:root {
  --navy: #09275f;
  --navy-deep: #06183d;
  --navy-soft: #0c347d;
  --gold: #f7c928;
  --gold-deep: #e6b70f;
  --green: #0e7a45;
  --green-deep: #0c693b;
  --ink: #1c2744;
  --muted: #3e4d6e;
  --line: #e4e8f2;
  --bg: #f5f7fb;
  --white: #fff;
  --danger: #9f1239;
  --shadow: 0 10px 30px rgba(9, 39, 95, 0.08);
  --radius: 18px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  font-family: "Poppins", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

img,
svg {
  max-width: 100%;
}

h1,
h2,
h3 {
  color: var(--navy);
  line-height: 1.2;
}

p {
  margin: 0 0 0.8rem;
}

a {
  color: var(--navy);
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.btn-gold:focus-visible {
  outline-color: var(--navy);
}

::selection {
  background: var(--gold);
  color: var(--navy);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 80;
  background: var(--gold);
  color: var(--navy);
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  top: 0.6rem;
}

.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;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.section {
  padding: 3.25rem 0;
}

.section-intro {
  max-width: 42rem;
  margin-bottom: 1.5rem;
}

.section-intro h2,
.hero h1 {
  letter-spacing: -0.03em;
}

.section-intro h2 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  margin: 0.35rem 0 0.75rem;
}

.section-intro p,
.hero-copy {
  color: var(--muted);
  font-size: 1.05rem;
}

.eyebrow {
  margin: 0;
  color: var(--navy);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.5rem;
  height: 3px;
  margin-right: 0.5rem;
  border-radius: 99px;
  background: var(--gold);
  vertical-align: middle;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.7rem 1.15rem;
  border: 2px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--navy);
  font: inherit;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
}

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

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

.btn-gold {
  background: var(--gold);
  color: var(--navy);
}

.btn-gold:hover {
  background: var(--gold-deep);
}

.btn-whatsapp {
  background: var(--green);
  color: var(--white);
}

.btn-whatsapp:hover {
  background: var(--green-deep);
}

.btn-outline {
  background: var(--white);
  border-color: rgba(9, 39, 95, 0.18);
}

.btn-outline:hover {
  border-color: var(--navy);
  background: #f4f7fd;
}

.icon {
  width: 26px;
  height: 26px;
  display: block;
  flex: 0 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

.site-header::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--navy) 0 68%, var(--gold) 68% 100%);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(9, 39, 95, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--navy);
  text-decoration: none;
}

.brand-logo {
  width: 62px;
  height: 62px;
  object-fit: contain;
  flex: 0 0 auto;
  background: #fff;
  border-radius: 12px;
}

.brand-text {
  display: grid;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text small {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  background: #eef2f8;
  cursor: pointer;
}

.nav-toggle-box,
.nav-toggle-box::before,
.nav-toggle-box::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 99px;
  background: var(--navy);
  position: relative;
}

.nav-toggle-box::before,
.nav-toggle-box::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-box::before {
  top: -7px;
}

.nav-toggle-box::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  color: #243256;
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--navy);
  background: rgba(9, 39, 95, 0.05);
}

.nav-links a[aria-current="page"] {
  font-weight: 700;
}

.hero {
  position: relative;
  padding: 2.5rem 0 3rem;
  background:
    radial-gradient(900px 380px at 100% -10%, rgba(247, 201, 40, 0.28), transparent 60%),
    radial-gradient(680px 360px at -10% 10%, rgba(9, 39, 95, 0.08), transparent 55%),
    var(--bg);
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.hero-location {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 1rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(9, 39, 95, 0.06);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(247, 201, 40, 0.28);
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2.05rem, 4.6vw, 3.45rem);
}

.hero-kicker {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--navy);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.tagline {
  margin: 0 0 0.85rem;
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 600;
}

.tagline span {
  background-image: linear-gradient(var(--gold), var(--gold));
  background-repeat: no-repeat;
  background-size: 100% 0.35em;
  background-position: 0 88%;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0 0.85rem;
}

