/* Zeta Core — marketing site, light theme (shared by / and /taskflo/) */
:root {
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --card: #ffffff;
    --border: rgba(15, 23, 42, 0.08);
    --border-strong: rgba(15, 23, 42, 0.16);
    --green: #10b981;
    --green-dark: #047857;
    --blue: #2563eb;
    --cyan: #0891b2;
    --violet: #7c3aed;
    --text: #0f172a;
    --muted: #475569;
    --dim: #94a3b8;
    --radius: 16px;
    --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -12px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 2px 4px rgba(15, 23, 42, 0.04), 0 24px 60px -20px rgba(15, 23, 42, 0.22);
    --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
}

/* soft colour wash behind the top of every page */
body::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 820px;
    background:
        radial-gradient(620px 380px at 18% 0%, rgba(16, 185, 129, 0.14), transparent 70%),
        radial-gradient(720px 420px at 85% 6%, rgba(37, 99, 235, 0.12), transparent 70%),
        linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);
    pointer-events: none;
    z-index: -1;
}

a { color: inherit; text-decoration: none; }

.ico {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}

/* ---------- Header ---------- */
header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

.logo-mark {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: #0b0f19;
    display: grid;
    place-items: center;
}

.logo-mark::after {
    content: "";
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.8);
}

.site-nav {
    display: flex;
    gap: 2rem;
    font-size: 0.92rem;
    font-weight: 500;
}

.site-nav a { color: var(--muted); transition: color 0.15s; white-space: nowrap; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }

@media (max-width: 760px) {
    .site-nav { order: 3; width: 100%; flex-wrap: wrap; gap: 0.35rem 1.25rem; font-size: 0.88rem; }
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.8rem 1.4rem;
    transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; border-radius: 8px; }

.btn-primary {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 0 6px 18px -6px rgba(5, 150, 105, 0.55);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 26px -6px rgba(5, 150, 105, 0.6); }

.btn-ghost {
    border: 1px solid var(--border-strong);
    color: var(--text);
    background: #fff;
}

.btn-ghost:hover { border-color: var(--text); }

.btn-dark { background: var(--text); color: #fff; }
.btn-dark:hover { background: #1e293b; }

/* ---------- Layout ---------- */
.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 1.5rem);
}

.section { padding: 5.5rem 0 0; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 2.75rem; }

.eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green-dark);
    margin-bottom: 0.8rem;
}

.section-head h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    line-height: 1.15;
    letter-spacing: -0.025em;
    font-weight: 800;
    margin-bottom: 0.9rem;
}

.section-head p { color: var(--muted); font-size: 1.05rem; }

.gradient-text {
    background: linear-gradient(90deg, #059669, #0891b2 50%, #2563eb);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.grid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }

@media (min-width: 720px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1000px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 4.5rem 0 0; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.08);
    color: var(--green-dark);
    border-radius: 999px;
    padding: 0.35rem 0.9rem;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.badge::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
}

.hero h1 {
    font-size: clamp(2.3rem, 6vw, 4rem);
    line-height: 1.06;
    letter-spacing: -0.04em;
    font-weight: 800;
    max-width: 900px;
    margin: 0 auto 1.4rem;
}

.hero p.lead {
    font-size: clamp(1.02rem, 2vw, 1.2rem);
    color: var(--muted);
    max-width: 680px;
    margin: 0 auto 2.2rem;
}

.hero-actions { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }

.hero-note { margin-top: 1.1rem; font-size: 0.85rem; color: var(--dim); }

/* ---------- Product mockup ---------- */
.mockup {
    position: relative;
    max-width: 980px;
    margin: 4rem auto 0;
    border-radius: 18px;
    border: 1px solid var(--border-strong);
    background: #fff;
    box-shadow: var(--shadow-lg), 0 40px 100px -40px rgba(16, 185, 129, 0.35);
    text-align: left;
    overflow: hidden;
}

.mock-bar {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-soft);
    font-size: 0.75rem;
    color: var(--dim);
}

.mock-bar i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.mock-bar i:nth-child(1) { background: #f87171; }
.mock-bar i:nth-child(2) { background: #fbbf24; }
.mock-bar i:nth-child(3) { background: #34d399; }
.mock-bar span { margin-left: 0.75rem; font-family: var(--mono); }

.mock-body { display: grid; grid-template-columns: 170px 1fr; min-height: 340px; }

.mock-side { border-right: 1px solid var(--border); padding: 1rem 0.75rem; display: grid; gap: 0.3rem; align-content: start; background: #fcfdfe; }

.mock-side div { font-size: 0.78rem; color: var(--muted); padding: 0.4rem 0.6rem; border-radius: 6px; }
.mock-side div.on { background: rgba(37, 99, 235, 0.08); color: var(--blue); font-weight: 600; }

.mock-main { padding: 1.1rem; position: relative; background: #f8fafc; }

.mock-title { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.85rem; }
.mock-title small { color: var(--dim); font-weight: 500; margin-left: 0.5rem; }

