/* CoachTI — One-pager
   Principles: larger type, comfortable measure, calm contrast, minimal ornamentation. */

:root {
  /* "Cloud Dancer" inspired off-white base + calm luxe accents (web approximations). */
  --bg: #fbfbf8;          /* airy off-white */
  --paper: #ffffff;       /* true white for cards */
  --ink: #14161a;         /* near-black for readability */
  --muted: #4b5563;       /* slate */
  --border: #e6e7e2;      /* soft line */
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);

  --accent: #1f2a44;      /* deep navy (premium) */
  --accent-2: #2b5f73;    /* muted teal */
  --tint: #f2f4f2;        /* soft tint section */
  --header-bg: rgba(251, 251, 248, 0.92);

  --radius: 14px;

  /* Typography */
  --font: ui-sans-serif, system-ui, -apple-system, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --fs-base: 19px;        /* bigger base for 55+ */
  --lh: 1.65;             /* comfortable leading */
  --measure: 68ch;        /* readable line length */
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --paper: #141a21;
    --ink: #f2f4f7;
    --muted: #b7c0cc;
    --border: #263041;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);

    --accent: #d7dde7;
    --accent-2: #8fb7c6;
    --tint: #121821;
    --header-bg: rgba(15, 18, 22, 0.92);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: var(--lh);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: anywhere;
}

a {
  color: var(--accent-2);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
}

a:focus-visible,
.button:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 12px;
}

.container {
  width: min(100% - 2rem, 1040px);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.skip-link:focus {
  left: 1rem;
  z-index: 10;
}

.site-header {
  position: sticky;
  top: 0;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.brand__mark {
  width: 14px;
  height: 42px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
}

.brand__name {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand__tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: 10px;
}

.nav a:hover {
  background: var(--tint);
}

.hero {
  padding: 3.2rem 0 2.2rem;
}

.hero h1 {
  max-width: var(--measure);
  font-size: clamp(1.9rem, 2.8vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.4px;
  margin: 0 0 1rem 0;
}

.lead {
  max-width: var(--measure);
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0 0 1.4rem 0;
}

.cta-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin: 0.8rem 0 0.6rem 0;
}

.button {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border: 1px solid transparent;
}

.button:hover {
  filter: brightness(1.05);
}

.button--ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
}

.section {
  padding: 2.6rem 0;
}

.section h2 {
  margin: 0 0 0.8rem 0;
  font-size: 1.6rem;
  letter-spacing: -0.2px;
}

.section p, .section ul {
  max-width: var(--measure);
}

.section--tint {
  background: var(--tint);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: 1.2rem;
}

.card {
  grid-column: span 6;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.1rem 1.0rem;
}

.card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.grid--two .card {
  grid-column: span 6;
}

.grid--two {
  grid-template-columns: repeat(12, 1fr);
}

.card ul {
  margin: 0.6rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
}

.card li {
  margin: 0.25rem 0;
}

.contact-box {
  max-width: var(--measure);
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.1rem;
  margin-top: 1rem;
}

.contact-line {
  margin: 0;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: baseline;
}

.contact-label {
  color: var(--muted);
  font-weight: 600;
}

.contact-value {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.micro {
  max-width: var(--measure);
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 720px) {
  .card { grid-column: span 12; }
  .nav { gap: 0.25rem; }
}