/* ── Shared stylesheet for WhatChat content pages ──────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green: #25d366;
  --green-dark: #128c7e;
  --green-light: #dcf8c6;
  --white: #ffffff;
  --gray-light: #f5f5f5;
  --gray: #888888;
  --text: #1a1a1a;
  --text-light: #555555;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
  --radius: 16px;
}

html,
body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--gray-light);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--green-dark);
}

/* ── Header / nav ───────────────────────────────────────────────────────────── */
.site-header {
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
  text-decoration: none;
}

.brand span {
  color: var(--green-dark);
}

.brand svg {
  width: 28px;
  height: 28px;
  fill: var(--green);
}

.site-nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--green-dark);
}

/* ── Page content ───────────────────────────────────────────────────────────── */
.page {
  flex: 1;
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.page-hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
  color: var(--white);
  padding: 56px 24px;
  text-align: center;
}

.page-hero h1 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.page-hero p {
  opacity: 0.92;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

.page h2 {
  font-size: 1.3rem;
  margin: 28px 0 12px;
  color: var(--green-dark);
}

.page h2:first-child {
  margin-top: 0;
}

.page p,
.page li {
  color: var(--text-light);
  margin-bottom: 12px;
}

.page ul {
  padding-left: 22px;
  margin-bottom: 12px;
}

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

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--green);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  padding: 14px 30px;
  border-radius: 999px;
  box-shadow: var(--shadow);
  transition: transform 0.15s, background 0.2s;
}

.cta-btn:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
}

.cta-btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* ── Contact details ────────────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  gap: 16px;
  margin-top: 8px;
}

.contact-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.contact-item strong {
  color: var(--text);
}

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--text);
  color: #cfcfcf;
  margin-top: auto;
}

.site-footer .inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px;
  text-align: center;
}

.site-footer nav {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.site-footer nav a {
  color: #cfcfcf;
  text-decoration: none;
  font-size: 0.9rem;
}

.site-footer nav a:hover {
  color: var(--green);
}

.site-footer .copy {
  font-size: 0.82rem;
  color: var(--gray);
}

@media (max-width: 600px) {
  .site-header .inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-hero h1 {
    font-size: 1.6rem;
  }
  .card {
    padding: 24px;
  }
}