:root {
  --background: #0b1017;
  --background-alt: #0f1620;
  --surface: #121b27;
  --surface-hover: #162231;

  --text: #f3f6fa;
  --text-secondary: #b2bdca;
  --text-muted: #758294;

  --blue: #58a9ff;
  --blue-bright: #86c2ff;
  --blue-soft: rgba(88, 169, 255, 0.10);

  --border: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(88, 169, 255, 0.32);

  --page-width: 1120px;

  --radius-large: 18px;
  --radius-medium: 13px;
}


* {
  box-sizing: border-box;
}


html {
  scroll-behavior: smooth;
}


body {
  margin: 0;

  color: var(--text);

  background:
    radial-gradient(
      circle at 50% -10%,
      rgba(44, 112, 190, 0.13),
      transparent 32%
    ),
    var(--background);

  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  font-size: 16px;
  line-height: 1.7;

  -webkit-font-smoothing: antialiased;
}


a {
  color: inherit;
  text-decoration: none;
}


.wrap {
  width: min(
    calc(100% - 48px),
    var(--page-width)
  );

  margin-left: auto;
  margin-right: auto;
}


/* ========================================
   HEADER
======================================== */

.site-header {
  position: sticky;

  top: 0;

  z-index: 100;

  border-bottom:
    1px solid var(--border);

  background:
    rgba(11, 16, 23, 0.88);

  backdrop-filter:
    blur(18px);

  -webkit-backdrop-filter:
    blur(18px);
}


.header-inner {
  min-height: 72px;

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 30px;
}


.brand {
  color: var(--text);

  font-size: 16px;

  font-weight: 800;

  letter-spacing: 0.16em;

  transition:
    color 0.2s ease;
}


.brand:hover {
  color: var(--blue-bright);
}


.main-nav {
  display: flex;

  align-items: center;

  gap: 34px;
}


.main-nav a {
  position: relative;

  color: var(--text-secondary);

  font-size: 14px;

  font-weight: 600;

  transition:
    color 0.2s ease;
}


.main-nav a:hover {
  color: var(--text);
}


.main-nav a::after {
  content: "";

  position: absolute;

  left: 0;

  bottom: -7px;

  width: 0;

  height: 2px;

  background: var(--blue);

  border-radius: 999px;

  transition:
    width 0.2s ease;
}


.main-nav a:hover::after {
  width: 100%;
}


/* ========================================
   HERO
======================================== */

.hero {
  padding:
    112px 0
    108px;
}


.hero-inner {
  max-width: 980px;
}


.eyebrow {
  margin:
    0 0
    22px;

  display: flex;

  align-items: center;

  flex-wrap: wrap;

  gap: 9px;

  color: var(--blue-bright);

  font-size: 12px;

  font-weight: 750;

  letter-spacing: 0.11em;
}


.eyebrow span {
  color: var(--text-muted);
}


.hero h1 {
  max-width: 900px;

  margin:
    0 0
    28px;

  font-size:
    clamp(
      48px,
      6.4vw,
      76px
    );

  font-weight: 800;

  line-height: 1.04;

  letter-spacing: -0.052em;
}


.hero h1 span {
  display: block;

  color: #c4ced9;
}


.hero-description {
  max-width: 720px;

  margin:
    0 0
    36px;

  color: var(--text-secondary);

  font-size:
    clamp(
      17px,
      1.8vw,
      20px
    );

  line-height: 1.75;
}


.hero-actions {
  display: flex;

  align-items: center;

  flex-wrap: wrap;

  gap: 12px;
}


.button {
  min-height: 48px;

  padding:
    0 20px;

  display: inline-flex;

  align-items: center;

  justify-content: center;

  gap: 9px;

  border-radius: 11px;

  font-size: 14px;

  font-weight: 700;

