/* =========================================================
   VARIABLES
========================================================= */

:root {

  /* Nextgeneer = Blue */
  --blue: #3d9cff;
  --blue-bright: #67b7ff;
  --blue-dark: #126dcc;

  /* Lab = Teal / Green */
  --green: #25d6a0;
  --green-soft: rgba(37, 214, 160, 0.12);

  --bg: #08111f;
  --bg-soft: #0d1828;
  --surface: #101d2e;
  --surface-2: #14243a;

  --border: rgba(255, 255, 255, 0.10);

  --text: #f5f8ff;
  --text-soft: #b8c4d6;
  --text-muted: #8290a6;

  --danger: #ff7474;

  --white: #ffffff;

  --shadow:
    0 20px 60px rgba(0, 0, 0, 0.25);

  --radius: 18px;
  --radius-small: 12px;

  --container: 1180px;

  --transition:
    180ms ease;
}


/* =========================================================
   LIGHT THEME
========================================================= */

html[data-theme="light"] {

  --bg: #f6f8fc;
  --bg-soft: #eef3f9;
  --surface: #ffffff;
  --surface-2: #f0f5fb;

  --border: rgba(12, 30, 55, 0.10);

  --text: #101c2d;
  --text-soft: #45556b;
  --text-muted: #66768c;

  --blue: #146dcc;
  --blue-bright: #0c7ae6;
  --blue-dark: #0d5cac;

  --green: #15966c;
  --green-soft: rgba(21, 150, 108, 0.10);

  --shadow:
    0 20px 60px rgba(15, 35, 60, 0.10);
}


/* =========================================================
   RESET
========================================================= */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {

  margin: 0;

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

  background: var(--bg);
  color: var(--text);

  line-height: 1.6;

  transition:
    background-color var(--transition),
    color var(--transition);
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

::selection {
  background: var(--blue);
  color: white;
}


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

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

@media (prefers-reduced-motion: reduce) {

  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

}


/* =========================================================
   LAYOUT
========================================================= */

.container {

  width:
    min(
      calc(100% - 40px),
      var(--container)
    );

  margin-inline: auto;
}

.narrow-container {
  max-width: 820px;
  margin-inline: auto;
}

.centered {
  text-align: center;
}

.section {
  padding: 100px 0;
}

.dark-section {
  background: var(--bg-soft);
}

.light-alt {
  background: var(--surface-2);
}


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

.site-header {

  position: sticky;
  top: 0;
  z-index: 1000;

  background:
    color-mix(
      in srgb,
      var(--bg) 90%,
      transparent
    );

  backdrop-filter: blur(16px);

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

.nav-container {

  min-height: 76px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 24px;
}


/* =========================================================
   BRAND
========================================================= */

.brand {

  display: inline-flex;
  align-items: center;

  gap: 10px;

  flex-shrink: 0;
}

.brand-mark {

  width: 38px;
  height: 38px;

  display: grid;
  place-items: center;

  border-radius: 11px;

  background:
    linear-gradient(
      135deg,
      var(--blue),
      var(--green)
    );

  color: white;

  font-weight: 900;

  box-shadow:
    0 8px 25px rgba(61, 156, 255, 0.18);
}

.brand-text {

  display: flex;

  flex-direction: column;

  justify-content: center;

  line-height: 1;
}

.brand-owner {

  display: block;

  margin-bottom: 4px;

  color: var(--text-muted);

  font-size: 0.52rem;

  font-weight: 650;

  letter-spacing: 0.08em;

  text-transform: uppercase;
}

.brand-name {

  display: block;

  color: var(--blue-bright);

  font-size: 1.12rem;

  font-weight: 900;

  letter-spacing: -0.025em;
}

.brand-name em {

  color: var(--green);

  font-style: normal;

  font-weight: 950;
}


/* =========================================================
   NAVIGATION
========================================================= */

.main-nav {

  display: flex;

  align-items: center;

  gap: 22px;

  font-size: 0.88rem;

  font-weight: 600;
}

.main-nav > a:not(.btn) {
  color: var(--text-soft);
}

.main-nav > a:not(.btn):hover {
  color: var(--text);
}

.nav-cta {
  margin-left: 4px;
}

/* FREE AWS TRAINING NAV ITEM */

.nav-free-aws {

  color: var(--green) !important;

  font-weight: 800 !important;

  padding: 6px 10px;

  border-radius: 8px;

  background: var(--green-soft);

  transition:
    color var(--transition),
    background-color var(--transition);
}