.hero-call {
  margin: 0;
  color: var(--muted);
}

.hero-call a {
  font-weight: 700;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  background: var(--white);
  box-shadow:
    0 0 0 6px var(--white),
    0 0 0 9px var(--gold),
    0 18px 50px rgba(9, 39, 95, 0.12);
}

.blob {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
}

.blob-gold {
  width: 240px;
  height: 240px;
  top: -80px;
  right: -70px;
  background: var(--gold);
}

.blob-navy {
  width: 220px;
  height: 220px;
  left: -80px;
  bottom: -90px;
  background: var(--navy);
}

.screen-card,
.float-cards {
  position: relative;
  z-index: 1;
}

.screen-card {
  margin: 1.25rem 1.25rem 0.5rem;
  padding: 0.75rem;
  border-radius: 16px;
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 20px 40px rgba(9, 39, 95, 0.25);
}

.screen-top {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.screen-top span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

.screen-top span:nth-child(2) {
  opacity: 0.65;
}

.screen-top span:nth-child(3) {
  opacity: 0.35;
}

.screen-top strong {
  margin-left: auto;
  font-size: 0.78rem;
  font-weight: 500;
  opacity: 0.8;
}

.screen-body {
  margin: 0.75rem 0 0;
  padding: 1rem;
  border-radius: 10px;
  background: var(--navy-deep);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.95rem;
  line-height: 1.7;
}

.screen-body p {
  margin: 0;
}

.c-g { color: #7dcea0; }
.c-y { color: var(--gold); }
.c-m { color: rgba(255, 255, 255, 0.62); }

.float-cards {
  display: grid;
  gap: 0.75rem;
  padding: 0.75rem 1rem 1rem;
}

.float-card {
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.float-card strong,
.float-card span {
  display: block;
}

.float-card strong {
  color: var(--navy);
}

.float-card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.highlights {
  display: grid;
  gap: 1rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.highlights li,
.point-list li,
.service-card,
.course-card,
.steps li,
.panel {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.highlights li {
  padding: 1rem;
}

.highlight-icon,
.service-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(9, 39, 95, 0.08);
  color: var(--navy);
}

.highlights h3,
.point-list h3,
.service-card h3,
.course-card h3 {
  margin: 0.65rem 0 0.3rem;
  font-size: 1.05rem;
}

.highlights p,
.point-list p,
.service-card p,
.course-card p {
  margin: 0;
  color: var(--muted);
}

.about-layout,
.contact-layout,
.project-layout,
.footer-grid {
  display: grid;
  gap: 1.5rem;
}

.point-list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.point-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  padding: 0.95rem 1rem;
}

.num {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 12px;
  background: var(--navy);
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 700;
}

.course-grid,
.service-grid,
.steps {
  display: grid;
  gap: 1rem;
}

.steps {
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}

.steps li {
  padding: 1rem;
}

.step-num {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.55rem;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  font-weight: 700;
}

.steps strong,
.steps span {
  display: block;
}

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

.course-card,
.service-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
}

.course-card p,
.service-card p {
  flex: 1;
}

.course-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(9, 39, 95, 0.08);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 700;
}

.course-mark--c,
.course-mark--cpp {
  background: #1d4e89;
  color: #fff;
}

.course-mark--python {
  background: #1f8a4c;
  color: #fff;
  font-size: 0.72rem;
}

.course-mark--java {
  background: #e24b2a;
  color: #fff;
}

.card-banner {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.5rem 0.95rem;
  border-radius: 8px;
  border-bottom: 3px solid var(--gold);
  background: var(--navy);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.course-card .btn,
.service-card .btn {
  width: 100%;
}

.project-band {
  padding-top: 0.5rem;
}

.project-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 4vw, 3rem);
  border-radius: 28px;
  background: var(--navy);
  color: var(--white);
}

.project-panel::before,
.project-panel::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.project-panel::after {
  width: 220px;
  height: 220px;
  top: -100px;
  right: -80px;
  background: var(--gold);
}

.project-panel::before {
  width: 180px;
  height: 180px;
  left: -70px;
  bottom: -80px;
  background: rgba(247, 201, 40, 0.16);
}

.project-panel > * {
  position: relative;
  z-index: 1;
}

.project-panel h2,
.project-panel h3,
.project-panel .eyebrow {
  color: var(--white);
}

