/* Peak AI — public marketing styles. Standalone, no JS. */

/* SVG icons that point in a direction (CTA arrows, chevrons, breadcrumb
   carets): tag with .icon--directional and they flip horizontally in RTL.
   Code blocks inside .page bodies stay LTR even when the page is RTL. */
.icon--directional { display: inline-block; vertical-align: middle; }
[dir="rtl"] .icon--directional { transform: scaleX(-1); }
[dir="rtl"] pre, [dir="rtl"] code,
[dir="rtl"] .page pre, [dir="rtl"] .page code { direction: ltr; text-align: start; }

/* Visitor language switcher in the site header. */
.lang-switch { display: inline-flex; align-items: center; gap: 4px; padding: 4px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-elev); }
.lang-switch__btn { display: inline-block; padding: 4px 10px; border: 0; background: transparent; color: var(--text-mut); font: inherit; font-size: 12px; font-weight: 500; cursor: pointer; border-radius: 999px; text-decoration: none; line-height: 1.4; }
.lang-switch__btn:hover { color: var(--text); }
.lang-switch__btn.is-active { background: var(--accent); color: #fff; }

:root, [data-theme="dark"] {
    --bg:        #0f0f10;
    --bg-elev:   #17171a;
    --border:    #2a2a30;
    --text:      #ececf1;
    --text-mut:  #9a9aa6;
    --text-dim:  #6b6b78;
    --accent:    #7aa6ff;
    --accent-2:  #a78bff;
    --gradient:  radial-gradient(900px 540px at 50% 12%, rgba(122,166,255,.18), transparent 60%),
                 radial-gradient(600px 480px at 80% 90%, rgba(167,139,255,.10), transparent 70%);
    /* Themed RGB overlays used inside rgba() — overridden in light mode. */
    --overlay-soft: rgba(255,255,255,.06);
    --overlay-pop:  rgba(0,0,0,.25);
    --glass-bg:     rgba(23, 23, 26, .6);
    --card-shadow:  0 24px 48px rgba(0,0,0,.4);
}
[data-theme="light"] {
    --bg:        #ffffff;
    --bg-elev:   #f7f8fb;
    --border:    #e3e5ea;
    --text:      #15171c;
    --text-mut:  #5b6068;
    --text-dim:  #8a8f99;
    --accent:    #2563eb;
    --accent-2:  #7c3aed;
    --gradient:  radial-gradient(900px 540px at 50% 12%, rgba(37,99,235,.10), transparent 60%),
                 radial-gradient(600px 480px at 80% 90%, rgba(124,58,237,.07), transparent 70%);
    --overlay-soft: rgba(15,15,16,.04);
    --overlay-pop:  rgba(15,15,16,.06);
    --glass-bg:     rgba(255, 255, 255, .8);
    --card-shadow:  0 16px 40px rgba(15,15,16,.08);
}
[data-theme="light"] body { background-color: #fbfbfd; }
[data-theme="light"] .site-footer { background-color: #fbfbfd; }

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
    /* Split into longhand properties — the shorthand silently drops the
     * color when --gradient expands to multiple comma-separated layers
     * (background-color is only valid on the final layer in the shorthand). */
    background-color: var(--bg);
    background-image: var(--gradient);
    background-repeat: no-repeat;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex; flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── header ─────────────────────────────────────────────────────────── */
.site-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px max(24px, 5vw);
    max-width: 1200px; margin: 0 auto; width: 100%;
}
.brand {
    display: inline-flex; align-items: center; gap: 10px;
    color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand__mark {
    width: 32px; height: 32px;
    object-fit: contain;
    flex-shrink: 0;
}
.brand__name { font-weight: 600; letter-spacing: .01em; }

