:root {
  --bg: #11161f;
  --bg-soft: #161d27;
  --surface: #19212d;
  --surface-alt: rgba(25, 33, 45, 0.76);
  --surface-strong: rgba(21, 29, 40, 0.92);
  --border: rgba(103, 126, 155, 0.2);
  --text: #eef5ff;
  --muted: #a9b6c8;
  --primary: #00d5ff;
  --primary-deep: #00a9d1;
  --shadow: 0 0 0 1px rgba(0, 213, 255, 0.08), 0 18px 50px rgba(0, 0, 0, 0.28);
  --shadow-hover: 0 0 0 1px rgba(0, 213, 255, 0.16), 0 24px 65px rgba(0, 0, 0, 0.36);
  --radius-lg: 22px;
  --radius-md: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at top, rgba(0, 213, 255, 0.14), transparent 35%),
    linear-gradient(180deg, #0b1118, #11161f 24%, #10151d 100%);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.22;
  z-index: -1;
}

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

button,
input {
  font: inherit;
}

.container {
  width: min(100% - 32px, 1200px);
  margin: 0 auto;
}

.narrow {
  max-width: 1080px;
}

.slim {
  max-width: 860px;
}

.section {
  position: relative;
  padding: 88px 0;
}

.section-muted {
  background: rgba(25, 33, 45, 0.34);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    inset 0 -1px 0 rgba(255, 255, 255, 0.03);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 213, 255, 0.2), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(0, 213, 255, 0.12), transparent 24%),
    linear-gradient(135deg, rgba(18, 25, 34, 0.2), rgba(8, 12, 18, 0.55)),
    url("https://httpanalytics-coursepro.lovable.app/assets/hero-bg-D154X1C1.jpg") center/cover no-repeat;
  opacity: 0.42;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(11, 17, 24, 0.58),
    rgba(11, 17, 24, 0.82) 50%,
    rgba(17, 22, 31, 0.96)
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 980px;
  padding: 80px 0;
}

.hero-content::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: min(220px, 42vw);
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 213, 255, 0.95),
    transparent
  );
  box-shadow: 0 0 18px rgba(0, 213, 255, 0.4);
}

h1,
h2 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.35rem, 5vw, 4.65rem);
  line-height: 1.08;
  margin-bottom: 28px;
}

h1 span,
.accent-text,
.salary-card strong,
.mentor-card span {
  color: var(--primary);
  text-shadow: 0 0 18px rgba(0, 213, 255, 0.35);
}

.hero-subtitle,
.section-header p,
.lead-text,
.salary-note,
.info-card p,
.check-item p,
.mentor-card p,
.salary-title {
  color: var(--muted);
}

.hero-subtitle {
  max-width: 760px;
  margin: 0 auto 36px;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 500;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 32px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(180deg, #1ce2ff, #00c6ee);
  color: #071019;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.18) inset,
    0 18px 35px rgba(0, 213, 255, 0.22);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
  cursor: pointer;
}

.cta-button:hover,
.cta-button:focus-visible {
  transform: translateY(-2px) scale(1.01);
  background: linear-gradient(180deg, #4be7ff, #11d6fb);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.24) inset,
    0 22px 42px rgba(0, 213, 255, 0.28);
}

.cta-button.wide {
  width: 100%;
}

.section-header {
  margin-bottom: 48px;
}

.section-header.centered,
.centered-block {
  text-align: center;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
  margin-bottom: 14px;
  text-wrap: balance;
}

.title-icon {
  display: inline-block;
  margin-right: 10px;
  filter: drop-shadow(0 0 12px rgba(0, 213, 255, 0.22));
}

.section-header p,
.lead-text {
  font-size: 1.125rem;
}

.card-grid {
  display: grid;
  gap: 20px;
}

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

.four-cols {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card,
.check-item,
.salary-card,
.mentor-card,
.audience-card,
.faq-item,
.mini-badge {
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.info-card,
.check-item,
.salary-card,
.mentor-card {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 45%),
    var(--surface-alt);
  backdrop-filter: blur(10px);
}

.info-card::before,
.check-item::before,
.salary-card::before,
.mentor-card::before,
.audience-card::before,
.faq-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 213, 255, 0.12),
    transparent 30%,
    transparent 70%,
    rgba(255, 255, 255, 0.03)
  );
  opacity: 0.8;
  pointer-events: none;
}

.info-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 213, 255, 0.28);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 14px;
  background: linear-gradient(
    180deg,
    rgba(0, 213, 255, 0.2),
    rgba(0, 213, 255, 0.08)
  );
  color: var(--primary);
  font-weight: 700;
  font-size: 1.15rem;
  box-shadow: inset 0 0 0 1px rgba(0, 213, 255, 0.12);
}

.info-card p,
.check-item p,
.mentor-card p,
.audience-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
}

.audience-card,
.faq-item {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 45%),
    var(--surface-alt);
  backdrop-filter: blur(10px);
}

.audience-card {
  padding: 24px 22px;
  border-radius: var(--radius-lg);
}

.audience-card h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 700;
}

.check-list {
  display: grid;
  gap: 16px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  border-radius: var(--radius-md);
}

.check-mark {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(0, 213, 255, 0.14);
  color: var(--primary);
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(0, 213, 255, 0.18);
}

.lead-text {
  max-width: 760px;
  margin: 0 auto 14px;
}

.lead-text.small {
  margin-bottom: 10px;
}

.accent-text {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

.salary-card,
.mentor-card {
  padding: 40px 34px;
  border-radius: 24px;
}

.salary-card strong {
  display: block;
  margin-bottom: 14px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  line-height: 1;
}

.salary-title {
  margin: 0 0 10px;
  font-size: 1.35rem;
  font-weight: 600;
}

.salary-note {
  margin: 0;
}

.mentor-card {
  display: grid;
  gap: 14px;
  text-align: left;
}

.tools-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.tool-pill {
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    var(--surface-strong);
  color: var(--text);
  font-weight: 600;
  box-shadow: var(--shadow);
}

.mini-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  margin-bottom: 20px;
  border-radius: 999px;
  background: linear-gradient(
    180deg,
    rgba(0, 213, 255, 0.12),
    rgba(0, 213, 255, 0.05)
  );
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 700;
  backdrop-filter: blur(8px);
}

.cta-section {
  padding-bottom: 96px;
}

.cta-section .cta-button {
  min-width: min(100%, 320px);
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border-radius: var(--radius-lg);
}

.faq-question {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.faq-toggle {
  color: var(--primary);
  font-size: 1.4rem;
  line-height: 1;
  flex: 0 0 auto;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 24px 24px;
  color: var(--muted);
}

@media (max-width: 960px) {
  .three-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 720px) {
  .section {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 34px;
  }

  .three-cols {
    grid-template-columns: 1fr;
  }

  .four-cols {
    grid-template-columns: 1fr;
  }

  .hero-content {
    padding: 60px 0;
  }

  .hero-content::after {
    bottom: 8px;
  }

  .cta-button {
    width: 100%;
  }

  .salary-card,
  .mentor-card,
  .audience-card {
    padding: 24px;
  }

  .faq-question {
    padding: 18px 18px;
  }

  .faq-answer p {
    padding: 0 18px 18px;
  }
}