/* Devon Language School — landing page */

:root {
  --devon-blue: #2b6cb0;
  --devon-orange: #c46d1a;
  --navy: #152535;
  --navy-deep: #0f1c2a;
  --cream: #fdfcfa;
  --charcoal: #3d4349;
  --muted: #66707a;
  --ivory: #fdfcfa;
  --white: #ffffff;
  --surface: #f5f6f8;
  --surface-warm: #f7f5f2;
  --surface-academic: #e9edf2;
  --border: rgba(21, 37, 53, 0.08);
  --border-strong: rgba(21, 37, 53, 0.14);
  --shadow-sm: 0 1px 3px rgba(21, 37, 53, 0.04), 0 8px 24px rgba(21, 37, 53, 0.05);
  --shadow-md: 0 4px 20px rgba(21, 37, 53, 0.07);
  --radius: 8px;
  --radius-lg: 14px;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --max-width: 1100px;
  --header-h: 84px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--charcoal);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.18;
  color: var(--navy);
  margin: 0;
}

p {
  margin: 0;
}

fieldset {
  border: none;
  margin: 0;
  padding: 0;
}

legend {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

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

.section {
  padding: 6.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3.5rem;
}

.section-header--left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}

.section-header h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  letter-spacing: -0.015em;
}

.section-lead {
  margin-top: 1.125rem;
  font-size: 1.0625rem;
  color: var(--muted);
  max-width: 38rem;
  line-height: 1.7;
}

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  background: rgba(253, 252, 250, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.site-header .header-inner {
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: 1.25rem 2rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-right: auto;
}

.personal-logo {
  gap: 0.7rem;
  color: var(--navy);
}

.personal-logo__mark {
  display: block;
  flex: 0 0 auto;
  color: var(--navy);
}

.personal-logo__mark circle {
  fill: var(--devon-orange);
}

.personal-logo__type {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.personal-logo__name {
  color: var(--navy);
  font-size: 1.08rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  white-space: nowrap;
}

.personal-logo__subtitle {
  display: grid;
  grid-template-columns: minmax(1.2rem, 1fr) auto minmax(1.2rem, 1fr);
  align-items: center;
  gap: 0.55rem;
  color: var(--devon-orange);
  font-size: 0.61rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  white-space: nowrap;
}

.personal-logo__subtitle > span {
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav a:not(.btn) {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s;
}

.nav a:not(.btn):hover {
  color: var(--navy);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--navy);
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn-primary {
  position: relative;
  background: var(--navy);
  color: var(--white);
  border-bottom: 2px solid var(--devon-orange);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset;
}

.btn-primary:hover {
  background: #1c3348;
}

.btn-primary--panel {
  background: var(--white);
  color: var(--navy);
  border-bottom: 2px solid var(--devon-orange);
}

.btn-primary--panel:hover {
  background: var(--cream);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.72);
  color: var(--navy);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(4px);
}

.btn-secondary:hover {
  background: var(--white);
  border-color: rgba(21, 37, 53, 0.22);
}

.btn-header {
  padding: 0.6rem 1.125rem;
  font-size: 0.875rem;
  background: var(--navy);
  color: var(--white) !important;
  border-bottom: 2px solid var(--devon-orange);
}

.btn-header:hover {
  background: #1c3348;
}

.btn-full {
  width: 100%;
}

/* Hero — Concept 3 split layout */

.hero--split {
  margin-top: var(--header-h);
  min-height: clamp(560px, 80vh, 760px);
}

.hero-split {
  display: grid;
  grid-template-columns: 0.42fr 0.58fr;
  min-height: inherit;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: clamp(3rem, 6vw, 4.5rem) clamp(2rem, 4vw, 4rem);
  background: var(--navy-deep);
  position: relative;
}

.hero-panel-inner {
  width: 100%;
  max-width: 21.5rem;
  text-align: left;
  transform: translateY(0.85rem);
}

.hero-panel h1 {
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1.875rem;
  color: var(--white);
  max-width: 15.5em;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-label--panel {
  color: var(--devon-orange);
  margin-bottom: 1.875rem;
}

.hero-subhead--panel {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.84);
  line-height: 1.65;
  margin-bottom: 1.375rem;
  max-width: 32ch;
}