.mock-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }

.mock-col h4 {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.mock-col h4::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--c, #94a3b8); }

.mock-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.6rem 0.65rem;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.mock-card b { display: block; font-weight: 600; margin-bottom: 0.35rem; }
.mock-card em { font-style: normal; font-size: 0.68rem; color: var(--dim); }
.mock-card em.late { color: #dc2626; font-weight: 600; }

.mock-chat {
    position: absolute;
    right: 1.1rem;
    bottom: 1.1rem;
    width: min(300px, 60%);
    background: #fff;
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: 14px;
    padding: 0.85rem;
    box-shadow: var(--shadow-lg);
    font-size: 0.76rem;
}

.mock-chat .who { font-size: 0.68rem; color: var(--green-dark); font-weight: 700; margin-bottom: 0.4rem; }
.mock-chat .q { background: var(--blue); color: #fff; border-radius: 10px 10px 2px 10px; padding: 0.45rem 0.6rem; margin: 0 0 0.5rem auto; width: fit-content; max-width: 90%; }
.mock-chat .a { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px 10px 10px 2px; padding: 0.5rem 0.6rem; color: var(--muted); }
.mock-chat .a b { color: var(--text); }

@media (max-width: 720px) {
    .mock-body { grid-template-columns: 1fr; }
    .mock-side { display: none; }
    .mock-cols { grid-template-columns: repeat(2, 1fr); }
    .mock-cols .mock-col:nth-child(3) { display: none; }
    .mock-chat { position: static; width: auto; margin-top: 0.75rem; }
}

/* ---------- Cards ---------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.6rem;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}

.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--border-strong); }

.card h3 { font-size: 1.05rem; font-weight: 700; margin: 1rem 0 0.45rem; letter-spacing: -0.01em; }

.card p { color: var(--muted); font-size: 0.93rem; }

.ico-wrap {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    color: var(--c, #059669);
    background: color-mix(in srgb, var(--c, #059669) 10%, #fff);
    border: 1px solid color-mix(in srgb, var(--c, #059669) 22%, #fff);
}

.c-green { --c: #059669; }
.c-blue { --c: #2563eb; }
.c-cyan { --c: #0891b2; }
.c-violet { --c: #7c3aed; }
.c-amber { --c: #d97706; }
.c-rose { --c: #e11d48; }

/* ---------- Stats ---------- */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-top: 4rem;
    box-shadow: var(--shadow);
}

@media (min-width: 800px) { .stats { grid-template-columns: repeat(4, 1fr); } }

.stat { background: #fff; padding: 1.6rem 1rem; text-align: center; }

.stat strong {
    display: block;
    font-size: 2.1rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
}

.stat strong em { font-style: normal; color: var(--green); }

.stat span { font-size: 0.85rem; color: var(--muted); }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center; }

.chip {
    font-size: 0.88rem;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 999px;
    padding: 0.45rem 1rem;
    color: var(--muted);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.chip b { color: var(--text); font-weight: 600; }

/* ---------- Check list ---------- */
.checks { list-style: none; display: grid; gap: 0.8rem; margin-top: 1rem; }

.checks li { position: relative; padding-left: 1.8rem; color: var(--muted); font-size: 0.94rem; }

.checks li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.3rem;
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.14) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23059669' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 70% no-repeat;
}

.checks li strong { color: var(--text); font-weight: 600; }

/* ---------- App catalogue ---------- */
.apps { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }

@media (min-width: 720px) { .apps { grid-template-columns: repeat(3, 1fr); } .app-card.live { grid-column: 1 / -1; } }

.app-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    box-shadow: var(--shadow);
}

.app-card.live {
    background:
        radial-gradient(520px 240px at 100% 0%, rgba(37, 99, 235, 0.08), transparent 70%),
        radial-gradient(420px 220px at 0% 100%, rgba(16, 185, 129, 0.08), transparent 70%),
        #fff;
    border-color: rgba(37, 99, 235, 0.25);
    box-shadow: var(--shadow-lg);
}

@media (min-width: 720px) {
    .app-card.live { flex-direction: row; align-items: center; gap: 2rem; padding: 2.25rem; }
    .app-card.live .app-info { flex: 1; }
}

.app-card.soon { border-style: dashed; border-color: var(--border-strong); box-shadow: none; background: var(--bg-soft); }

.app-card h3 { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; }
.app-card.live h3 { font-size: 1.9rem; }
.app-card h3 span { color: var(--blue); }

.app-card p { color: var(--muted); font-size: 0.94rem; }

.app-card .chips { justify-content: flex-start; margin-top: 0.25rem; }
.app-card .chip { font-size: 0.78rem; padding: 0.3rem 0.75rem; }

.app-cta { display: flex; flex-direction: column; gap: 0.6rem; }

.pill {
    align-self: flex-start;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    letter-spacing: 0.02em;
}

.pill-live { color: var(--green-dark); background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.3); }
.pill-soon { color: var(--muted); background: #fff; border: 1px solid var(--border-strong); }

