:root {
	--z-bg: #f4f6f8; --z-text: #1e293b; --z-accent: #74bdec; --z-pale: #d4ebfa; --z-deep: #1d6a9e; --z-outline: #334155;
	--z-edge: clamp(20px, 5vw, 72px); --z-lead: 28px; --z-half: 14px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--z-bg); color: var(--z-text); font-family: "Source Serif 4", Georgia, serif; font-size: 15px; line-height: 1.55; text-wrap: pretty; }
a { color: var(--z-deep); text-underline-offset: 3px; }
a:hover { color: var(--z-text); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--z-deep); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--z-accent) 40%, transparent); }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.015em; margin: 0; }
[hidden] { display: none !important; }

.z-wrap { max-width: 1200px; margin: 0 auto; padding: 0 var(--z-edge); }

/* header */
.z-nav { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 20px; padding: 15px max(var(--z-edge), calc((100% - 1200px) / 2 + var(--z-edge))); }
.z-brand { display: flex; align-items: center; gap: 12px; margin-right: auto; color: var(--z-text); text-decoration: none; font-weight: 600; }
.z-brand:hover { color: var(--z-text); }
.z-brand .custom-logo { max-height: 48px; width: auto; }
.z-mark { display: block; flex: none; }
.z-brand-text { display: flex; flex-direction: column; line-height: 1; }
.z-brand-name { font-size: 20px; letter-spacing: -0.01em; }
.z-brand-sub { font-size: 11px; font-weight: 400; letter-spacing: 0.14em; text-transform: uppercase; color: var(--z-deep); margin-top: 4px; }
.z-menu { display: flex; flex-wrap: wrap; gap: 20px; list-style: none; margin: 0; padding: 0; }
.z-menu a, .z-navlink { color: inherit; text-decoration: none; font-size: 14px; }
.z-menu a:hover, .z-navlink:hover, .z-menu .current-menu-item > a { color: var(--z-deep); }

/* button */
.z-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; font-family: inherit; font-weight: 600; font-size: 14px; line-height: 1.2; padding: 10px 18px; border-radius: 2px; border: 1px solid var(--z-outline); background: var(--z-accent); color: var(--z-text); text-decoration: none; cursor: pointer; }
.z-btn:hover { background: var(--z-pale); color: var(--z-text); }
.z-btn:active { background: color-mix(in srgb, var(--z-accent) 80%, var(--z-text)); }

/* hero */
.z-hero { padding: calc(4 * var(--z-lead)) 0 calc(3 * var(--z-lead)); }
.z-hero h1 { font-size: clamp(42px, 6vw, 80px); line-height: 1.08; letter-spacing: -0.02em; margin-left: -0.035em; max-width: 14ch; }
.z-hero p { font-size: 17px; line-height: var(--z-lead); max-width: 48ch; margin: var(--z-lead) 0 0; color: color-mix(in srgb, var(--z-text) 85%, transparent); }
.z-actions { display: flex; gap: 15px; flex-wrap: wrap; margin-top: var(--z-lead); }

/* app previews */
.z-apps { padding: var(--z-lead) 0 calc(3 * var(--z-lead)); }
.z-kicker { display: block; font-size: 13px; line-height: var(--z-half); letter-spacing: 0.08em; text-transform: uppercase; color: color-mix(in srgb, var(--z-text) 70%, transparent); margin: 0 0 var(--z-lead); text-align: center; }
.z-app-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: calc(2 * var(--z-lead)) clamp(24px, 3vw, 48px); }
.z-app { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--z-half); flex: 0 1 240px; min-width: 0; }
.z-phone { aspect-ratio: 9 / 19; width: 100%; max-width: 260px; border: 2px solid var(--z-outline); border-radius: 28px; padding: 8px; background: var(--z-pale); }
.z-screen { width: 100%; height: 100%; border-radius: 20px; overflow: hidden; display: grid; place-items: center; background: color-mix(in srgb, var(--z-bg) 55%, var(--z-pale)); font-size: 13px; color: color-mix(in srgb, var(--z-text) 65%, transparent); }
.z-screen img { width: 100%; height: 100%; object-fit: cover; }
.z-app h3 { font-size: 20px; line-height: var(--z-lead); margin-top: var(--z-half); }
.z-app h3 a { color: inherit; text-decoration: none; }
.z-app h3 a:hover { color: var(--z-deep); }
.z-app p { font-size: 15.5px; line-height: var(--z-lead); margin: 0; max-width: 32ch; color: color-mix(in srgb, var(--z-text) 75%, transparent); }
.z-tag { display: inline-flex; align-items: center; font-size: 11px; letter-spacing: 0.02em; padding: 3px 10px; border-radius: 1.5px; background: var(--z-pale); color: var(--z-deep); }

/* contact */
.z-contact { padding: calc(2 * var(--z-lead)) 0; }
.z-contact h2 { font-size: 32px; line-height: 1.15; }
.z-form { display: flex; flex-wrap: wrap; gap: 15px; align-items: stretch; max-width: 480px; margin-top: var(--z-lead); }
.z-input { flex: 1 1 220px; min-height: 36px; padding: 6px 10px; font: inherit; font-size: 14px; color: var(--z-text); caret-color: var(--z-deep); background: color-mix(in srgb, var(--z-bg) 90%, var(--z-text)); border: 1px solid color-mix(in srgb, var(--z-text) 16%, transparent); border-radius: 2px; }
.z-input::placeholder { color: color-mix(in srgb, var(--z-text) 65%, transparent); opacity: 1; }
.z-input:hover { border-color: color-mix(in srgb, var(--z-text) 45%, transparent); }
.z-input:focus-visible { border-color: var(--z-deep); outline-offset: 0; }
.z-note { font-size: 17px; line-height: var(--z-lead); margin: var(--z-lead) 0 0; color: var(--z-deep); font-style: italic; }
.z-note-error { color: var(--z-text); }
.z-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* footer */
.z-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 15px var(--z-lead); padding: calc(2 * var(--z-lead)) 0; font-size: 13px; line-height: var(--z-lead); color: color-mix(in srgb, var(--z-text) 70%, transparent); }

.z-legal { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.z-legal a { color: inherit; }
.z-legal a:hover { color: var(--z-deep); }

/* posts & pages */
.z-content { padding: calc(3 * var(--z-lead)) 0; max-width: 68ch; }
.z-entry + .z-entry { margin-top: calc(2 * var(--z-lead)); }
.z-entry h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.1; }
.z-entry h2 { font-size: 28px; line-height: 1.2; }
.z-entry h2 a { color: inherit; text-decoration: none; }
.z-entry-body { font-size: 17px; line-height: var(--z-lead); margin-top: var(--z-half); }