.hero-trust--panel {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.62);
  padding-left: 0.75rem;
  border-left: 2px solid var(--devon-orange);
  margin-bottom: 2.125rem;
  line-height: 1.55;
  max-width: 36ch;
}

.hero-classroom {
  position: relative;
  overflow: hidden;
  background: var(--navy-deep);
}

.hero-classroom::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(15, 28, 42, 0.32) 0%, transparent 24%),
    linear-gradient(180deg, transparent 65%, rgba(15, 28, 42, 0.06) 100%);
}

.hero-classroom img {
  width: 100%;
  height: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: 100% 30%;
  transform: scale(1.06) translateX(-2.5%);
  transform-origin: center top;
  filter: saturate(0.94) contrast(1.03);
}

.hero-classroom-badge {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  left: auto;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
  background: rgba(15, 28, 42, 0.72);
  backdrop-filter: blur(6px);
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.3);
}

.hero-actions {
  display: flex;
  align-items: flex-start;
}

.hero-actions .btn-primary--panel {
  font-size: 1rem;
  padding: 0.95rem 1.85rem;
}

.hero-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(21, 37, 53, 0.25);
}

.hero-link--panel {
  color: rgba(255, 255, 255, 0.88);
  text-decoration-color: rgba(255, 255, 255, 0.3);
}

.hero-link--panel:hover {
  text-decoration-color: var(--white);
}

.hero-benefits {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.hero-benefits--panel {
  border-top-color: rgba(255, 255, 255, 0.15);
}

.hero-benefits li {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
}

.hero-benefits--panel li {
  color: rgba(255, 255, 255, 0.62);
}

.hero-benefits li + li::before {
  content: "·";
  margin: 0 0.75rem;
  color: var(--devon-orange);
  font-weight: 700;
}

/* Problem */

.problem.section {
  padding: 5.25rem 0 4.5rem;
}

.problem .section-header {
  margin-bottom: 2.5rem;
}

.problem {
  background: var(--surface-warm);
}

.problem-list {
  display: grid;
  gap: 0;
  max-width: 42rem;
  margin: 0 auto 2.25rem;
  border-top: 1px solid var(--border);
}

.problem-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 1.0625rem;
  line-height: 1.62;
  color: var(--charcoal);
}

.problem-list strong {
  color: var(--navy);
  font-weight: 700;
}

.problem-list li > span {
  min-width: 0;
}

.problem-list li::before {
  content: "";
  flex-shrink: 0;
  width: 14px;
  height: 2px;
  margin-top: 0.72em;
  border-radius: 1px;
  background: var(--devon-orange);
}

.problem-highlight {
  max-width: 52rem;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 2px solid var(--devon-orange);
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.1vw, 1.45rem);
  font-weight: 500;
  font-style: italic;
  color: var(--navy);
  line-height: 1.45;
}

@media (min-width: 768px) {
  .problem-highlight {
    white-space: nowrap;
  }
}

/* Steps */

.steps {
  padding-bottom: 4rem;
  background: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.step-card {
  padding: 0;
  background: transparent;
  border: none;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 1.125rem;
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--devon-blue);
  background: rgba(43, 108, 176, 0.07);
  border-radius: 50%;
}

.step-card h3 {
  font-family: var(--font-sans);
  font-size: 1.025rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Group experience */

.group-experience.section {
  padding: clamp(4.5rem, 7vw, 6rem) 0;
  background: var(--surface-academic);
  border-block: 1px solid var(--border);
}

.group-experience-introduction {
  margin: 0;
}

.group-experience-introduction h2 {
  font-size: clamp(2rem, 3.6vw, 2.75rem);
  letter-spacing: -0.015em;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.group-experience-intro-stack {
  display: grid;
  gap: 1.25rem;
}

.group-experience-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(430px, 1.1fr);
  gap: clamp(2.75rem, 5vw, 5rem);
  align-items: start;
}

.group-experience-intro {
  font-size: 1.0625rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 37rem;
  margin: 0;
}

.group-experience-intro--emphasis {
  padding-left: 1.125rem;
  border-left: 2px solid var(--devon-orange);
}

