:root {
  --ink: #17201f;
  --muted: #596462;
  --paper: #f3f5f2;
  --surface: #ffffff;
  --line: #d8ddd7;
  --green: #246b55;
  --green-dark: #174b3d;
  --blue: #27384f;
  --coral: #c5533f;
  --shadow: 0 18px 48px rgba(23, 32, 31, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 56px);
  color: #ffffff;
  background: rgba(14, 24, 23, 0.62);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: #ffffff;
  color: var(--green);
  border-radius: 8px;
  font-size: 14px;
}

.brand-name {
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: clamp(14px, 3vw, 30px);
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  font-weight: 600;
}

.nav-links a:hover,
.header-cta:hover {
  color: #ffffff;
}

.header-cta {
  padding: 11px 16px;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 108px clamp(18px, 6vw, 84px) 70px;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 25, 24, 0.92) 0%, rgba(13, 25, 24, 0.72) 39%, rgba(13, 25, 24, 0.18) 74%),
    linear-gradient(0deg, rgba(13, 25, 24, 0.34), rgba(13, 25, 24, 0.1));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  color: #ffffff;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.hero-copy {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.hero-actions,
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-actions {
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.button-primary {
  color: #ffffff;
  background: var(--green);
  box-shadow: 0 12px 28px rgba(30, 95, 79, 0.28);
}

.button-primary:hover {
  background: var(--green-dark);
}

.button-secondary {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.32);
}

.trust-row {
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  font-weight: 700;
}

.trust-row span {
  padding: 8px 0;
  border-bottom: 2px solid rgba(255, 255, 255, 0.25);
}

.tool-cloud {
  max-width: 680px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 30px;
  opacity: 0.72;
}

.tool-cloud span {
  padding: 6px 9px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
}

.tool-cloud span:nth-child(3n) {
  transform: translateY(5px);
}

.tool-cloud span:nth-child(4n) {
  color: rgba(255, 255, 255, 0.5);
}

.tool-cloud span:nth-child(5n) {
  background: rgba(197, 83, 63, 0.16);
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(18px, 6vw, 84px);
}

.split,
.pricing-section,
.apply-section,
.service-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

.intro-copy,
.pricing-copy p,
.apply-copy p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.proof-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--line);
}

.metric {
  min-height: 150px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 28px;
  background: var(--surface);
}

.metric strong {
  color: var(--blue);
  font-size: 38px;
  line-height: 1;
}

.metric span {
  color: var(--muted);
  font-weight: 700;
}

.method-section {
  background: #ffffff;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.step-card,
.price-panel,
.apply-form,
blockquote {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.step-card {
  min-height: 240px;
  padding: 24px;
}

.step-number {
  display: inline-block;
  margin-bottom: 40px;
  color: var(--coral);
  font-weight: 800;
}

.step-card p,
blockquote {
  color: var(--muted);
  line-height: 1.6;
}

blockquote a {
  color: var(--green);
  font-weight: 800;
}

.service-section {
  background: #eaf0ed;
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.fit-item {
  min-height: 92px;
  display: flex;
  align-items: center;
  padding: 20px;
  background: rgba(255, 255, 255, 0.72);
  border-left: 4px solid var(--green);
  font-weight: 800;
}

.pricing-section {
  align-items: center;
}

.plans {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.price-panel {
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: clamp(26px, 5vw, 42px);
  box-shadow: var(--shadow);
}

.price-panel-accent {
  border-color: rgba(36, 107, 85, 0.46);
  box-shadow: 0 18px 48px rgba(36, 107, 85, 0.18);
}

.price-label {
  color: var(--muted);
  font-weight: 800;
}

.price-panel strong {
  color: var(--blue);
  font-size: clamp(58px, 9vw, 96px);
  line-height: 0.95;
}

.price-note {
  margin-bottom: 16px;
  color: var(--muted);
}

.testimonials-section {
  background: #ffffff;
}

.faq-section {
  background: var(--paper);
}

.examples-section {
  background: #ffffff;
}

.output-section {
  background: #eaf0ed;
}

.example-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.example-list article {
  min-height: 170px;
  padding: 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.example-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.output-list {
  display: grid;
  gap: 1px;
  background: rgba(23, 32, 31, 0.14);
  border: 1px solid rgba(23, 32, 31, 0.08);
}

.output-list div {
  display: grid;
  grid-template-columns: minmax(160px, 0.45fr) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 20px;
  background: rgba(255, 255, 255, 0.74);
}

.output-list strong {
  color: var(--ink);
  font-size: 18px;
}

.output-list span {
  color: var(--muted);
  line-height: 1.55;
}

.quotes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

blockquote {
  margin: 0;
  padding: 28px;
  font-size: 18px;
}

cite {
  display: block;
  margin-top: 18px;
  color: var(--ink);
  font-style: normal;
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 20px;
}

summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

details p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.apply-section {
  background: var(--ink);
  color: #ffffff;
}

.apply-copy p {
  color: rgba(255, 255, 255, 0.7);
}

.apply-form {
  display: grid;
  gap: 18px;
  padding: clamp(22px, 4vw, 34px);
  color: var(--ink);
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

input,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  color: var(--ink);
  background: #ffffff;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(30, 95, 79, 0.18);
  border-color: var(--green);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.form-note a {
  color: var(--green);
  font-weight: 800;
}

.plain-page {
  width: min(820px, calc(100% - 36px));
  margin: 0 auto;
  padding: 96px 0;
}

.plain-page h1 {
  color: var(--ink);
  font-size: clamp(42px, 7vw, 72px);
}

.plain-page p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.plain-back {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--green);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 6vw, 84px);
  color: rgba(255, 255, 255, 0.72);
  background: #0c1514;
  font-size: 14px;
}

.not-found {
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: clamp(28px, 8vw, 96px);
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(13, 25, 24, 0.94), rgba(13, 25, 24, 0.72)),
    url("assets/online-tutoring-hero.png") center / cover;
}

.not-found > div {
  width: min(680px, 100%);
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .split,
  .pricing-section,
  .apply-section,
  .service-section,
  .plans,
  .example-list,
  .quotes {
    grid-template-columns: 1fr;
  }

  .proof-band,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 64px;
  }

  .brand-name {
    display: none;
  }

  .header-cta {
    padding-inline: 12px;
  }

  .hero {
    min-height: 92vh;
    padding-top: 94px;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(13, 25, 24, 0.94), rgba(13, 25, 24, 0.64));
  }

  h1 {
    font-size: 42px;
  }

  .button,
  .hero-actions {
    width: 100%;
  }

  .tool-cloud {
    max-height: 120px;
    overflow: hidden;
  }

  .proof-band,
  .steps,
  .fit-grid {
    grid-template-columns: 1fr;
  }

  .output-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .site-footer {
    flex-direction: column;
  }
}