/* ---------- AI options ---------- */
.ai-option {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.ai-option.featured {
    border: 2px solid var(--green);
    box-shadow: var(--shadow-lg), 0 20px 50px -25px rgba(16, 185, 129, 0.5);
    position: relative;
}

.ai-option .tag {
    position: absolute;
    top: -0.75rem;
    left: 1.75rem;
    background: var(--green);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
}

.ai-option .label { font-size: 0.75rem; font-weight: 700; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; margin: 1rem 0 0.3rem; }
.ai-option h3 { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
.ai-option > p { color: var(--muted); font-size: 0.94rem; }

.ai-flow {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.88rem;
    color: var(--muted);
}

.ai-flow .node {
    border: 1px solid var(--border-strong);
    background: #fff;
    border-radius: 10px;
    padding: 0.55rem 0.95rem;
    color: var(--text);
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.ai-flow .node.green { border-color: rgba(16, 185, 129, 0.5); color: var(--green-dark); }
.ai-flow .node.blue { border-color: rgba(37, 99, 235, 0.4); color: var(--blue); }
.ai-flow .arrow { color: var(--dim); }

/* ---------- Misc ---------- */
.note { text-align: center; font-size: 0.92rem; color: var(--muted); margin-top: 1.5rem; }
.note a { color: var(--green-dark); font-weight: 600; }

.tech-specs {
    margin-top: 1.5rem;
    border-radius: 12px;
    background: #0f172a;
    padding: 1rem 1.25rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: #6ee7b7;
    overflow-x: auto;
}

.tech-specs span { color: #94a3b8; }

.back-link { display: inline-block; margin-top: 2rem; font-size: 0.88rem; color: var(--muted); }
.back-link:hover { color: var(--text); }

/* ---------- CTA ---------- */
.cta {
    margin: 6rem 0 0;
    border-radius: 24px;
    background:
        radial-gradient(600px 280px at 15% 0%, rgba(16, 185, 129, 0.35), transparent 70%),
        radial-gradient(600px 280px at 90% 100%, rgba(37, 99, 235, 0.35), transparent 70%),
        #0b1220;
    color: #fff;
    padding: clamp(2.5rem, 6vw, 4rem) 1.5rem;
    text-align: center;
}

.cta h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.9rem; }
.cta p { color: #cbd5e1; max-width: 560px; margin: 0 auto 1.8rem; }

/* ---------- Footer ---------- */
footer {
    margin-top: 5rem;
    border-top: 1px solid var(--border);
    padding: 2rem clamp(1rem, 4vw, 2.5rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--muted);
}

footer nav { display: flex; gap: 1.5rem; }
footer nav a:hover { color: var(--text); }

/* ---------- Classified app teaser (ZetaDossier) ---------- */
@media (min-width: 720px) { .app-card.classified { grid-column: 1 / -1; } }

.app-card.classified {
    background:
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 4px),
        radial-gradient(520px 260px at 100% 0%, rgba(225, 29, 72, 0.18), transparent 70%),
        radial-gradient(480px 240px at 0% 100%, rgba(16, 185, 129, 0.12), transparent 70%),
        #0b1220;
    border: 1px solid #1e293b;
    color: #e2e8f0;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

@media (min-width: 720px) {
    .app-card.classified { flex-direction: row; align-items: center; gap: 2rem; padding: 2.25rem; }
    .app-card.classified .classified-info { flex: 1; }
}

.classified-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stamp {
    color: #fb7185;
    border: 1.5px solid #fb7185;
    border-radius: 4px;
    padding: 0.15rem 0.55rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    transform: rotate(-3deg);
    display: inline-block;
}

.app-card.classified h3 { font-size: 1.9rem; color: #fff; margin-top: 0.85rem; }
.app-card.classified h3 span { color: #fb7185; }

.classified-lead { color: #f1f5f9 !important; font-size: 1.05rem !important; font-weight: 600; margin: 0.35rem 0 0.6rem; }

.classified-desc { color: #94a3b8 !important; max-width: 640px; }

/* Taskflo+ page: tagline above the hero heading */
.hero-tagline {
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--blue);
    margin: -0.5rem 0 1rem;
}

.hints {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    margin-top: 0.9rem;
    font-size: 0.88rem;
    color: #cbd5e1;
}

.hints b { font-family: var(--mono); color: #34d399; font-weight: 500; margin-right: 0.35rem; }

.btn-light { background: #fff; color: #0f172a; }
.btn-light:hover { background: #e2e8f0; }

.classified-foot { font-family: var(--mono); font-size: 0.7rem; color: #64748b; text-align: center; letter-spacing: 0.05em; }

.classified-tagline {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #94a3b8;
    margin: 0.15rem 0 0.9rem;
}

/* Taskflo+ card tagline (mirrors the ZetaDossier one, light version) */
.app-tagline {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--blue);
    margin: 0.15rem 0 0.9rem;
}

.app-card p.app-lead { color: var(--text); font-size: 1.05rem; font-weight: 600; margin: 0 0 0.4rem; }