.project-panel .eyebrow {
  color: var(--gold);
}

.project-panel p {
  color: rgba(255, 255, 255, 0.9);
}

.project-points {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.project-points li {
  padding: 0.8rem 0.95rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
}

.project-panel .btn {
  margin-top: 1.25rem;
}

.panel {
  padding: 1.25rem;
}

.contact-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
}

.contact-list h3 {
  margin: 0;
  color: #3e4d6e;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-list p,
.contact-list a {
  margin: 0;
}

.form-card h3 {
  margin: 0 0 0.35rem;
}

.form-lead {
  margin-bottom: 1rem;
  color: var(--muted);
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field label {
  font-weight: 600;
  color: var(--navy);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  background: #fbfcfe;
  color: var(--ink);
  font: inherit;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--navy);
  background: var(--white);
}

.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--danger);
}

.field-error {
  margin: 0;
  color: var(--danger);
  font-size: 0.85rem;
  font-weight: 600;
}

.interest-note,
.form-status,
.noscript-note {
  margin: 0 0 1rem;
  padding: 0.8rem 0.95rem;
  border-radius: 12px;
}

.interest-note {
  background: rgba(247, 201, 40, 0.22);
  color: var(--navy);
  font-weight: 600;
}

.form-status {
  display: grid;
  gap: 0.35rem;
  background: rgba(14, 122, 69, 0.1);
  color: #0b3d28;
}

.form-status p {
  margin: 0;
}

.form-status a {
  font-weight: 700;
  color: var(--green);
}

.noscript-note {
  background: rgba(9, 39, 95, 0.06);
}

.field-error[hidden],
.interest-note[hidden],
.form-status[hidden] {
  display: none;
}

.hp {
  position: absolute;
  left: -10000px;
  height: 0;
  overflow: hidden;
}

.form-card .btn {
  width: 100%;
}

.map-wrap {
  margin-top: 1.5rem;
  overflow: hidden;
  border-radius: 20px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 320px;
  border: 0;
}

.footer-wave {
  background: var(--bg);
  line-height: 0;
}

.footer-wave svg {
  display: block;
  width: 100%;
  height: 72px;
}

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.88);
}

.footer-grid {
  padding: 1rem 0 2rem;
}

.site-footer h2 {
  margin: 0 0 0.75rem;
  color: var(--gold);
  font-size: 1rem;
}

.site-footer a {
  color: var(--white);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-brand {
  color: var(--white);
  text-decoration: none;
}

.footer-links {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-bottom {
  padding: 0 0 5.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p {
  margin: 0;
  padding-top: 1rem;
  font-size: 0.92rem;
}

.whatsapp-fab {
  position: fixed;
  right: calc(1rem + env(safe-area-inset-right));
  bottom: calc(1rem + env(safe-area-inset-bottom));
  z-index: 45;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(14, 122, 69, 0.35);
}

.whatsapp-fab:hover {
  background: var(--green-deep);
  color: var(--white);
}

@media (max-width: 480px) {
  .hero-actions .btn {
    width: 100%;
  }
}

@media (min-width: 700px) {
  .highlights,
  .course-grid,
  .service-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .field-full {
    grid-column: 1 / -1;
  }

  .float-cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 800px) {
  .steps,
  .project-layout,
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .project-layout {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }

  .service-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 900px) {
  .section {
    padding: 4.75rem 0;
  }

  .hero-grid,
  .about-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }

  .contact-layout {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .contact-details {
    order: -1;
  }

  .form-card .btn {
    width: auto;
  }
}

@media (min-width: 1000px) {
  .highlights,
  .course-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .highlights {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1200px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 0.4rem 1.25rem 1.1rem;
    background: var(--white);
    border-top: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(9, 39, 95, 0.12);
  }

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

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .nav-links a {
    padding: 0.85rem 0.15rem;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }

  .site-nav .btn {
    width: 100%;
    margin-top: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

@media print {
  .whatsapp-fab,
  .nav-toggle,
  .hero-visual,
  .site-nav {
    display: none;
  }

  .site-header {
    position: static;
    box-shadow: none;
  }
}