.group-experience-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  max-width: none;
  margin: clamp(2.75rem, 5vw, 4rem) 0 0;
  border-block: 1px solid var(--border-strong);
}

.group-experience-list li {
  position: relative;
  padding: 1.65rem 1.5rem 1.65rem 2.35rem;
  border-right: 1px solid var(--border);
}

.group-experience-list li:last-child {
  border-right: 0;
}

.group-experience-list li::before {
  content: "✓";
  position: absolute;
  left: 0.75rem;
  top: 1.9rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--devon-orange);
  line-height: 1;
}

.group-experience-list h3 {
  font-family: var(--font-sans);
  font-size: 0.975rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--navy);
}

.group-experience-list p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.58;
}

.group-experience-visual {
  margin: 0;
  position: relative;
  width: 100%;
  max-width: none;
  aspect-ratio: 4 / 3;
  align-self: start;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 14px 36px rgba(21, 37, 53, 0.1);
  border: 1px solid rgba(21, 37, 53, 0.1);
}

.group-experience-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  display: block;
  filter: saturate(0.95) contrast(1.02);
}

.group-experience-label {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
  background: rgba(15, 28, 42, 0.75);
  backdrop-filter: blur(6px);
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Method */

.method {
  background: var(--surface);
}

.method-tagline {
  position: relative;
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.7vw, 1.9rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.45;
  color: var(--navy);
  margin: clamp(2.75rem, 5vw, 4rem) auto 0;
  padding: 1.75rem 1rem 0;
  max-width: 54rem;
  text-align: center;
}

.method-tagline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 3.25rem;
  height: 2px;
  border-radius: 999px;
  background: var(--devon-orange);
  transform: translateX(-50%);
}

.method-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.card {
  padding: 1.75rem 0 0;
  background: transparent;
  border: none;
  border-top: 2px solid var(--border);
}

.card h3 {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Groups */

.groups {
  background: var(--white);
}

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

.group-card {
  padding: 2rem 1.75rem;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: box-shadow 0.25s, transform 0.25s;
}

.group-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.group-card--featured {
  background: var(--white);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.group-level {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--devon-blue);
  margin-bottom: 0.875rem;
}

.group-card h3 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.625rem;
}

.group-card > p:not(.group-note) {
  font-size: 0.9375rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.group-note {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--navy);
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* Founder */

.founder {
  background: var(--surface-warm);
}

.founder-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4.5rem;
  align-items: center;
}

.founder-content p {
  font-size: 1.025rem;
  color: var(--charcoal);
  margin-bottom: 1.125rem;
  max-width: 36rem;
  line-height: 1.75;
}

.founder-greeting {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 1rem !important;
}

.credibility-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.credibility-list li {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--navy);
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--devon-orange);
}

.founder-photo-wrap {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.founder-photo-wrap img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 20%;
}

/* Pricing */

.pricing {
  background: var(--white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  max-width: 720px;
  margin: 0 auto;
}

.pricing-card {
  padding: 2.25rem 2rem;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.pricing-card--featured {
  background: var(--white);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.pricing-card h3 {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.pricing-amount {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.pricing-amount span {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
}

.pricing-hourly {
  margin-top: 0.45rem;
  color: var(--devon-orange);
  font-size: 0.95rem;
  font-weight: 700;
}

.pricing-features {
  margin-bottom: 1.75rem;
}

.pricing-features li {
  font-size: 0.9375rem;
  color: var(--muted);
  padding: 0.4rem 0;
  padding-left: 1rem;
  position: relative;
}

.pricing-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--devon-orange);
}

.pricing-note {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.875rem;
  color: var(--muted);
}

/* Form */

.form-section {
  background: var(--surface);
}

.form-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: start;
}

.level-form {
  padding: 2.25rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.form-row {
  margin-bottom: 1.25rem;
}

.form-row label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 0.4rem;
}

.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--charcoal);
  background: var(--ivory);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--devon-blue);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.1);
  background: var(--white);
}

.form-row textarea {
  resize: vertical;
  min-height: 100px;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.radio-group label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--charcoal);
  padding: 0.45rem 0.75rem;
  background: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.radio-group label:has(input:checked) {
  border-color: var(--devon-blue);
  background: rgba(43, 108, 176, 0.05);
  color: var(--navy);
}

