/* ==========================================================================
   NimblePath Solutions — base stylesheet
   ========================================================================== */

:root {
  --color-navy-900: #0a1f33;
  --color-navy-700: #10263e;
  --color-navy-500: #1c3a5e;
  --color-gray-900: #1a1e24;
  --color-gray-600: #506374;
  --color-gray-300: #F2F2F2;
  --color-gray-100: #f4f6f8;
  --color-teal-100: #00A49D;
  --color-white: #ffffff;
  --color-accent: #b8863a;
  --color-accent-dark: #96692a;
  --card-bg: #F1EFE8;
  --card-border: #D3D1C7;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto;

  --header-height: 95px;
  --container-width: 1140px;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-gray-900);
  background-color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  color: var(--color-navy-900);
}

p {
  margin: 0 0 1em;
}

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding: 96px 0;
  scroll-margin-top: var(--header-height);
}

.section.alt-bg {
  background-color: var(--color-gray-100);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 0.75em;
}

.section-intro {
  font-size: 1rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.85em 1.75em;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--color-gray-600);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-navy-500);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-navy-900);
  border-color: var(--color-teal-100);
}

.btn-secondary:hover {
  border-color: var(--color-navy-900);
}

/* ---------- Header / nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: linear-gradient(to right, rgba(255,255,255,0.20), rgba(80,99,116,1.0));
  border-bottom: 3px solid var(--color-teal-100);
  z-index: 1000;
  backdrop-filter: saturate(180%) blur(6px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy-900);
  white-space: nowrap;
}

.logo span {
  font-weight: 400;
  color: var(--color-gray-600);
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.main-nav ul {
  display: flex;
  gap: 8px;
}

.nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-gray-300);
  border-radius: 4px;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-navy-900);
}

.nav-link.active {
  color: var(--color-navy-900);
  background-color: var(--color-gray-100);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-navy-900);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  padding-top: calc(var(--header-height) + 120px);
  padding-bottom: 120px;
  background: linear-gradient(180deg, var(--color-gray-100) 0%, var(--color-white) 100%);
}

.hero-inner {
  max-width: 760px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.85rem);
  margin-bottom: 0.5em;
}

.hero .lead {
  font-size: 1.15rem;
  color: var(--color-gray-600);
  margin-bottom: 1.75em;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Card grid ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.card {
  padding: 32px;
  background-color: var(--color-white);
  border: 2px solid var(--color-teal-100);
  border-radius: 8px;
}

.section.alt-bg .card {
  background-color: var(--color-white);
}

.card h3 {
  font-size: 1.1rem;
}

.card p {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

.bullet-list,
.bullet-sublist {
  list-style: none;
  margin: 1em 0 0;
  padding: 0;
}

.bullet-list > li,
.bullet-sublist > li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--color-gray-600);
}

.bullet-list > li::before,
.bullet-sublist > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-teal-100);
}

.bullet-sublist {
  margin-top: 8px;
  margin-left: 12px;
}

.bullet-sublist > li {
  font-size: 0.92em;
  margin-bottom: 8px;
}

.bullet-sublist > li::before {
  top: 0.75em;
  width: 8px;
  height: 2px;
  border-radius: 0;
}

.bullet-list > li:last-child,
.bullet-sublist > li:last-child {
  margin-bottom: 0;
}

/* ---------- Step grid ---------- */
.step-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.step-number {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 0.5em;
}

.step h3 {
  font-size: 1.1rem;
}

.step p {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

 /* ---------- Section blocks (Problem / Insight / Advantage / Results) ---------- */
  .block {
    margin-bottom: 24px;
  }

  .block h2 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--color-teal-100);
    margin: 0 0 8px;
  }

  .block h2 .subtitle {
    text-transform: none;
    font-weight: 400;
    font-style: italic;
    font-size: 0.85rem;
    letter-spacing: normal;
    color: var(--gray-light);
  }

  .block p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
  }

  /* ---------- Stat grid ---------- */
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 20px 0 36px;
  }

  .stat-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 18px 14px;
    text-align: center;
  }

  .stat-card .stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-teal-100);
    line-height: 1.1;
    margin-bottom: 6px;
  }

  .stat-card .stat-caption {
    display: block;
    font-size: 0.78rem;
    color: var(--color-gray-600);
    line-height: 1.35;
  }

/* ---------- Contact ---------- */
.contact-form-embed {
  width: 100%;
  margin-top: 48px;
}

.contact-form-embed iframe {
  display: block;
  width: 100%;
  height: 600px;
  max-width: 100%;
  border: none;
}

.contact-details {
  padding: 32px;
  background-color: var(--color-white);
  border: 2px solid var(--color-teal-100);
  border-radius: 8px;
}

.contact-details h3 {
  font-size: 1.1rem;
}

.contact-details a {
  color: var(--color-navy-500);
  text-decoration: underline;
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 32px 0;
  background-color: var(--color-gray-600);
  color: var(--color-gray-300);
}

.footer-inner p {
  margin: 0;
  font-size: 0.9rem;
  text-align: center;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .card-grid,
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-teal-100);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .main-nav.open {
    max-height: 400px;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
  }

  .nav-link {
    display: block;
    padding: 12px 8px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding-top: calc(var(--header-height) + 64px);
    padding-bottom: 72px;
  }

  .section {
    padding: 64px 0;
  }

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