/* Theme-aware brand icon: dark (icon.svg) for light bg, light (icon-light.svg) for dark bg. */
.brand-icon { display: none; }
[data-theme="dark"]  .brand-icon--for-dark  { display: inline-block; }
[data-theme="light"] .brand-icon--for-light { display: inline-block; }
.site-nav { display: flex; align-items: center; gap: 14px; }
.nav-link {
    color: var(--text-mut);
    font-size: 14px;
    padding: 6px 10px;
}
.nav-link:hover { color: var(--text); text-decoration: none; }
.site-header__actions { display: inline-flex; align-items: center; gap: 8px; }
.nav-toggle {
    display: none;
    width: 36px; height: 36px;
    align-items: center; justify-content: center;
    flex-direction: column;
    gap: 4px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text);
    cursor: pointer;
    padding: 0;
}
.nav-toggle:hover { border-color: var(--border); }
.nav-toggle__bar {
    display: block;
    width: 18px; height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform .18s ease, opacity .18s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}
.theme-toggle {
    width: 32px; height: 32px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-mut);
    cursor: pointer;
    transition: background .12s, color .12s, border-color .12s;
}
.theme-toggle:hover { background: var(--overlay-soft); color: var(--text); }

/* ── buttons ────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    transition: transform .12s, background .12s, opacity .12s;
    border: 1px solid transparent;
    cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn--primary {
    background: var(--text);
    color: var(--bg);
}
.btn--primary:hover { opacity: .9; }
.btn--lg { padding: 14px 24px; font-size: 16px; border-radius: 12px; }
.btn--sm { padding: 8px 14px; font-size: 13px; }
.btn__arrow { transition: transform .12s; }
.btn:hover .btn__arrow { transform: translateX(2px); }

/* ── hero ───────────────────────────────────────────────────────────── */
.hero {
    flex: 1;
    display: flex; align-items: center;
    padding: 40px max(24px, 5vw) 80px;
}
.hero__inner {
    max-width: 1100px; width: 100%;
    margin: 0 auto;
    text-align: center;
}
.pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px;
    background: rgba(122, 166, 255, .08);
    border: 1px solid rgba(122, 166, 255, .25);
    border-radius: 999px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 28px;
}
.pill__dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 8px #4ade80aa;
}
.hero__headline {
    font-size: clamp(40px, 7vw, 72px);
    line-height: 1.05;
    margin: 0 0 20px;
    font-weight: 600;
    letter-spacing: -.02em;
}
.accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero__sub {
    font-size: clamp(16px, 1.6vw, 19px);
    color: var(--text-mut);
    max-width: 580px;
    margin: 0 auto 36px;
    line-height: 1.6;
}
.hero__cta {
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    margin-bottom: 64px;
}
.hero__sub-cta {
    color: var(--text-dim);
    font-size: 13px;
}

/* ── visual demo ────────────────────────────────────────────────────── */
.hero__visual {
    max-width: 560px;
    margin: 0 auto;
    text-align: start;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    box-shadow: var(--card-shadow);
}
.bubble {
    padding: 12px 16px;
    border-radius: 14px;
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.5;
    max-width: 80%;
}
.bubble--user {
    background: rgba(122, 166, 255, .12);
    color: var(--text);
    margin-inline-start: auto;          /* push to inline-end (right in LTR, left in RTL) */
    border-end-end-radius: 4px;         /* tail-side corner — flips with dir */
}
.bubble--ai {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    color: var(--text);
    border-end-start-radius: 4px;       /* tail-side corner — flips with dir */
}
.cursor {
    display: inline-block;
    width: 6px; height: 12px;
    background: var(--text);
    margin-inline-start: 3px;
    vertical-align: middle;
    animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ── footer ─────────────────────────────────────────────────────────── */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 28px max(24px, 5vw);
}
.site-footer__inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.site-footer__brand { color: var(--text-mut); font-size: 13px; }
.site-footer__nav { display: flex; gap: 20px; }
.site-footer__nav a { color: var(--text-mut); font-size: 13px; }
.site-footer__nav a:hover { color: var(--text); text-decoration: none; }
.site-footer__copy { color: var(--text-dim); font-size: 13px; }

@media (max-width: 640px) {
    .hero { padding: 24px 20px 56px; }
    .hero__visual { padding: 20px; }
    .bubble { max-width: 95%; }
}

/* ── shared inline code ─────────────────────────────────────────────── */
code {
    background: var(--overlay-soft);
    padding: 1px 6px;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .92em;
    color: var(--text);
}

