/* ==========================================================================
   Task Tracker — Marketing Site Design System
   Ink navy + warm paper + muted brass. Independent from assets/style.css
   (the internal app's utilitarian styling) by design — this is the public
   front, the app is the workshop.
   ========================================================================== */

:root {
    --mk-bg: #F5F6F8;
    --mk-panel: #FFFFFF;
    --mk-ink: #141A24;
    --mk-ink-muted: #5B6472;
    --mk-border: #E2E5EA;
    --mk-brass: #A8792E;
    --mk-brass-soft: #F1E3C8;
    --mk-navy-panel: #141A24;
    --mk-navy-panel-2: #1B2330;
    --mk-code-text: #D7DEE8;
    --mk-code-muted: #7C8899;
    --mk-shadow: 0 1px 2px rgba(20, 26, 36, 0.04), 0 8px 24px rgba(20, 26, 36, 0.06);
}

[data-theme="dark"] {
    --mk-bg: #0E131A;
    --mk-panel: #171E28;
    --mk-ink: #EDEFF3;
    --mk-ink-muted: #8B94A3;
    --mk-border: #2A3240;
    --mk-brass: #D4A64C;
    --mk-brass-soft: #2A2214;
    --mk-navy-panel: #0A0E14;
    --mk-navy-panel-2: #10151D;
    --mk-code-text: #C9D1DC;
    --mk-code-muted: #62707F;
    --mk-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.mk {
    margin: 0;
    background: var(--mk-bg);
    color: var(--mk-ink);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.55;
    transition: background-color 0.15s ease, color 0.15s ease;
    -webkit-font-smoothing: antialiased;
}

.mk-wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.mk-wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, .mk-display {
    font-family: 'Space Grotesk', -apple-system, sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--mk-ink);
    margin: 0;
}

a { color: inherit; }
.mk a.mk-link { color: var(--mk-brass); text-decoration: none; font-weight: 600; }
.mk a.mk-link:hover { text-decoration: underline; }

/* ---- Nav ---- */
.mk-nav {
    border-bottom: 1px solid var(--mk-border);
    position: sticky;
    top: 0;
    background: var(--mk-bg);
    background: color-mix(in srgb, var(--mk-bg) 88%, transparent);
    backdrop-filter: blur(10px);
    z-index: 20;
}
.mk-nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.mk-logo {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    font-size: 1.02rem;
    letter-spacing: -0.01em;
    text-decoration: none;
    color: var(--mk-ink);
    display: flex;
    align-items: center;
    gap: 8px;
}
.mk-logo-mark {
    width: 9px; height: 9px; border-radius: 2px;
    background: var(--mk-brass);
    display: inline-block;
    transform: rotate(45deg);
}
.mk-nav-links { display: flex; align-items: center; gap: 28px; }
.mk-nav-links a { text-decoration: none; color: var(--mk-ink-muted); font-size: 0.92rem; font-weight: 500; }
.mk-nav-links a:hover { color: var(--mk-ink); }
.mk-nav-actions { display: flex; align-items: center; gap: 10px; }

/* ---- Buttons ---- */
.mk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.92rem;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.1s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.mk-btn:hover { text-decoration: none; }
.mk-btn-primary { background: var(--mk-ink); color: var(--mk-bg); }
[data-theme="dark"] .mk-btn-primary { background: var(--mk-brass); color: #14110A; }
.mk-btn-primary:hover { transform: translateY(-1px); }
.mk-btn-ghost { background: transparent; color: var(--mk-ink); border-color: var(--mk-border); }
.mk-btn-ghost:hover { border-color: var(--mk-ink-muted); }
.mk-btn-sm { padding: 7px 14px; font-size: 0.82rem; }
.mk-btn-block { width: 100%; }

/* ---- Theme toggle (reused pattern from the app) ---- */
.mk-theme-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 6px;
    border: 1px solid var(--mk-border); background: var(--mk-panel);
    color: var(--mk-ink-muted); cursor: pointer; padding: 0;
}
.mk-theme-toggle:hover { color: var(--mk-ink); }
.mk-theme-toggle svg { width: 16px; height: 16px; }
.mk-theme-toggle .icon-sun { display: none; }
.mk-theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .mk-theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .mk-theme-toggle .icon-moon { display: none; }

