translateY(0); }
.sticky-cta[hidden] { display: block; }
.sticky-cta__btn { width: 100%; }

@media (min-width: 768px) {
    .sticky-cta { display: none !important; }
    body.has-sticky-cta { padding-bottom: 0; }
}

/* ---- Reveal animations ---- */
[data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}
[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

[data-reveal-child] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}
[data-reveal-child].is-visible {
    opacity: 1;
    transform: translateY(0);
}
[data-reveal-child]:nth-child(1) { transition-delay: 0ms; }
[data-reveal-child]:nth-child(2) { transition-delay: 80ms; }
[data-reveal-child]:nth-child(3) { transition-delay: 160ms; }
[data-reveal-child]:nth-child(4) { transition-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    [data-reveal],
    [data-reveal-child] { opacity: 1; transform: none; }
    .trust-bar__content { animation: none; }
    .btn--shimmer::after { display: none; }
}