.radio-group input {
  accent-color: var(--devon-blue);
}

.form-success {
  margin-top: 1rem;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  color: var(--navy);
  background: rgba(43, 108, 176, 0.06);
  border: 1px solid rgba(43, 108, 176, 0.15);
  border-radius: 6px;
}

/* FAQ */

.faq {
  padding-top: 4rem;
  background: var(--white);
}

.faq-list {
  max-width: 40rem;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item summary {
  padding: 1.25rem 0;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--devon-blue);
  flex-shrink: 0;
}

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

.faq-item p {
  padding-bottom: 1.25rem;
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.65;
}

/* Individual lessons */

.individual-offer {
  padding: 4.25rem 0;
  background: var(--surface-academic);
}

.individual-offer-inner {
  display: grid;
  max-width: 920px;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3rem;
  align-items: center;
}

.individual-offer-copy h2 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.65rem, 2.7vw, 2.15rem);
  letter-spacing: -0.015em;
}

.individual-offer-copy > p:last-child {
  max-width: 620px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.individual-offer-cta {
  min-width: 275px;
  text-align: center;
}

/* Final CTA */

.final-cta {
  padding: 5.5rem 0 6rem;
  background: var(--surface-warm);
}

.final-cta-inner {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto;
}

.final-cta-inner h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  margin-bottom: 0.875rem;
  letter-spacing: -0.015em;
}

.final-cta-inner p {
  color: var(--muted);
  margin-bottom: 1.75rem;
  font-size: 1.0625rem;
  line-height: 1.65;
}

/* Footer */

.site-footer {
  padding: 3.5rem 0 2.75rem;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  display: grid;
  gap: 1.75rem;
  text-align: center;
}

.footer-brand img {
  height: 44px;
  width: auto;
  margin: 0 auto 0.875rem;
  filter: brightness(0) invert(1);
  opacity: 0.92;
}

.footer-brand p {
  font-size: 0.875rem;
  max-width: 28rem;
  margin: 0 auto;
  line-height: 1.6;
}

.footer-founder {
  margin-top: 0.375rem !important;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.8125rem !important;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.footer-contact a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s;
}

.footer-contact a:hover {
  color: var(--white);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
  color: rgba(255, 255, 255, 0.85);
}

.footer-copy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.38);
}

/* Responsive */

@media (max-width: 960px) {
  .founder-grid,
  .group-experience-grid,
  .form-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .founder-photo-wrap {
    max-width: 400px;
    margin-inline: auto;
    order: -1;
  }

  .group-experience-visual {
    width: 100%;
    max-width: 720px;
    margin-inline: auto;
    margin-right: auto;
  }

  .group-experience-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .group-experience-list li:nth-child(2) {
    border-right: 0;
  }

  .group-experience-list li:nth-child(-n + 2) {
    border-bottom: 1px solid var(--border);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 1.5rem;
  }

  .method-cards,
  .groups-grid {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.25rem 1.5rem;
    background: rgba(253, 252, 250, 0.98);
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a:not(.btn) {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav .btn-header {
    margin-top: 0.75rem;
    width: 100%;
  }

  .hero-split {
    grid-template-columns: 1fr;
  }

  .hero-classroom {
    min-height: 340px;
    order: -1;
  }

  .hero-classroom img {
    object-position: 100% 22%;
    transform: scale(1.04) translateX(-1%);
  }

  .hero-panel {
    padding: 2.5rem 1.75rem 3rem;
  }

  .hero-panel-inner {
    max-width: none;
    transform: translateY(0.5rem);
  }

  .hero-panel h1 {
    max-width: none;
  }

  .hero-subhead--panel {
    max-width: none;
  }

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

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

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

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

  .section {
    padding: 5rem 0;
  }
}

@media (max-width: 480px) {
  .group-experience-list {
    grid-template-columns: 1fr;
  }

  .group-experience-list li,
  .group-experience-list li:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .group-experience-list li:last-child {
    border-bottom: 0;
  }