.nav-free-aws:hover {

  color: var(--green) !important;

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

.header-actions {

  display: flex;

  align-items: center;

  gap: 8px;
}

.theme-toggle,
.mobile-menu-btn {

  width: 42px;
  height: 42px;

  display: grid;
  place-items: center;

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

  border-radius: 10px;

  background: var(--surface);

  color: var(--text);

  cursor: pointer;

  transition:
    transform var(--transition),
    background-color var(--transition);
}

.theme-toggle:hover,
.mobile-menu-btn:hover {
  transform: translateY(-2px);
}

.mobile-menu-btn {
  display: none;
}


/* =========================================================
   BUTTONS
========================================================= */

.btn {

  min-height: 44px;

  display: inline-flex;

  align-items: center;
  justify-content: center;

  padding: 11px 18px;

  border: 1px solid transparent;

  border-radius: 11px;

  font-weight: 750;

  font-size: 0.9rem;

  cursor: pointer;

  transition:
    transform var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

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

.btn-primary {

  background:
    linear-gradient(
      135deg,
      var(--blue),
      var(--blue-dark)
    );

  color: white;

  box-shadow:
    0 10px 30px rgba(30, 130, 220, 0.20);
}

/* Free AWS Training CTA */

.nav-free-aws {
  background: var(--green) !important;
  border-color: var(--green) !important;
  color: #ffffff !important;
  
}

.nav-free-aws:hover {
  background: var(--green) !important;
  border-color: var(--green) !important;
  color: #ffffff !important;
  transform: translateY(-1px);
}

.btn-primary:hover {

  box-shadow:
    0 14px 34px rgba(30, 130, 220, 0.30);
}

.btn-secondary {

  border-color: var(--border);

  background: var(--surface);

  color: var(--text);
}

.btn-large {

  min-height: 52px;

  padding: 14px 22px;

  font-size: 0.96rem;
}

.btn-full {
  width: 100%;
}


/* =========================================================
   TYPOGRAPHY
========================================================= */

.eyebrow {

  margin-bottom: 13px;

  color: var(--blue-bright);

  font-size: 0.72rem;

  font-weight: 850;

  letter-spacing: 0.14em;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.15;
}

h1 {

  max-width: 800px;

  margin-bottom: 22px;

  font-size:
    clamp(2.5rem, 6vw, 5rem);

  letter-spacing: -0.045em;
}

h1 span {

  display: block;

  color: var(--blue-bright);
}

h2 {

  margin-bottom: 18px;

  font-size:
    clamp(2rem, 4vw, 3.2rem);

  letter-spacing: -0.035em;
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--text-soft);
}

.section-heading {

  max-width: 720px;

  margin-bottom: 50px;
}

.section-heading p {

  max-width: 680px;

  margin-bottom: 0;
}

.section-heading.centered {
  margin-inline: auto;
}


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

.hero {

  padding-top: 80px;

  padding-bottom: 90px;

  background:

    radial-gradient(
      circle at 10% 10%,
      rgba(61, 156, 255, 0.13),
      transparent 35%
    ),

    radial-gradient(
      circle at 90% 20%,
      rgba(37, 214, 160, 0.08),
      transparent 32%
    );
}

.hero-grid {

  display: grid;

  grid-template-columns:
    minmax(0, 1.2fr)
    minmax(320px, 0.8fr);

  align-items: center;

  gap: 70px;
}

.hero-text {

  max-width: 680px;

  font-size: 1.1rem;

  line-height: 1.8;
}

.hero-actions {

  display: flex;

  flex-wrap: wrap;

  gap: 12px;

  margin-top: 30px;
}

.no-pressure {

  margin-top: 14px;

  color: var(--text-muted);

  font-size: 0.82rem;
}


/* =========================================================
   HERO EXPERIMENT MESSAGE
========================================================= */

.hero-experiment-note {

  display: flex;

  align-items: flex-start;

  gap: 13px;

  max-width: 620px;

  margin-top: 28px;

  padding: 16px 18px;

  border:
    1px solid rgba(37, 214, 160, 0.25);

  border-radius: 14px;