/* ---- Hero ---- */
.mk-hero { padding: 88px 0 64px; }
.mk-hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.mk-eyebrow {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    color: var(--mk-brass);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-bottom: 16px;
    display: block;
}
.mk-hero h1 { font-size: 3.2rem; line-height: 1.06; margin-bottom: 20px; }
.mk-hero p.mk-lede { font-size: 1.15rem; color: var(--mk-ink-muted); max-width: 46ch; margin-bottom: 32px; }
.mk-hero-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.mk-hero-note { font-size: 0.85rem; color: var(--mk-ink-muted); margin-top: 14px; }

/* ---- Ledger panel: the signature element ---- */
.mk-ledger {
    background: var(--mk-navy-panel);
    border-radius: 10px;
    box-shadow: var(--mk-shadow);
    overflow: hidden;
    border: 1px solid var(--mk-navy-panel-2);
}
.mk-ledger-bar {
    display: flex; align-items: center; gap: 7px;
    padding: 12px 16px;
    background: var(--mk-navy-panel-2);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mk-ledger-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.16); }
.mk-ledger-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.72rem;
    color: var(--mk-code-muted);
    margin-left: 6px;
    letter-spacing: 0.02em;
}
.mk-ledger-body { padding: 18px 18px 22px; font-family: 'IBM Plex Mono', monospace; font-size: 0.82rem; }
.mk-ledger-row { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.055); }
.mk-ledger-row:last-child { border-bottom: none; }
.mk-ledger-time { color: var(--mk-code-muted); }
.mk-ledger-event { color: var(--mk-code-text); font-weight: 600; margin-left: 10px; }
.mk-ledger-change { color: var(--mk-brass); margin-left: 10px; }
.mk-ledger-who { color: var(--mk-code-muted); float: right; }
.mk-ledger-note { color: var(--mk-code-muted); display: block; margin-top: 4px; padding-left: 68px; font-style: italic; }

/* ---- Sections ---- */
.mk-section { padding: 72px 0; }
.mk-section-alt { background: var(--mk-panel); border-top: 1px solid var(--mk-border); border-bottom: 1px solid var(--mk-border); }
.mk-section-head { max-width: 620px; margin-bottom: 48px; }
.mk-section-head h2 { font-size: 2.1rem; margin-bottom: 14px; line-height: 1.15; }
.mk-section-head p { color: var(--mk-ink-muted); font-size: 1.02rem; }
.mk-kicker {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.76rem;
    color: var(--mk-brass);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    display: block;
    margin-bottom: 12px;
}

/* ---- Value prop grid ---- */
.mk-value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.mk-value-card { }
.mk-value-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.mk-value-card p { color: var(--mk-ink-muted); font-size: 0.94rem; margin: 0 0 16px; }
.mk-value-snippet {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.74rem;
    background: var(--mk-navy-panel);
    color: var(--mk-code-text);
    border-radius: 6px;
    padding: 10px 12px;
    line-height: 1.6;
}
.mk-value-snippet .brass { color: var(--mk-brass); }
.mk-value-snippet .dim { color: var(--mk-code-muted); }

/* ---- How it works (genuine sequence — numbering earned) ---- */
.mk-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; counter-reset: mk-step; }
.mk-step { position: relative; padding-top: 8px; }
.mk-step::before {
    counter-increment: mk-step;
    content: "0" counter(mk-step);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    color: var(--mk-brass);
    display: block;
    margin-bottom: 14px;
    letter-spacing: 0.05em;
}
.mk-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.mk-step p { color: var(--mk-ink-muted); font-size: 0.92rem; margin: 0; }

/* ---- Feature list (checkmark rows) ---- */
.mk-feature-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; }
.mk-feature-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.94rem; color: var(--mk-ink); }
.mk-feature-list svg { flex: 0 0 auto; margin-top: 3px; color: var(--mk-brass); }

