/* Infrastreamtech — minimalist premium theme */
:root {
  --ink: #1a2e2e;
  --ink-soft: #3d5550;
  --muted: #6b7f78;
  --paper: #f7f9f7;
  --paper-deep: #eef3ef;
  --line: #d5e0da;
  --accent: #2f6b5c;
  --accent-deep: #1f4a40;
  --accent-soft: #dceae4;
  --warn: #8b4518;
  --ok: #1f6b4a;
  --err: #9b2c2c;
  --radius: 2px;
  --shadow: 0 18px 40px rgba(26, 46, 46, 0.08);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Figtree", "Segoe UI", sans-serif;
  --max: 1120px;
  --header-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(47, 107, 92, 0.08), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(26, 46, 46, 0.05), transparent 50%),
    linear-gradient(180deg, #fbfcfb 0%, var(--paper) 40%, #f4f7f5 100%);
  line-height: 1.65;
  min-height: 100vh;
}

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

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 550;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  margin: 0 0 0.6em;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin: 0 0 0.55em;
}

h3 {
  font-size: 1.25rem;
  margin: 0 0 0.45em;
}

p {
  margin: 0 0 1em;
  color: var(--ink-soft);
}

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

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(251, 252, 251, 0.88);
  border-bottom: 1px solid rgba(213, 224, 218, 0.7);
}

.header-inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand:hover {
  color: var(--accent-deep);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent-deep);
}

.site-nav .nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
}

.site-nav .nav-cta:hover {
  background: var(--accent-deep);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  background: var(--ink);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #fbfcfb;
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.25rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav.is-open {
    display: flex;
  }
}

/* Hero — full bleed */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  color: #f4f8f6;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(18, 36, 34, 0.35) 0%, rgba(18, 36, 34, 0.72) 55%, rgba(14, 28, 26, 0.9) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 4.5rem 0 4rem;
  animation: rise 0.9s ease both;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  margin: 0 0 0.35em;
  color: #fff;
  letter-spacing: -0.04em;
}

.hero-lead {
  max-width: 34rem;
  font-size: 1.15rem;
  color: rgba(244, 248, 246, 0.9);
  margin-bottom: 1.6rem;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary {
  background: #e8f0ec;
  color: var(--accent-deep);
}

.btn-primary:hover {
  background: #fff;
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.btn-solid {
  background: var(--accent);
  color: #fff;
}

.btn-solid:hover {
  background: var(--accent-deep);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

section {
  padding: 5rem 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.section-intro {
  max-width: 36rem;
  margin-bottom: 2.5rem;
}

.proof-strip {
  padding: 2.5rem 0;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.proof-grid strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--ink);
  letter-spacing: -0.03em;
}

.proof-grid span {
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 700px) {
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.course-grid,
.blog-grid,
.tier-grid,
.benefit-grid {
  display: grid;
  gap: 1.75rem;
}

.course-grid,
.blog-grid {
  grid-template-columns: repeat(3, 1fr);
}

.benefit-grid {
  grid-template-columns: repeat(3, 1fr);
}

.tier-grid {
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
}

@media (max-width: 900px) {
  .course-grid,
  .blog-grid,
  .benefit-grid,
  .tier-grid {
    grid-template-columns: 1fr;
  }
}

.media-tile {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper-deep);
}

.media-tile img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.media-tile:hover img {
  transform: scale(1.04);
}

.tile-body {
  padding: 1.25rem 0 0;
}

.tile-body h3 {
  margin-bottom: 0.35em;
}

.tile-body h3 a {
  color: inherit;
  text-decoration: none;
}

.tile-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
}

.benefit-item {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.benefit-item:last-child {
  border-bottom: 1px solid var(--line);
}

.quote-stack {
  display: grid;
  gap: 2rem;
}

.quote {
  max-width: 42rem;
  padding: 0;
  margin: 0;
  border: none;
}

.quote p {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  color: var(--ink);
  line-height: 1.4;
}