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

.experiment-icon {

  width: 32px;
  height: 32px;

  flex-shrink: 0;

  display: grid;
  place-items: center;

  border-radius: 9px;

  background: var(--green);

  color: white;

  font-size: 0.9rem;

  font-weight: 900;
}

.hero-experiment-note strong {

  display: block;

  margin-bottom: 3px;

  color: var(--text);
}

.hero-experiment-note p {

  margin: 0;

  color: var(--text-soft);

  font-size: 0.84rem;

  line-height: 1.55;
}


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

.hero-card {

  padding: 30px;

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

  border-radius: var(--radius);

  background:
    linear-gradient(
      145deg,
      var(--surface),
      var(--surface-2)
    );

  box-shadow: var(--shadow);
}

.hero-card-label {

  color: var(--text-muted);

  font-size: 0.7rem;

  font-weight: 850;

  letter-spacing: 0.14em;
}

.hero-card h2 {

  margin-top: 10px;

  font-size: 2rem;
}

.hero-card-intro {

  margin-bottom: 25px;

  font-size: 0.9rem;

  line-height: 1.65;
}

.process-mini {

  display: grid;

  gap: 18px;
}

.process-mini > div {

  display: grid;

  grid-template-columns: 42px 1fr;

  column-gap: 12px;
}

.process-mini span {

  grid-row: span 2;

  width: 38px;
  height: 38px;

  display: grid;

  place-items: center;

  border-radius: 10px;

  background: var(--green-soft);

  color: var(--green);

  font-size: 0.72rem;

  font-weight: 850;
}

.process-mini strong {
  align-self: end;
}

.process-mini p {

  margin: 3px 0 0;

  font-size: 0.84rem;
}


/* =========================================================
   HERO VISUAL / TRAINING APPROACH
========================================================= */

.hero-visual {

  display: flex;

  flex-direction: column;

  gap: 22px;

  transform: translateY(-18px);
}

.training-approach-card {

  padding: 14px;

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

  border-radius: var(--radius);

  background:
    linear-gradient(
      145deg,
      var(--surface),
      var(--surface-2)
    );

  box-shadow: var(--shadow);

  overflow: hidden;
}

.training-approach-card img {

  width: 100%;

  max-height: 390px;

  height: auto;

  display: block;

  border-radius: 10px;

  object-fit: contain;
}


/* =========================================================
   FREE AWS TRAINING
========================================================= */

.free-aws-section {
  background: var(--surface-2);
}

.free-aws-card {

  display: grid;

  grid-template-columns:
    minmax(0, 1.5fr)
    minmax(240px, 0.7fr);

  align-items: center;

  gap: 50px;

  padding: 50px;

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

  border-radius: 24px;

  background: var(--surface);

  box-shadow: var(--shadow);
}

.free-aws-content h2 {
  margin-top: 10px;
  margin-bottom: 18px;
}

.free-aws-intro {

  font-size: 1.12rem;

  line-height: 1.75;

  max-width: 720px;

  margin-bottom: 18px;
}

.free-aws-content > p:last-child {
  max-width: 700px;
}

.free-aws-highlight {

  display: flex;

  flex-direction: column;

  align-items: center;

  justify-content: center;

  text-align: center;

  min-height: 190px;

  padding: 30px;

  border-radius: 20px;

  background: var(--green-soft);

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

.free-aws-icon {

  font-size: 3rem;

  line-height: 1;

  margin-bottom: 18px;
}

.free-aws-highlight strong {

  font-size: 1.15rem;

  margin-bottom: 7px;
}

.free-aws-highlight span:last-child {

  color: var(--text-soft);

  font-size: 0.9rem;
}


/* =========================================================
   TRACKS
========================================================= */

.track-grid {

  display: grid;

  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap: 24px;
}

.track-card {

  position: relative;

  display: flex;

  flex-direction: column;

  padding: 30px;

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

  border-radius: var(--radius);

  background: var(--surface);

  box-shadow:
    0 15px 45px rgba(0, 0, 0, 0.08);
}

.featured-card {

  border-color:
    rgba(61, 156, 255, 0.45);
}

.track-card-top {

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 10px;

  margin-bottom: 18px;
}

.track-label {

  color: var(--blue-bright);

  font-size: 0.7rem;

  font-weight: 850;

  letter-spacing: 0.12em;
}

.track-duration {

  padding: 5px 9px;

  border-radius: 999px;

  background: var(--green-soft);

  color: var(--green);

  font-size: 0.72rem;

  font-weight: 750;
}

.track-card h3 {

  margin-bottom: 12px;

  font-size: 1.65rem;
}

.track-audience {

  min-height: 72px;

  margin-bottom: 25px;
}

.price {

  display: flex;

  align-items: baseline;

  gap: 12px;

  padding: 18px 0;