/* ---- Pricing ---- */
.mk-pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.mk-price-card {
    background: var(--mk-panel);
    border: 1px solid var(--mk-border);
    border-radius: 12px;
    padding: 28px;
    display: flex;
    flex-direction: column;
}
.mk-price-card.featured {
    border-color: var(--mk-brass);
    box-shadow: var(--mk-shadow);
    position: relative;
}
.mk-price-badge {
    position: absolute; top: -12px; left: 28px;
    background: var(--mk-brass); color: var(--mk-navy-panel);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em;
    padding: 4px 10px; border-radius: 100px; font-weight: 700;
}
.mk-price-name { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.mk-price-desc { color: var(--mk-ink-muted); font-size: 0.88rem; margin-bottom: 20px; min-height: 40px; }
.mk-price-amount { font-family: 'Space Grotesk', sans-serif; font-size: 2.4rem; font-weight: 600; margin-bottom: 2px; }
.mk-price-amount .unit { font-size: 0.95rem; color: var(--mk-ink-muted); font-weight: 500; font-family: 'Inter', sans-serif; }
.mk-price-sub { font-size: 0.8rem; color: var(--mk-ink-muted); margin-bottom: 24px; }
.mk-price-features { list-style: none; padding: 0; margin: 0 0 28px; flex: 1; }
.mk-price-features li { display: flex; gap: 9px; align-items: flex-start; font-size: 0.88rem; padding: 7px 0; border-top: 1px solid var(--mk-border); }
.mk-price-features li:first-child { border-top: none; }
.mk-price-features svg { flex: 0 0 auto; margin-top: 2px; color: var(--mk-brass); }

.mk-compare-note {
    margin-top: 40px;
    padding: 18px 20px;
    border-radius: 8px;
    background: var(--mk-brass-soft);
    font-size: 0.88rem;
    color: var(--mk-ink);
    border: 1px solid var(--mk-border);
}

/* ---- CTA band ---- */
.mk-cta-band {
    background: var(--mk-navy-panel);
    color: var(--mk-code-text);
    padding: 64px 0;
    text-align: center;
}
.mk-cta-band h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
.mk-cta-band p { color: var(--mk-code-muted); margin-bottom: 28px; font-size: 1rem; }

/* ---- Footer ---- */
.mk-footer { border-top: 1px solid var(--mk-border); padding: 40px 0; }
.mk-footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.mk-footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.mk-footer-links a { text-decoration: none; color: var(--mk-ink-muted); font-size: 0.86rem; }
.mk-footer-links a:hover { color: var(--mk-ink); }
.mk-footer-copy { font-size: 0.82rem; color: var(--mk-ink-muted); }

/* ---- Simple content pages (About / Terms / Privacy) ---- */
.mk-page-header { padding: 56px 0 8px; }
.mk-page-header h1 { font-size: 2.4rem; margin-bottom: 8px; }
.mk-page-header .mk-updated { font-size: 0.85rem; color: var(--mk-ink-muted); font-family: 'IBM Plex Mono', monospace; }
.mk-prose { padding: 32px 0 72px; font-size: 1rem; }
.mk-prose h2 { font-size: 1.3rem; margin: 36px 0 12px; }
.mk-prose h2:first-child { margin-top: 0; }
.mk-prose p { color: var(--mk-ink); margin: 0 0 16px; }
.mk-prose p.muted { color: var(--mk-ink-muted); }
.mk-prose ul { margin: 0 0 16px; padding-left: 22px; color: var(--mk-ink); }
.mk-prose li { margin-bottom: 6px; }
.mk-notice {
    display: flex; gap: 12px; align-items: flex-start;
    background: var(--mk-brass-soft);
    border: 1px solid var(--mk-border);
    border-radius: 8px;
    padding: 16px 18px;
    font-size: 0.88rem;
    margin-bottom: 8px;
}
.mk-notice svg { flex: 0 0 auto; margin-top: 2px; color: var(--mk-brass); }

.mk-principles { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 16px; }
.mk-principles li {
    display: flex; gap: 16px;
    padding: 18px 0;
    border-top: 1px solid var(--mk-border);
}
.mk-principles li:first-child { border-top: none; }
.mk-principle-mark { font-family: 'IBM Plex Mono', monospace; color: var(--mk-brass); font-size: 0.85rem; flex: 0 0 32px; }
.mk-principles strong { display: block; margin-bottom: 4px; }
.mk-principles span { color: var(--mk-ink-muted); font-size: 0.92rem; }

/* ---- Responsive ---- */
@media (max-width: 860px) {
    .mk-hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .mk-hero { padding: 48px 0 40px; }
    .mk-hero h1 { font-size: 2.3rem; }
    .mk-value-grid, .mk-steps { grid-template-columns: 1fr; gap: 32px; }
    .mk-pricing-grid { grid-template-columns: 1fr; }
    .mk-feature-list { grid-template-columns: 1fr; }
    .mk-nav-links { display: none; }
    .mk-section { padding: 48px 0; }
    .mk-section-head h2 { font-size: 1.6rem; }
}