/* dCal landing page — minimalist, modern, monochrome-and-accent. */

:root {
    --accent: #2563eb;
    --accent-soft: rgba(37, 99, 235, 0.10);
    --text: #111827;
    --text-muted: #6b7280;
    --bg: #ffffff;
    --bg-soft: #f9fafb;
    --bg-dark: #0f172a;
    --bg-dark-soft: #1e293b;
    --border: #e5e7eb;
    --max-width: 1100px;
    --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue",
                 "Hiragino Sans", "Yu Gothic", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

code, pre {
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.9em;
}
code {
    background: var(--bg-soft);
    padding: 1px 6px;
    border-radius: 4px;
}
pre {
    background: var(--bg-dark);
    color: #cbd5e1;
    padding: 18px;
    border-radius: 8px;
    overflow-x: auto;
    line-height: 1.5;
}
pre code { background: transparent; padding: 0; color: inherit; }

/* ===== Hero ===== */

.hero {
    background: linear-gradient(135deg, #eff6ff 0%, var(--bg) 100%);
    padding: 0 0 96px;
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    align-items: center;
    padding: 24px 0;
}
.nav .logo {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.nav .logo-mark {
    /* The source PNG already includes the squircle shape and a soft
       baked-in drop shadow with proper alpha, so we deliberately do NOT
       add a CSS box-shadow or border-radius here — both would paint at
       the image's bounding rect, which is slightly larger than the
       visible squircle, and produce a faint extra outline. */
    width: 44px;
    height: 44px;
    display: block;
}

.nav ul {
    margin-left: auto;
    list-style: none;
    padding: 0;
    display: flex;
    gap: 28px;
}
.nav a {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
}
.nav a:hover { color: var(--text); text-decoration: none; }
.nav li.lang a {
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text);
}
.nav li.lang a:hover {
    background: var(--bg-soft);
}

.hero h1 {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin: 72px 0 24px;
}
.hero h1 .accent { color: var(--accent); }
.hero .lead {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 0 36px;
}

.cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 14px 24px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid transparent;
    transition: transform .1s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.25);
}
.btn.secondary {
    background: white;
    color: var(--text);
    border-color: var(--border);
}
.price-note {
    margin-top: 18px;
    color: var(--text-muted);
    font-size: 13px;
}

/* ===== Section primitives ===== */

.section { padding: 96px 0; }
.section.dark {
    background: var(--bg-soft);
}
.section h2 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 32px;
}
.section h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 12px;
}

/* ===== Preview / screenshots section ===== */

.preview-section { padding: 80px 0; }

.section-lead {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 720px;
    margin: -16px 0 40px;
}

.phone-row, .phone-gallery {
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
    align-items: flex-start;
}

/* Soft "device" frame around each phone screenshot. iPhone 17 Pro
   screenshots are 1290×2796 — we display them at ~240px wide and let
   the browser scale, then wrap in a rounded card with subtle shadow.
   We deliberately don't draw a true bezel: the iOS dynamic-island plus
   home-indicator are already in the screenshot itself, so a clean
   container reads as more modern than a marketing-style fake bezel. */
.phone-frame {
    width: 240px;
    background: var(--bg);
    padding: 6px;
    border-radius: 32px;
    box-shadow:
        0 30px 60px -20px rgba(15, 23, 42, 0.25),
        0 0 0 1px var(--border);
    margin: 0;
}
.phone-frame img {
    width: 100%;
    display: block;
    border-radius: 26px;
}
.phone-frame figcaption {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    padding: 10px 4px 4px;
    font-weight: 500;
}

@media (max-width: 640px) {
    .phone-frame { width: min(240px, 80vw); }
    .phone-row, .phone-gallery { gap: 18px; }
}

/* ===== Mac screenshot gallery =====
   Mac shots are wider than tall — they're captured from the app's own
   content view (no titlebar), so we wrap them in a minimal browser-style
   frame with three traffic-light dots to read as a desktop window. */

.mac-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 28px;
    margin-top: 8px;
}

.mac-frame {
    background: var(--bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow:
        0 30px 60px -20px rgba(15, 23, 42, 0.20),
        0 0 0 1px var(--border);
    margin: 0;
}
.mac-frame .titlebar {
    background: linear-gradient(180deg, #f3f4f6, #e5e7eb);
    border-bottom: 1px solid var(--border);
    padding: 9px 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.mac-frame .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}
.mac-frame .dot.red    { background: #ff5f57; }
.mac-frame .dot.yellow { background: #febc2e; }
.mac-frame .dot.green  { background: #28c840; }
.mac-frame img {
    width: 100%;
    display: block;
}
.mac-frame figcaption {
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
    padding: 12px 8px;
    font-weight: 500;
}

@media (max-width: 640px) {
    .mac-gallery { grid-template-columns: 1fr; gap: 18px; }
}

/* ===== Compare table ===== */

.compare {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0 48px;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.compare th, .compare td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}
.compare th {
    background: var(--bg-soft);
    font-weight: 600;
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.compare tr:last-child td { border-bottom: none; }
.compare td:nth-child(1) { color: var(--text-muted); }
.compare td:nth-child(2) strong { color: var(--accent); }

/* ===== Proof block ===== */

.proof {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    margin-top: 48px;
}
.proof h3 { font-size: 20px; margin-bottom: 16px; }
.proof p { margin: 16px 0 0; color: var(--text-muted); font-size: 15px; }
.proof strong { color: var(--text); }

/* ===== Feature grid ===== */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.feature {
    background: white;
    padding: 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.feature p { color: var(--text-muted); font-size: 14px; margin: 0; }

/* ===== Audience grid ===== */

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.audience {
    background: var(--bg-soft);
    padding: 24px;
    border-radius: var(--radius);
    font-size: 15px;
}
.audience p {
    margin: 8px 0 0;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.5;
}

/* ===== Pricing ===== */

.pricing { text-align: center; }
.price-card {
    background: white;
    padding: 48px 32px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    max-width: 520px;
    margin: 0 auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}
.price-card .price {
    font-size: 56px;
    font-weight: 700;
    color: var(--accent);
    margin: 0 0 12px;
}
.price-card .price span {
    font-size: 18px;
    color: var(--text-muted);
    font-weight: 500;
}
.price-card ul {
    list-style: none;
    padding: 0;
    margin: 28px 0 0;
    text-align: left;
    max-width: 360px;
    margin: 28px auto 0;
}
.price-card li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.price-card li:last-child { border-bottom: none; }

/* ===== FAQ ===== */

details {
    background: white;
    padding: 18px 24px;
    border-radius: 10px;
    margin-bottom: 12px;
    border: 1px solid var(--border);
}
details summary {
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    user-select: none;
}
details summary::after {
    content: "+";
    float: right;
    color: var(--text-muted);
    font-weight: 400;
}
details[open] summary::after { content: "−"; }
details p { color: var(--text-muted); font-size: 14px; margin: 12px 0 0; }

/* ===== Footer ===== */

.footer {
    background: var(--bg-dark);
    color: #94a3b8;
    padding: 48px 0;
    font-size: 14px;
    text-align: center;
}
.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.footer p { margin: 0; }
.footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}
.footer a { color: #cbd5e1; }

/* ===== Mobile ===== */

@media (max-width: 640px) {
    .hero { padding: 0 0 56px; }
    .hero h1 { margin-top: 48px; }
    .section { padding: 56px 0; }
    .nav ul { display: none; }
    .nav { padding: 16px 0; }
}