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

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

.price span {

  color: var(--text);

  font-size: 2rem;

  font-weight: 900;

  letter-spacing: -0.04em;
}

.price small {
  color: var(--text-muted);
}

.included {
  margin-top: 25px;
}

.included h4 {
  margin-bottom: 15px;
}

.check-list {

  display: grid;

  gap: 10px;

  margin: 0;

  padding: 0;

  list-style: none;
}

.check-list li {

  position: relative;

  padding-left: 27px;

  color: var(--text-soft);
}

.check-list li::before {

  content: "✓";

  position: absolute;

  left: 0;

  top: 0;

  color: var(--green);

  font-weight: 900;
}

.track-note {

  margin-top: 22px;

  padding: 15px;

  border-radius: 10px;

  background: var(--bg-soft);

  font-size: 0.86rem;
}

.track-card .btn {

  margin-top: auto;

  padding-top: 13px;
}

.important-note {

  margin-top: 25px;

  padding: 18px 20px;

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

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

  background: var(--surface);

  color: var(--text-soft);

  font-size: 0.88rem;
}

.important-note strong {
  color: var(--text);
}


/* =========================================================
   BIG MESSAGE
========================================================= */

.big-message {

  padding: 40px;

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

  border-radius: var(--radius);

  background: var(--surface);

  box-shadow: var(--shadow);
}

.big-message p {

  font-size: 1.25rem;

  line-height: 1.8;
}

.big-message p:last-child {
  margin-bottom: 0;
}

.big-message strong {
  color: var(--text);
}


/* =========================================================
   PROJECTS
========================================================= */

.experiment-banner {

  display: flex;

  align-items: flex-start;

  gap: 16px;

  margin-top: -20px;

  margin-bottom: 45px;

  padding: 20px 22px;

  border:
    1px solid rgba(37, 214, 160, 0.25);

  border-radius: var(--radius);

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

.experiment-banner-icon {

  width: 40px;
  height: 40px;

  flex-shrink: 0;

  display: grid;

  place-items: center;

  border-radius: 11px;

  background: var(--green);

  color: white;

  font-size: 1rem;

  font-weight: 900;
}

.experiment-banner strong {

  display: block;

  margin-bottom: 4px;

  color: var(--text);

  font-size: 0.95rem;
}

.experiment-banner p {

  margin: 0;

  font-size: 0.85rem;

  line-height: 1.6;
}

.project-grid {

  display: grid;

  grid-template-columns:
    repeat(4, minmax(0, 1fr));

  gap: 18px;
}

.project-card {

  padding: 25px;

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

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

  background: var(--surface);

  transition:
    transform var(--transition),
    border-color var(--transition);
}

.project-card:hover {

  transform: translateY(-3px);

  border-color:
    rgba(37, 214, 160, 0.30);
}

.project-icon {

  width: 46px;
  height: 46px;

  display: grid;

  place-items: center;

  margin-bottom: 20px;

  border-radius: 12px;

  background: var(--green-soft);

  color: var(--green);

  font-size: 1.25rem;
}

.project-card h3 {
  margin-bottom: 10px;
}

.project-card p {

  margin-bottom: 0;

  font-size: 0.9rem;
}


/* =========================================================
   STEPS
========================================================= */

.steps-grid {

  display: grid;

  grid-template-columns:
    repeat(5, minmax(0, 1fr));

  gap: 14px;
}

.step-card {

  padding: 24px;

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

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

  background: var(--surface);

  transition:
    transform var(--transition),
    border-color var(--transition);
}

.step-card:hover {

  transform: translateY(-3px);

  border-color:
    rgba(61, 156, 255, 0.30);
}

.step-card > span {

  display: inline-block;

  margin-bottom: 25px;

  color: var(--blue-bright);

  font-size: 0.72rem;

  font-weight: 850;
}

.step-card h3 {
  margin-bottom: 10px;
}

.step-card p {

  margin-bottom: 0;

  font-size: 0.86rem;
}


/* =========================================================
   MENTOR
========================================================= */

