:root {
  --bg: #f2f5f8;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --text: #2f4356;
  --heading: #1f3447;
  --text-soft: #556879;
  --text-faint: #7b8a98;
  --line: rgba(31, 52, 71, 0.11);
  --line-strong: rgba(31, 52, 71, 0.18);
  --accent: #1f5a87;
  --accent-soft: #e7eff6;
  --shadow: 0 12px 36px rgba(31, 52, 71, 0.08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --max-width: 1180px;
  --content-width: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 90, 135, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(31, 52, 71, 0.06), transparent 24%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.page-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 108px 24px 80px;
}

.site-header {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1200;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(calc(var(--max-width) - 48px), calc(100% - 48px));
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 8px 24px rgba(31, 52, 71, 0.08);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--text-soft);
}

.brand-mainline {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  align-items: center;
}

.brand-name {
  color: var(--heading);
  font-weight: 600;
}

.brand-separator {
  color: var(--text-faint);
}

.brand-role {
  color: var(--text-soft);
}

.brand-subtitle {
  font-size: 12px;
  line-height: 1.35;
  color: var(--text-faint);
}

.top-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.top-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-soft);
  transition: color 0.2s ease, opacity 0.2s ease;
}

.linkedin-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.button .linkedin-icon {
  width: 18px;
  height: 18px;
  margin-right: 4px;
}

.top-links a:hover {
  color: var(--heading);
}

.language-switch {
  position: relative;
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-width: 108px;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text-soft);
  font: inherit;
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.language-toggle:hover,
.language-switch.is-open .language-toggle {
  color: var(--heading);
  border-color: rgba(31, 52, 71, 0.26);
  background: rgba(255, 255, 255, 0.9);
}

.language-toggle:focus-visible,
.language-option:focus-visible {
  outline: 2px solid rgba(31, 90, 135, 0.34);
  outline-offset: 2px;
}

.language-current {
  white-space: nowrap;
}

.language-caret {
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.2s ease;
}

.language-switch.is-open .language-caret {
  transform: rotate(-135deg) translateY(-1px);
}

.language-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: grid;
  min-width: 100%;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 28px rgba(31, 52, 71, 0.14);
  backdrop-filter: blur(12px);
}

.language-menu[hidden] {
  display: none;
}

.language-option {
  padding: 10px 12px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text-soft);
  font: inherit;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.language-option:hover,
.language-option.is-selected {
  background: var(--accent-soft);
  color: var(--heading);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.85fr) minmax(280px, 0.95fr);
  gap: 18px;
  align-items: stretch;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.58));
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.hero .eyebrow {
  margin-bottom: 10px;
}

.hero-copy {
  max-width: none;
}

.eyebrow,
.section-kicker,
.panel-label,
.work-meta {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3,
p,
ul {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(27px, 2.9vw, 38px);
  line-height: 1.06;
  letter-spacing: -0.045em;
  font-weight: 800;
  /* max-width: 19ch; */
  color: var(--heading);
}

h1 span {
  display: inline;
  color: #1f5a87;
  padding: 0 0.12em;
  border-radius: 0.2em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.hero-text {
  max-width: 66ch;
  margin-bottom: 14px;
  font-size: 15px;
  line-height: 1.52;
  color: var(--text-soft);
}

.hero-actions,
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #ffffff;
}

.button-primary:hover {
  background: #184c72;
}

.button-secondary {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.55);
  color: var(--heading);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.85);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-subline {
  max-width: 66ch;
  margin: 8px 0 14px;
  padding: 0 6px;
  font-size: 15px;
  line-height: 1.45;
  font-weight: 500;
  color: var(--heading);
}

.panel-card {
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
}

.panel-card-muted {
  background: linear-gradient(180deg, #eef3f8, #e8eff6);
}

.panel-list {
  margin: 0;
  padding-left: 18px;
}

.panel-list li,
.capability-group li {
  margin-bottom: 7px;
  color: var(--text-soft);
  line-height: 1.5;
}

.panel-flow {
  margin-bottom: 8px;
  font-size: 16px;
  line-height: 1.45;
  font-weight: 600;
  color: var(--heading);
}