  .site-header .header-inner {
    padding-inline: 1rem 1.25rem;
  }

  .personal-logo {
    gap: 0.5rem;
  }

  .personal-logo__mark {
    width: 38px;
    height: auto;
  }

  .personal-logo__name {
    font-size: 0.84rem;
    letter-spacing: 0.2em;
  }

  .personal-logo__subtitle {
    gap: 0.35rem;
    font-size: 0.5rem;
    letter-spacing: 0.13em;
  }

  .level-form {
    padding: 1.5rem;
  }

  .radio-group {
    flex-direction: column;
  }

  .radio-group label {
    width: 100%;
  }

  .hero-panel {
    padding: 1.75rem 1.5rem 2rem;
  }

  .hero-classroom {
    min-height: 280px;
  }
}

/* Campaign landing page refinements */
.section-kicker {
  margin: 0 0 0.65rem;
  color: var(--devon-orange);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-kicker--light {
  color: #f5a24d;
}

.section-lead--center {
  max-width: 640px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.schedules-section {
  padding-bottom: 5rem;
  background: #f6f8fa;
}

.schedules-section .section-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin: 0 auto 1rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  color: var(--white);
  background: var(--devon-orange);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  box-shadow: 0 6px 16px rgba(198, 101, 13, 0.18);
}

.schedule-card {
  display: flex;
  min-height: 340px;
  flex-direction: column;
}

.schedule-card > p:not(.group-level):not(.group-note) {
  margin-bottom: 0.35rem;
  color: var(--charcoal);
  font-weight: 500;
}

.schedule-time {
  margin: 0.15rem 0 1rem !important;
  color: var(--navy) !important;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600 !important;
  line-height: 1.15;
}

.schedule-time--secondary {
  margin-top: 0 !important;
  font-family: var(--font-sans);
  font-size: 1.15rem;
}

.schedule-card .group-note {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.schedule-note {
  max-width: 760px;
  margin: 2rem auto 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
  text-align: center;
}

.pricing-grid--single {
  max-width: 620px;
  grid-template-columns: 1fr;
}

.pricing-grid--single .pricing-card {
  display: block;
  padding: clamp(2rem, 5vw, 3.5rem);
}

.pricing-grid--single .pricing-summary {
  text-align: center;
}

.pricing-grid--single .pricing-summary .pricing-amount {
  margin-bottom: 0;
}

.pricing-grid--single .pricing-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 2rem;
  max-width: 500px;
  margin: 2rem auto 0;
}

.pricing-grid--single .btn {
  margin-top: 1.5rem;
}

.pricing-trial {
  position: relative;
  display: flex;
  max-width: 500px;
  margin: 2.5rem auto 0;
  padding: 1.75rem 1.5rem 1.35rem;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  border: 0;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(135deg, #fffdfb 0%, #fff5e9 100%);
  box-shadow: 0 10px 28px rgba(24, 39, 55, 0.09);
  text-align: center;
}

.pricing-trial strong {
  color: var(--navy);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  line-height: 1.3;
}

.pricing-trial-badge {
  position: absolute;
  top: 0;
  left: 50%;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: var(--orange);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.pricing-trial-copy {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.contact-cta .final-cta-inner {
  display: flex;
  max-width: 790px;
  flex-direction: column;
  align-items: center;
}

.contact-whatsapp {
  min-width: min(100%, 350px);
}

.contact-email {
  display: inline-flex;
  min-width: min(100%, 320px);
  min-height: 52px;
  margin-top: 0.9rem;
  padding: 0.75rem 1.2rem;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.45);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  text-align: center;
  transition: background 160ms ease, border-color 160ms ease;
}

.contact-email:hover {
  border-color: rgba(21, 37, 53, 0.25);
  background: var(--white);
}

@media (max-width: 768px) {
  .schedule-card {
    min-height: 0;
  }

  .schedule-grid {
    gap: 1rem;
  }

  .pricing-grid--single .pricing-card {
    padding: 1.75rem;
  }

  .pricing-grid--single .pricing-features {
    grid-template-columns: 1fr;
    margin-top: 1.75rem;
  }

  .pricing-grid--single .btn {
    margin-top: 2rem;
  }

  .individual-offer {
    padding: 3.5rem 0;
  }

  .individual-offer-inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .individual-offer-cta {
    width: 100%;
    min-width: 0;
  }
}