.mentor-grid {

  display: grid;

  grid-template-columns:
    360px minmax(0, 1fr);

  gap: 70px;

  align-items: center;
}

.mentor-photo {

  overflow: hidden;

  aspect-ratio: 1 / 1;

  border-radius: 28px;

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

  background: var(--surface);

  box-shadow: var(--shadow);
}

.mentor-photo img {

  width: 100%;
  height: 100%;

  object-fit: cover;
}

.mentor-lead {
  font-size: 1.15rem;
}

.credential-box {

  margin-top: 30px;

  padding: 24px;

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

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

  background: var(--surface);
}

.credential-box h3 {
  margin-bottom: 20px;
}

.credential-group {

  display: grid;

  grid-template-columns: 100px 1fr;

  gap: 20px;

  padding: 15px 0;

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

.credential-group:first-of-type {
  border-top: 0;
}

.credential-group strong {
  color: var(--text);
}

.credential-group span {
  color: var(--text-soft);
}

.mentor-meta {

  display: grid;

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

  gap: 12px;

  margin-top: 18px;
}

.mentor-meta div {

  padding: 16px;

  border-radius: 12px;

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

.mentor-meta strong,
.mentor-meta span {
  display: block;
}

.mentor-meta strong {

  margin-bottom: 5px;

  font-size: 0.82rem;
}

.mentor-meta span {

  color: var(--text-muted);

  font-size: 0.8rem;
}

.text-link {

  display: inline-flex;

  margin-top: 22px;

  color: var(--blue-bright);

  font-weight: 750;
}

.text-link:hover {
  text-decoration: underline;
}


/* =========================================================
   FIT SECTION
========================================================= */

.fit-grid {

  display: grid;

  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap: 20px;
}

.fit-card {

  padding: 30px;

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

  border-radius: var(--radius);

  background: var(--surface);
}

.fit-card p {
  margin-bottom: 0;
}

.not-fit {

  max-width: 760px;

  margin: 35px auto 0;

  padding: 28px;

  border:
    1px solid rgba(255, 116, 116, 0.20);

  border-radius: var(--radius);

  background:
    rgba(255, 116, 116, 0.04);
}

.not-fit h3 {
  margin-bottom: 18px;
}

.negative-list li::before {

  content: "×";

  color: var(--danger);
}


/* =========================================================
   STUDENT STORIES
========================================================= */

.testimonial-grid {
  display: grid;

  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap: 22px;
}

.testimonial-card {
  position: relative;

  padding: 32px;

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

  border-radius: var(--radius);

  background: var(--surface);

  box-shadow:
    0 15px 45px rgba(0, 0, 0, 0.08);
}

.testimonial-quote {
  color: var(--blue-bright);

  font-size: 3rem;
  font-weight: 900;

  line-height: 0.8;

  margin-bottom: 18px;
}

.testimonial-card blockquote {
  margin: 0 0 25px;

  color: var(--text-soft);

  font-size: 1rem;

  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  flex-direction: column;

  gap: 3px;

  padding-top: 18px;

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

.testimonial-author strong {
  color: var(--text);
}

.testimonial-author span {
  color: var(--text-muted);

  font-size: 0.8rem;
}


/* MOBILE */

@media (max-width: 650px) {

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

  .testimonial-card {
    padding: 25px;
  }

}

/* =========================================================
   FAQ
========================================================= */

.faq-container {
  max-width: 850px;
}

.faq-list {

  display: grid;

  gap: 10px;
}

.faq-list details {

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

  border-radius: 12px;

  background: var(--surface);

  overflow: hidden;
}

.faq-list summary {

  position: relative;

  padding: 20px 55px 20px 20px;

  color: var(--text);

  font-weight: 750;

  cursor: pointer;

  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {

  content: "+";

  position: absolute;

  right: 20px;
  top: 50%;

  transform: translateY(-50%);

  color: var(--blue-bright);

  font-size: 1.3rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {

  margin: 0;

  padding: 0 20px 20px;

  font-size: 0.9rem;
}


/* =========================================================
   FINAL CTA
========================================================= */

.final-cta {

  padding-top: 120px;

  padding-bottom: 120px;

  background:

    radial-gradient(
      circle at center,
      rgba(61, 156, 255, 0.14),
      transparent 50%
    );
}