  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}


.button:hover {
  transform:
    translateY(-2px);
}


.button-primary {
  color: #07111c;

  background: var(--blue);
}


.button-primary:hover {
  background: var(--blue-bright);
}


.button-secondary {
  color: var(--text);

  border:
    1px solid var(--border);

  background:
    rgba(255, 255, 255, 0.025);
}


.button-secondary:hover {
  border-color:
    var(--border-hover);

  background:
    var(--blue-soft);
}


/* ========================================
   COMMON SECTIONS
======================================== */

.content-section {
  padding:
    88px 0;
}


.section-header {
  margin-bottom: 36px;

  display: flex;

  align-items: flex-end;

  justify-content: space-between;

  gap: 48px;
}


.section-kicker {
  margin:
    0 0
    8px;

  color: var(--blue);

  font-size: 11px;

  font-weight: 800;

  letter-spacing: 0.14em;
}


.section-header h2 {
  max-width: 620px;

  margin: 0;

  font-size:
    clamp(
      28px,
      3.5vw,
      38px
    );

  line-height: 1.18;

  letter-spacing: -0.035em;
}


.section-description {
  max-width: 420px;

  margin: 0;

  color: var(--text-muted);

  font-size: 14px;
}


/* ========================================
   START HERE
======================================== */

.card-grid {
  display: grid;

  grid-template-columns:
    repeat(3, minmax(0, 1fr));

  gap: 18px;
}


.guide-entry {
  min-height: 320px;

  padding: 28px;

  display: flex;

  flex-direction: column;

  border:
    1px solid var(--border);

  border-radius:
    var(--radius-large);

  background:
    linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.035),
      rgba(255, 255, 255, 0.012)
    );

  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}


.guide-entry:hover {
  transform:
    translateY(-4px);

  border-color:
    var(--border-hover);

  background:
    var(--surface-hover);
}


.entry-top {
  margin-bottom: 38px;

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 16px;
}


.entry-number {
  color: var(--blue-bright);

  font-size: 12px;

  font-weight: 800;
}


.entry-category {
  color: var(--text-muted);

  font-size: 10px;

  font-weight: 800;

  letter-spacing: 0.12em;
}


.guide-entry h3 {
  margin:
    0 0
    16px;

  font-size: 20px;

  line-height: 1.4;

  letter-spacing: -0.022em;
}


.guide-entry h3 a {
  transition:
    color 0.2s ease;
}


.guide-entry h3 a:hover {
  color: var(--blue-bright);
}


.guide-entry p {
  margin:
    0 0
    24px;

  color: var(--text-secondary);

  font-size: 14px;
}


.text-link {
  margin-top: auto;

  display: inline-flex;

  align-items: center;

  gap: 8px;

  color: var(--blue);

  font-size: 13px;

  font-weight: 700;
}


.text-link span {
  transition:
    transform 0.2s ease;
}


.text-link:hover span {
  transform:
    translateX(4px);
}


/* ========================================
   COVERAGE
======================================== */

.coverage-section {
  border-top:
    1px solid var(--border);

  border-bottom:
    1px solid var(--border);

  background:
    rgba(255, 255, 255, 0.014);
}


.coverage-grid {
  display: grid;

  grid-template-columns:
    repeat(3, minmax(0, 1fr));

  gap: 18px;
}


.coverage-card {
  padding: 28px;

  min-height: 220px;

  border:
    1px solid var(--border);

  border-radius:
    var(--radius-large);

  background:
    rgba(8, 13, 19, 0.45);
}


.coverage-number {
  display: block;

  margin-bottom: 28px;

  color: var(--blue);

  font-size: 12px;

  font-weight: 800;
}


.coverage-card h3 {
  margin:
    0 0
    13px;

  font-size: 19px;

  letter-spacing: -0.018em;
}


.coverage-card p {
  margin: 0;

  color: var(--text-secondary);

  font-size: 14px;
}


/* ========================================
   LATEST GUIDES
======================================== */

#latest-guides {
  width: min(
    calc(100% - 48px),
    var(--page-width)
  );

  margin:
    0 auto;

  padding:
    92px 0
    108px;
}


#latest-guides > h2 {
  margin:
    0 0
    34px;

  font-size:
    clamp(
      28px,
      3.5vw,
      38px
    );

  line-height: 1.2;

  letter-spacing: -0.035em;
}


.guide-list {
  display: grid;

  gap: 18px;
}


.guide-card {
  padding:
    34px 36px;

  border:
    1px solid var(--border);

  border-radius:
    var(--radius-large);

  background:
    linear-gradient(
      120deg,
      rgba(88, 169, 255, 0.10),
      rgba(255, 255, 255, 0.026) 46%,
      rgba(255, 255, 255, 0.012)
    );