.panel-note {
  margin-bottom: 0;
  color: var(--text-soft);
}

.section {
  padding: 88px 0 0;
}

.section-heading {
  margin-bottom: 28px;
}

h2 {
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: var(--heading);
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-weight: 650;
  color: var(--heading);
}

p,
li {
  font-size: 17px;
  line-height: 1.78;
  color: var(--text-soft);
}

.issue-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.issue-card,
.method-step,
.work-card,
.capability-group {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.issue-card p,
.method-step p,
.work-card p,
.capability-group ul {
  margin-bottom: 0;
}

.two-column .split-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  max-width: 980px;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.method-conclusion,
main > :not(section) {
  margin: 24px 0 0;
  padding: 18px 22px;
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: var(--accent-soft);
  font-size: 18px;
  line-height: 1.65;
  font-weight: 600;
  color: var(--heading);
}

.step-number {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.work-list {
  display: grid;
  gap: 18px;
}

.work-card {
  padding: 28px;
}

.book-feature {
  margin: 18px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(231, 239, 246, 0.72), rgba(255, 255, 255, 0.9));
}

.book-feature p {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
}

.book-feature-label {
  display: inline-block;
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--accent);
}

.book-feature a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-decoration-color: rgba(31, 90, 135, 0.55);
  text-underline-offset: 0.2em;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.book-feature a:hover {
  color: var(--heading);
  text-decoration-color: var(--heading);
}

.work-card h3 a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(31, 90, 135, 0.45);
  text-underline-offset: 0.18em;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.work-card h3 a:hover {
  color: var(--heading);
  text-decoration-color: var(--heading);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.capability-group ul {
  padding-left: 18px;
}

.closing-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.62));
  box-shadow: var(--shadow);
}

.closing-section .closing-card h2 {
  max-width: 100%;
}

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

.who-i-work-with-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.who-i-work-with-list li {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  font-size: 16px;
  line-height: 1.5;
  color: var(--heading);
}

.whatsapp-bubble {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 1px solid rgba(12, 101, 50, 0.18);
  background: #25d366;
  color: #ffffff;
  box-shadow: 0 10px 26px rgba(10, 91, 44, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.whatsapp-icon {
  width: 30px;
  height: 30px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.whatsapp-bubble:hover {
  transform: translateY(-2px);
  background: #21c45e;
  box-shadow: 0 14px 30px rgba(10, 91, 44, 0.34);
}

.whatsapp-bubble:focus-visible {
  outline: 2px solid #124f2f;
  outline-offset: 3px;
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .method-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .closing-card {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 102px 18px 56px;
  }

  .site-header {
    flex-wrap: wrap;
    top: 10px;
    width: calc(100% - 28px);
    gap: 14px;
    padding: 10px 12px;
  }

  .brand {
    flex: 1 1 100%;
  }

  .brand-mainline {
    gap: 8px;
  }

  .brand-subtitle {
    font-size: 11px;
  }

  .top-links {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .top-links a {
    min-width: 0;
  }

  .language-toggle {
    min-width: 102px;
  }

  .language-menu {
    left: 0;
    right: auto;
  }

  .hero {
    padding: 18px 14px;
    border-radius: 26px;
  }

  .section {
    padding-top: 64px;
  }

  .issue-grid,
  .two-column .split-content,
  .method-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    /* max-width: 11.5ch; */
    font-size: clamp(24px, 6.8vw, 31px);
  }

  h2 {
    max-width: 100%;
    font-size: clamp(28px, 8vw, 38px);
  }

  p,
  li {
    font-size: 16px;
    line-height: 1.72;
  }

  .hero-subline {
    margin: 8px 0 12px;
    padding: 0;
    font-size: 15px;
  }

  .method-conclusion,
  main > :not(section) {
    margin-top: 18px;
    padding: 16px 18px;
    font-size: 17px;
  }

  .button {
    width: 100%;
  }

  .whatsapp-bubble {
    right: 14px;
    bottom: 14px;
    width: 54px;
    height: 54px;
  }

  .whatsapp-icon {
    width: 28px;
    height: 28px;
  }

  .hero-actions,
  .closing-actions {
    flex-direction: column;
  }

  .who-i-work-with-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .who-i-work-with-list li {
    padding: 12px 14px;
    font-size: 15px;
  }

  .closing-card {
    padding: 24px 22px;
  }
}