.final-cta-inner {

  max-width: 800px;

  margin-inline: auto;

  text-align: center;
}

.final-cta-inner p {

  max-width: 650px;

  margin: 0 auto 28px;

  font-size: 1.05rem;
}


/* =========================================================
   COURSE DETAIL PAGE
========================================================= */

.page-hero {

  padding-top: 90px;

  padding-bottom: 70px;
}

.page-hero h1 {

  margin-inline: auto;

  font-size:
    clamp(2.5rem, 5vw, 4rem);
}

.page-hero p {

  max-width: 700px;

  margin-inline: auto;

  font-size: 1.05rem;
}

.course-detail-grid {

  display: grid;

  grid-template-columns:
    repeat(2, minmax(0, 1fr));

  gap: 24px;
}

.course-detail-card {

  padding: 32px;

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

  border-radius: var(--radius);

  background: var(--surface);

  box-shadow: var(--shadow);
}

.course-detail-header {

  padding-bottom: 25px;

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

.course-detail-header h2 {

  margin-top: 12px;

  font-size: 2rem;
}

.course-detail-header p {
  min-height: 70px;
}

.course-section {

  padding: 25px 0;

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

.course-section:last-of-type {
  border-bottom: 0;
}

.course-section h3 {
  margin-bottom: 16px;
}

.topic-grid {

  display: flex;

  flex-wrap: wrap;

  gap: 8px;
}

.topic-grid span {

  padding: 7px 10px;

  border-radius: 8px;

  background: var(--bg-soft);

  color: var(--text-soft);

  font-size: 0.78rem;
}

.philosophy-box {

  margin: 20px 0;

  padding: 20px;

  border-radius: 12px;

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

.philosophy-box p {
  margin-bottom: 0;
}

.refund-box {

  max-width: 700px;

  margin-inline: auto;

  padding: 35px;

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

  border-radius: var(--radius);

  background: var(--surface);

  text-align: center;
}

.refund-box p {
  margin-bottom: 0;
}


/* =========================================================
   INTEREST PAGE
========================================================= */

.interest-page {

  min-height:
    calc(100vh - 76px);

  display: grid;

  place-items: center;

  padding: 70px 0;
}

.interest-card {

  max-width: 700px;

  margin-inline: auto;

  padding: 55px 35px;

  text-align: center;

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

  border-radius: 24px;

  background: var(--surface);

  box-shadow: var(--shadow);
}

.success-icon {

  width: 70px;
  height: 70px;

  display: grid;

  place-items: center;

  margin: 0 auto 25px;

  border-radius: 50%;

  background: var(--green-soft);

  color: var(--green);

  font-size: 2rem;

  font-weight: 900;
}

.interest-card h1 {

  margin-inline: auto;

  font-size:
    clamp(2.2rem, 5vw, 3.5rem);
}

.interest-card p {

  max-width: 560px;

  margin-inline: auto;
}

.interest-actions {

  display: flex;

  flex-direction: column;

  align-items: center;

  gap: 8px;

  margin-top: 30px;
}

.interest-actions .text-link {
  margin-top: 5px;
}


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

.site-footer {

  padding-top: 55px;

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

  background: var(--bg);
}

.footer-grid {

  display: grid;

  grid-template-columns:
    2fr repeat(3, 1fr);

  gap: 40px;

  padding-bottom: 45px;
}

.footer-grid > div {

  display: flex;

  flex-direction: column;

  align-items: flex-start;
}

.footer-grid .brand {
  margin-bottom: 15px;
}

.footer-grid h3 {

  margin-bottom: 15px;

  font-size: 0.9rem;
}

.footer-grid a,
.footer-grid span {

  margin-bottom: 8px;

  color: var(--text-muted);

  font-size: 0.82rem;
}

.footer-grid a:hover {
  color: var(--text);
}

.footer-grid p {

  max-width: 280px;

  margin-bottom: 0;

  font-size: 0.85rem;
}

.footer-bottom {

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 20px;

  padding: 20px 0;

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

  color: var(--text-muted);

  font-size: 0.75rem;
}

.simple-footer {
  padding-top: 0;
}


/* =========================================================
   FLOATING WHATSAPP
========================================================= */