/* ── section primitive (used by every marketing page) ───────────────── */
.section {
    padding: 64px max(24px, 5vw);
}
.section--alt {
    background: var(--bg-elev);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.section--cta { padding-top: 80px; padding-bottom: 96px; }
.section__inner {
    max-width: 1100px;
    margin: 0 auto;
}
.section__inner--narrow { max-width: 720px; text-align: center; }
.section__inner--split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.section__heading {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    letter-spacing: -.015em;
    margin: 0 0 12px;
    text-align: center;
}
.section__heading--left { text-align: start; }
.section__lead {
    color: var(--text-mut);
    font-size: 17px;
    text-align: center;
    max-width: 620px;
    margin: 0 auto 40px;
    line-height: 1.6;
}
.section__lead--left { text-align: start; margin-inline: 0; }
.section__footer { text-align: center; margin-top: 24px; }
.nav-link--active { color: var(--text); }

/* ── feature grid (home: what it does) ──────────────────────────────── */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
.feature-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 22px 20px;
}
.feature-card__icon {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(122,166,255,.18), rgba(167,139,255,.18));
    color: var(--accent);
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: 12px;
}
.feature-card__title { font-weight: 600; margin-bottom: 6px; font-size: 15px; }
.feature-card__body  { font-size: 14px; color: var(--text-mut); line-height: 1.6; margin: 0; }

/* ── model cards ────────────────────────────────────────────────────── */
.model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.model-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 22px 22px;
}
.model-card__head {
    display: flex; align-items: baseline; justify-content: space-between;
    margin-bottom: 6px; gap: 8px;
}
.model-card__name { font-weight: 600; font-size: 16px; }
.model-card__code {
    font-size: 11px; color: var(--text-dim);
    background: var(--overlay-pop);
    padding: 2px 8px; border-radius: 999px;
}
.model-card__blurb { color: var(--text-mut); font-size: 14px; margin: 0 0 16px; line-height: 1.55; }
.model-card__stats {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
    border-top: 1px solid var(--border); padding-top: 12px; margin: 0;
}
.model-card__stats dt { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 2px; }
.model-card__stats dd { margin: 0; font-size: 13px; font-variant-numeric: tabular-nums; }

/* ── developer section ──────────────────────────────────────────────── */
.dev-snippet {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px 20px;
    overflow-x: auto;
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
}
.dev-snippet code { background: transparent; padding: 0; font-size: 13px; }
.dev-ctas { display: flex; align-items: center; gap: 16px; margin-top: 18px; }

/* ── trust band ─────────────────────────────────────────────────────── */
.trust-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.trust-card {
    padding: 22px 22px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 14px;
}
.trust-card__title { font-weight: 600; margin-bottom: 8px; font-size: 15px; }
.trust-card p { font-size: 14px; color: var(--text-mut); margin: 0; line-height: 1.6; }

/* ── content pages (pricing / security / privacy / terms / contact) ─── */
.page {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px max(24px, 5vw) 80px;
}
.page--wide { max-width: 1000px; }
.page__eyebrow {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: .08em;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}
.page__title {
    font-size: clamp(32px, 5vw, 48px);
    margin: 0 0 16px;
    font-weight: 600;
    letter-spacing: -.015em;
}
.page__lead {
    color: var(--text-mut);
    font-size: 18px;
    line-height: 1.6;
    margin: 0 0 40px;
}
.page__meta {
    font-size: 13px;
    color: var(--text-dim);
    margin-top: -24px;
    margin-bottom: 32px;
}
.page h2 {
    font-size: 22px;
    margin: 40px 0 12px;
    font-weight: 600;
    scroll-margin-top: 80px;
}
.page h3 {
    font-size: 16px;
    margin: 24px 0 8px;
    font-weight: 600;
}
.page p, .page li { color: var(--text-mut); line-height: 1.7; font-size: 15px; }
.page ul, .page ol { padding-inline-start: 22px; }
.page li { margin: 4px 0; }
.page strong { color: var(--text); }

