/* 5G Network in Qatar — Internet Recharge Guide
   Shared stylesheet
   Palette: deep blue + gray + white
*/

:root {
  --color-bg: #ffffff;
  --color-surface: #f5f7fb;
  --color-surface-2: #eef2f8;
  --color-border: #dbe1ea;
  --color-text: #0b1726;
  --color-text-muted: #4a5a72;
  --color-text-subtle: #6b7a91;
  --color-primary: #1d4ed8;
  --color-primary-dark: #1e3a8a;
  --color-primary-soft: #e6edfb;
  --color-accent: #0f172a;
  --color-warn-bg: #fff5f0;
  --color-warn-border: #f0c5b1;
  --color-warn-text: #8a3a14;
  --max-width: 1180px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(11, 23, 38, 0.04);
  --shadow-md: 0 4px 12px rgba(11, 23, 38, 0.06);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 100;
}
.skip-link:focus {
  left: 8px;
  top: 8px;
}

/* ---------- Header ---------- */
.site-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
  color: var(--color-primary);
}

.brand-logo {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
}

.main-nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
  color: var(--color-text);
}

@media (max-width: 860px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px 20px;
  }
  .main-nav.is-open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 6px;
  }
  .main-nav a {
    display: block;
    padding: 10px 4px;
    border-bottom: 1px solid var(--color-surface-2);
  }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
}

/* ---------- Hero / Page Header ---------- */
.hero {
  background:
    linear-gradient(180deg, var(--color-primary-soft) 0%, #ffffff 100%),
    var(--color-surface);
  background-image:
    linear-gradient(to right, rgba(29, 78, 216, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29, 78, 216, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, var(--color-primary-soft) 0%, #ffffff 100%);
  background-size: 28px 28px, 28px 28px, 100% 100%;
  border-bottom: 1px solid var(--color-border);
  padding: 80px 0 96px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  color: var(--color-text);
  max-width: 880px;
}

.hero .lead {
  max-width: 720px;
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin: 0 0 32px;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.page-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 56px 0;
}
.page-header h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.page-header p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 720px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.97rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  text-decoration: none;
}
.btn-outline {
  background: #fff;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
}
.btn-secondary {
  background: var(--color-surface-2);
  color: var(--color-text);
}
.btn-secondary:hover {
  background: var(--color-border);
  color: var(--color-text);
  text-decoration: none;
}

/* ---------- Sections ---------- */
section.block {
  padding: 72px 0;
}
section.block.alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-heading {
  text-align: center;
  margin: 0 auto 48px;
  max-width: 720px;
}
.section-heading h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.section-heading p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 1.05rem;
}

/* ---------- Cards / Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  border-color: rgba(29, 78, 216, 0.45);
  box-shadow: var(--shadow-md);
}

.icon-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 8px;
  margin-bottom: 18px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}
.card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.97rem;
}

/* Trust banner */
.trust {
  text-align: center;
  padding: 64px 0;
}
.trust-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin: 0 auto 14px;
  display: block;
}
.trust h2 {
  font-size: 1.6rem;
  margin: 0 0 12px;
}
.trust p {
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 28px;
}

/* ---------- Disclaimer banner ---------- */
.disclaimer-banner {
  background: var(--color-warn-bg);
  border-bottom: 1px solid var(--color-warn-border);
  color: var(--color-warn-text);
  padding: 12px 16px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
}

/* ---------- Article ---------- */
.article {
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px 72px;
}
.article h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.article .lead {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin: 0 0 36px;
}
.article h2 {
  font-size: 1.55rem;
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
}
.article h3 {
  font-size: 1.18rem;
  margin: 28px 0 12px;
}
.article p {
  margin: 0 0 18px;
  color: var(--color-text);
}
.article ul {
  padding-left: 22px;
  margin: 0 0 18px;
}
.article ul li {
  margin-bottom: 8px;
}

.published-meta {
  color: var(--color-text-subtle);
  font-size: 0.92rem;
  margin: 0 0 24px;
}

/* ---------- Two-column layout (Network) ---------- */
.two-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}
@media (max-width: 900px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

.sidebar-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 22px;
}
.sidebar-card h3 {
  margin: 0 0 14px;
  font-size: 1.05rem;
}
.sidebar-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar-card li + li {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-surface-2);
}
.sidebar-card a {
  font-weight: 600;
  display: block;
}
.sidebar-card span {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Coverage visual */
.coverage-visual {
  position: relative;
  height: 240px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 18px 0 24px;
}
.coverage-visual::before,
.coverage-visual::after,
.coverage-visual .ring {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(29, 78, 216, 0.25);
}
.coverage-visual::before {
  width: 80px;
  height: 80px;
  background: rgba(29, 78, 216, 0.12);
  border-color: rgba(29, 78, 216, 0.45);
}
.coverage-visual::after {
  width: 160px;
  height: 160px;
  border-color: rgba(29, 78, 216, 0.18);
}
.coverage-visual .ring {
  width: 230px;
  height: 230px;
  border-color: rgba(29, 78, 216, 0.1);
}
.coverage-visual .label {
  position: absolute;
  bottom: 12px;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

/* ---------- Educational sections (Learn) ---------- */
.learn-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 28px;
  overflow: hidden;
}
.learn-card-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 22px 26px;
}
.learn-card-header .row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.learn-card-header h2 {
  margin: 0;
  font-size: 1.35rem;
}
.learn-card-header p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.97rem;
}
.learn-card-body {
  padding: 24px 26px;
}
.learn-card-body p {
  color: var(--color-text);
  margin: 0 0 14px;
}

/* ---------- Blog ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.blog-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  padding: 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.blog-card:hover {
  border-color: rgba(29, 78, 216, 0.45);
  box-shadow: var(--shadow-md);
}
.blog-card .tag {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 8px;
}
.blog-card h2 {
  font-size: 1.2rem;
  margin: 0 0 12px;
}
.blog-card p {
  color: var(--color-text-muted);
  margin: 0 0 22px;
  flex: 1;
}

/* ---------- Contact list ---------- */
.contact-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 16px;
}
.contact-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-box li + li {
  margin-top: 16px;
}
.contact-box strong {
  display: block;
  margin-bottom: 4px;
}
.contact-box span {
  color: var(--color-text-muted);
}

/* ---------- Disclaimer card ---------- */
.disclaimer-callout {
  background: var(--color-warn-bg);
  border-left: 4px solid #c2410c;
  padding: 20px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 28px 0;
}
.disclaimer-callout p {
  margin: 0;
  color: var(--color-warn-text);
  font-weight: 600;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-accent);
  color: #c1cad8;
  padding: 56px 0 32px;
  margin-top: 48px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 800px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
.site-footer h4 {
  color: #ffffff;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin: 0 0 14px;
}
.site-footer p,
.site-footer li {
  color: #94a3b8;
  font-size: 0.92rem;
  line-height: 1.6;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer li {
  margin-bottom: 8px;
}
.site-footer a {
  color: #cbd5e1;
}
.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}
.footer-disclaimer {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 32px;
  font-size: 0.88rem;
  color: #cbd5e1;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ---------- 404 ---------- */
.notfound {
  text-align: center;
  padding: 120px 24px;
}
.notfound h1 {
  font-size: 4rem;
  margin: 0 0 8px;
  color: var(--color-primary);
}
.notfound p {
  color: var(--color-text-muted);
  margin: 0 0 28px;
}