  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}


.guide-card::before {
  content: "LATEST GUIDE";

  display: block;

  margin-bottom: 15px;

  color: var(--blue-bright);

  font-size: 10px;

  font-weight: 800;

  letter-spacing: 0.14em;
}


.guide-card:hover {
  transform:
    translateY(-3px);

  border-color:
    var(--border-hover);
}


.guide-card h3 {
  max-width: 800px;

  margin:
    0 0
    15px;

  font-size:
    clamp(
      22px,
      2.8vw,
      30px
    );

  line-height: 1.3;

  letter-spacing: -0.025em;
}


.guide-card h3 a {
  transition:
    color 0.2s ease;
}


.guide-card h3 a:hover {
  color: var(--blue-bright);
}


.guide-card > p {
  max-width: 820px;

  margin:
    0 0
    19px;

  color: var(--text-secondary);

  font-size: 15px;
}


.guide-card > p:last-child {
  margin-bottom: 0;
}


.guide-card > p:last-child a {
  color: var(--blue);

  font-size: 14px;

  font-weight: 700;
}


/* ========================================
   FOOTER
======================================== */

.site-footer {
  border-top:
    1px solid var(--border);

  background:
    #080d13;
}


.footer-main {
  padding:
    48px 0
    40px;

  display: flex;

  align-items: flex-start;

  justify-content: space-between;

  gap: 48px;
}


.footer-about {
  max-width: 400px;
}


.footer-brand {
  color: var(--text);

  font-size: 14px;

  font-weight: 800;

  letter-spacing: 0.16em;
}


.footer-about p {
  margin:
    15px 0
    0;

  color: var(--text-muted);

  font-size: 13px;
}


.footer-nav {
  display: flex;

  align-items: center;

  flex-wrap: wrap;

  gap:
    16px 30px;
}


.footer-nav a {
  color: var(--text-secondary);

  font-size: 13px;

  font-weight: 600;

  transition:
    color 0.2s ease;
}


.footer-nav a:hover {
  color: var(--blue-bright);
}


.footer-bottom {
  padding:
    20px 0
    27px;

  border-top:
    1px solid var(--border);
}


.footer-bottom p {
  margin: 0;

  color: var(--text-muted);

  font-size: 12px;
}


/* ========================================
   ACCESSIBILITY
======================================== */

a:focus-visible {
  outline:
    2px solid var(--blue);

  outline-offset:
    4px;

  border-radius: 4px;
}


/* ========================================
   TABLET
======================================== */

@media (max-width: 900px) {

  .card-grid,
  .coverage-grid {
    grid-template-columns:
      1fr;
  }


  .guide-entry {
    min-height: auto;
  }


  .section-header {
    align-items: flex-start;

    flex-direction: column;

    gap: 14px;
  }


  .section-description {
    max-width: 650px;
  }


  .footer-main {
    flex-direction: column;
  }

}


/* ========================================
   MOBILE
======================================== */

@media (max-width: 640px) {

  .wrap,
  #latest-guides {
    width:
      min(
        calc(100% - 32px),
        var(--page-width)
      );
  }


  .header-inner {
    min-height: 66px;

    gap: 18px;
  }


  .brand {
    font-size: 13px;
  }


  .main-nav {
    gap: 16px;
  }


  .main-nav a {
    font-size: 12px;
  }


  .hero {
    padding:
      78px 0
      74px;
  }


  .hero h1 {
    font-size:
      clamp(
        40px,
        12vw,
        56px
      );
  }


  .hero-description {
    font-size: 17px;
  }


  .hero-actions {
    align-items: stretch;

    flex-direction: column;
  }


  .button {
    width: 100%;
  }


  .content-section {
    padding:
      68px 0;
  }


  .guide-entry,
  .coverage-card {
    padding: 23px;
  }


  #latest-guides {
    padding:
      70px 0
      80px;
  }


  .guide-card {
    padding:
      25px 23px;
  }


  .footer-nav {
    align-items: flex-start;

    flex-direction: column;

    gap: 13px;
  }

}