.quote footer {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.cta-band {
  background:
    linear-gradient(135deg, rgba(47, 107, 92, 0.12), rgba(26, 46, 46, 0.05)),
    #fff;
  border-block: 1px solid var(--line);
  text-align: left;
}

.page-hero {
  padding: 4rem 0 2.5rem;
  animation: rise 0.7s ease both;
}

.page-hero p {
  max-width: 38rem;
  font-size: 1.1rem;
}

.prose {
  max-width: 44rem;
}

.prose h2 {
  margin-top: 2.2em;
}

.prose ul,
.prose ol {
  color: var(--ink-soft);
  padding-left: 1.2rem;
}

.prose li {
  margin-bottom: 0.45rem;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0 2rem;
  font-size: 0.95rem;
}

.legal-table th,
.legal-table td {
  border: 1px solid var(--line);
  padding: 0.75rem 0.85rem;
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  background: var(--paper-deep);
  color: var(--ink);
  font-weight: 600;
}

.tier {
  padding: 1.75rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.tier:hover {
  border-color: var(--accent-soft);
  box-shadow: var(--shadow);
}

.tier.featured {
  border-color: var(--accent);
  background: #fff;
}

.tier-price {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--ink);
  letter-spacing: -0.03em;
}

.tier-price span {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--muted);
}

.tier ul {
  margin: 0.5rem 0 1.25rem;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  flex: 1;
}

.form {
  display: grid;
  gap: 1.1rem;
  max-width: 36rem;
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form label {
  font-weight: 600;
  font-size: 0.95rem;
}

.form input,
.form select,
.form textarea {
  font: inherit;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.field-error {
  color: var(--err);
  font-size: 0.88rem;
  min-height: 1.2em;
}

.form-status {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  display: none;
}

.form-status.is-success {
  display: block;
  border-color: #b7d8c7;
  background: #eef8f2;
  color: var(--ok);
}

.form-status.is-error {
  display: block;
  border-color: #e2b6b6;
  background: #fbf0f0;
  color: var(--err);
}

.contact-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
}

@media (max-width: 800px) {
  .contact-panel {
    grid-template-columns: 1fr;
  }
}

.contact-aside {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
}

.faq p {
  margin-top: 0.75rem;
}

.module-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.module-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.25rem;
}

.module-list strong {
  color: var(--ink);
}

.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  align-items: center;
  margin: 2rem 0;
}

.instructor img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
}

.rating {
  color: var(--accent-deep);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-footer {
  margin-top: 3rem;
  background: #152826;
  color: rgba(244, 248, 246, 0.82);
  padding: 3.5rem 0 0;
}

.site-footer .brand {
  color: #fff;
}

.site-footer a {
  color: rgba(244, 248, 246, 0.82);
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
}

.site-footer h3 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}

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

.site-footer li {
  margin-bottom: 0.45rem;
}

.footer-inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.footer-meta {
  font-size: 0.9rem;
  color: rgba(244, 248, 246, 0.75);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 0 1.4rem;
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 800px) {
  .footer-inner,
  .footer-cols {
    grid-template-columns: 1fr;
  }
}

.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  max-width: 34rem;
  margin-inline: auto;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.35rem;
  display: none;
  animation: rise 0.45s ease both;
}

.cookie-banner.is-visible {
  display: block;
}

.cookie-banner p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.cookie-actions {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.inline-error {
  margin: 1rem auto;
  width: min(100% - 2.5rem, var(--max));
  padding: 0.85rem 1rem;
  border: 1px solid #e2b6b6;
  background: #fbf0f0;
  color: var(--err);
}

.not-found {
  min-height: 60vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 3rem 1.25rem;
}

.split-visual {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.split-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}

@media (max-width: 850px) {
  .split-visual {
    grid-template-columns: 1fr;
  }
}

.case-study {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.case-study + .case-study {
  border-bottom: 1px solid var(--line);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}