.floating-whatsapp {

  position: fixed;

  right: 22px;
  bottom: 22px;

  z-index: 900;

  display: inline-flex;

  align-items: center;

  gap: 9px;

  padding: 12px 16px;

  border-radius: 999px;

  background: #25d366;

  color: white;

  box-shadow:
    0 12px 35px rgba(0, 0, 0, 0.25);

  font-size: 0.82rem;

  font-weight: 800;

  transition:
    transform var(--transition);
}

.floating-whatsapp:hover {
  transform: translateY(-3px);
}

.floating-whatsapp span {
  font-size: 1.15rem;
}


/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1100px) {

  .main-nav {
    gap: 14px;
  }

  .project-grid {

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

  .steps-grid {

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

}


@media (max-width: 900px) {

  .section {
    padding: 75px 0;
  }


  /* HEADER */

  .mobile-menu-btn {
    display: grid;
  }

  .main-nav {

    position: absolute;

    top: 76px;

    left: 20px;
    right: 20px;

    display: none;

    flex-direction: column;

    align-items: stretch;

    padding: 18px;

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

    border-radius: 16px;

    background: var(--surface);

    box-shadow: var(--shadow);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav > a:not(.btn) {
    padding: 10px 5px;
  }

  .nav-free-aws {
    padding: 10px 5px;
  }

  .nav-cta {

    margin-top: 8px;

    margin-left: 0;
  }


  /* HERO */

  .hero-grid {

    grid-template-columns: 1fr;

    gap: 40px;
  }

  .hero-card {
    max-width: 650px;
  }

  .hero-visual {
    transform: none;
    width: 100%;
  }

  .training-approach-card {
    padding: 10px;
  }

  .free-aws-card {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px;
  }

  .free-aws-highlight {
    min-height: 160px;
  }


  /* TRACKS */

  .track-grid,
  .course-detail-grid {
    grid-template-columns: 1fr;
  }


  /* MENTOR */

  .mentor-grid {

    grid-template-columns: 1fr;

    gap: 40px;
  }

  .mentor-photo {
    max-width: 360px;
  }


  /* FIT */

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


  /* FOOTER */

  .footer-grid {

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

}


@media (max-width: 650px) {

  .container {

    width:
      min(
        calc(100% - 28px),
        var(--container)
      );
  }

  .section {
    padding: 60px 0;
  }


  /* BRAND */

  .brand-owner {
    font-size: 0.48rem;
  }

  .brand-name {
    font-size: 1rem;
  }


  /* TYPOGRAPHY */

  h1 {
    font-size: 2.45rem;
  }

  h2 {
    font-size: 2rem;
  }


  /* HERO */

  .hero {
    padding-top: 70px;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .hero-experiment-note {
    padding: 14px;
  }

  .free-aws-card {
    padding: 24px;
  }

  .free-aws-intro {
    font-size: 1rem;
  }


  /* EXPERIMENT */

  .experiment-banner {

    margin-top: -10px;

    margin-bottom: 30px;

    padding: 17px;
  }


  /* TRACK */

  .track-card,
  .course-detail-card {
    padding: 23px;
  }

  .track-card h3 {
    font-size: 1.45rem;
  }

  .price span {
    font-size: 1.75rem;
  }


  /* PROJECTS */

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


  /* STEPS */

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


  /* MENTOR */

  .credential-group {

    grid-template-columns: 1fr;

    gap: 5px;
  }

  .mentor-meta {
    grid-template-columns: 1fr;
  }


  /* BIG MESSAGE */

  .big-message {
    padding: 25px;
  }

  .big-message p {
    font-size: 1.05rem;
  }


  /* FOOTER */

  .footer-grid {
    grid-template-columns: 1fr;

    gap: 28px;
  }

  .footer-bottom {

    flex-direction: column;

    align-items: flex-start;
  }


  /* WHATSAPP */

  .floating-whatsapp {

    right: 14px;
    bottom: 14px;

    width: 52px;
    height: 52px;

    justify-content: center;

    padding: 0;

    border-radius: 50%;
  }

  .floating-whatsapp strong {
    display: none;
  }


  /* INTEREST */

  .interest-card {
    padding: 40px 22px;
  }

}


@media (max-width: 420px) {

  .brand-name {
    font-size: 0.94rem;
  }

  .brand-mark {

    width: 35px;
    height: 35px;
  }

  .theme-toggle,
  .mobile-menu-btn {

    width: 38px;
    height: 38px;
  }

}