/* ── pricing table (also used inside content pages) ─────────────────── */
.pricing-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}
.pricing-table th, .pricing-table td {
    text-align: start;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
.pricing-table th {
    font-weight: 500;
    color: var(--text-dim);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: .04em;
}
.pricing-table td { color: var(--text); }
.pricing-table tbody tr:last-child td { border-bottom: 0; }
.pricing-table .num { text-align: end; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ── plan cards (chat tiers) ────────────────────────────────────────── */
.plan-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 20px 0; }
.plan-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
}
.plan-card--featured { border-color: rgba(122,166,255,.5); }
.plan-card__name  { font-weight: 600; font-size: 14px; color: var(--accent); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; }
.plan-card__price { font-size: 28px; font-weight: 600; margin-bottom: 14px; }
.plan-card__price .per { font-size: 13px; color: var(--text-mut); font-weight: 400; }
.plan-card__list { list-style: none; padding: 0; margin: 0; }
.plan-card__list li { padding: 6px 0; padding-inline-start: 20px; position: relative; color: var(--text-mut); font-size: 14px; }
.plan-card__list li::before { content: "✓"; position: absolute; inset-inline-start: 0; color: var(--accent); }

/* ── notice / callout ───────────────────────────────────────────────── */
.notice {
    background: rgba(122,166,255,.06);
    border: 1px solid rgba(122,166,255,.2);
    border-radius: 10px;
    padding: 14px 18px;
    color: var(--text-mut);
    font-size: 14px;
    margin: 20px 0;
}
.notice--warn {
    background: rgba(234,179,8,.08);
    border-color: rgba(234,179,8,.28);
}
.notice strong { color: var(--text); }

/* ── contact form ───────────────────────────────────────────────────── */
.form-grid { display: grid; gap: 14px; margin: 24px 0; }
.form-grid label {
    display: block; font-size: 13px; color: var(--text-mut);
    margin-bottom: 6px; font-weight: 500;
}
.form-grid input,
.form-grid select,
.form-grid textarea {
    width: 100%;
    background: var(--bg-elev);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 14px;
    font: inherit;
}
.form-grid textarea { min-height: 140px; resize: vertical; }
.form-grid input:focus,
.form-grid select:focus,
.form-grid textarea:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(122,166,255,.18);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-actions { display: flex; align-items: center; gap: 14px; margin-top: 4px; }
.form-status { font-size: 13px; color: var(--text-mut); }
.form-status--ok    { color: #4ade80; }
.form-status--err   { color: #ef6868; }

/* ── footer (rebuilt as multi-column) ───────────────────────────────── */
.site-footer__inner--cols {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 32px;
    text-align: start;
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto;
}
.site-footer__col {
    display: flex; flex-direction: column; gap: 6px;
}
.site-footer__heading {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-dim);
    margin-bottom: 4px;
}
.site-footer__col a {
    color: var(--text-mut);
    font-size: 13px;
}
.site-footer__col a:hover { color: var(--text); text-decoration: none; }
.site-footer__brand { color: var(--text); font-weight: 600; font-size: 14px; }
.site-footer__tag { color: var(--text-mut); font-size: 13px; line-height: 1.55; max-width: 280px; }
.site-footer__bottom {
    max-width: 1200px;
    margin: 28px auto 0;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.site-footer__copy { color: var(--text-dim); font-size: 13px; }

/* ── responsive ─────────────────────────────────────────────────────── */
@media (max-width: 980px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .model-grid   { grid-template-columns: 1fr; }
    .trust-grid   { grid-template-columns: 1fr; }
    .section__inner--split { grid-template-columns: 1fr; gap: 24px; }
    .site-footer__inner--cols { grid-template-columns: 1fr 1fr; }
    .plan-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .section { padding: 48px 20px; }
    .feature-grid { grid-template-columns: 1fr; }
    .site-footer__inner--cols { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .site-header { padding: 14px 20px; position: relative; }
    .nav-toggle { display: inline-flex; }
    .site-nav {
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px 20px 16px;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 24px rgba(0, 0, 0, .12);
        max-height: calc(100vh - 64px);
        overflow-y: auto;
        z-index: 50;
        display: none;
    }
    .site-nav--open { display: flex; }
    .site-nav .nav-link {
        padding: 12px 4px;
        font-size: 15px;
        border-bottom: 1px solid var(--border);
    }
    .site-nav .nav-link:last-of-type { border-bottom: none; }
    .site-nav__cta { margin-top: 12px; text-align: center; }
    body.nav-open { overflow: hidden; }
}