/* ---------- Design tokens ---------- */
:root {
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-sans: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;

  --color-bg: #060606;        /* near-black */
  --color-bg-alt: #0E0E0C;    /* slightly lifted, for alternating sections */
  --color-card: #0B0B09;
  --color-ink: #F6F4EE;       /* soft white */
  --color-ink-soft: #B9B6AC;  /* muted white for secondary text */
  --color-line: rgba(246, 244, 238, 0.18);
  --color-line-strong: rgba(246, 244, 238, 0.35);
}

/* ---------- Reset & base ---------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

section {
  scroll-margin-top: 90px; /* clears the fixed header when jumped to */
}

.section-inner {
  padding: 110px 24px;
  max-width: 980px;
  margin: 0 auto;
}

.section-label {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 14px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: 56px;
}

.section-index {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  color: var(--color-ink-soft);
  letter-spacing: 0.05em;
}

/* alternating warmth between sections for scroll rhythm */
.purpose,
.courses,
.contact { background: var(--color-bg); }

.bio,
.book { background: var(--color-bg-alt); }

/* ---------- Sticky header ---------- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
  z-index: 100;
}

.nav-dropdown {
  position: relative;
}

.nav-trigger {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 0;
}

.nav-menu {
  position: absolute;
  top: 100%;
  left: 0;
  display: none;
  flex-direction: column;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  min-width: 190px;
  padding: 6px 0;
}

.nav-dropdown:hover .nav-menu,
.nav-dropdown:focus-within .nav-menu {
  display: flex;
}

.nav-menu a {
  color: var(--color-ink);
  text-decoration: none;
  padding: 11px 18px;
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-menu a:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

.book-now-btn {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-ink);
  padding: 11px 22px;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.book-now-btn:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 130px 28px 56px;
}

.hero-grid {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 96px;
}

.hero-headline h1 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(3.2rem, 10vw, 8rem);
  line-height: 0.94;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.hero-headline .word {
  display: inline;
}

@media (min-width: 861px) {
  .hero-headline .word {
    display: block;
  }
  .hero-headline .mobile-break {
    display: none;
  }
}

.hero-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  align-items: start;
}

.hero-link {
  color: var(--color-ink);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-line-strong);
  padding-bottom: 4px;
  width: fit-content;
}

.hero-link:hover {
  color: var(--color-ink-soft);
}

.hero-mail-label {
  display: block;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink);
  text-decoration: none;
  margin-bottom: 14px;
  width: fit-content;
}

.hero-mail-label:hover {
  color: var(--color-ink-soft);
}

.mail-form {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-line-strong);
  max-width: 380px;
}

.mail-form input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  padding: 13px 14px;
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.mail-form input::placeholder {
  color: var(--color-ink-soft);
}

.mail-form input:focus {
  outline: none;
}

.mail-form button {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-ink);
  padding: 0 22px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.mail-form button:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

@media (max-width: 860px) {
  .hero-row {
    grid-template-columns: 1fr;
    gap: 44px;
  }
}

/* ---------- Purpose ---------- */
.purpose .section-inner {
  padding-top: 96px;
}

.purpose p {
  text-align: center;
  font-size: 1.2rem;
  color: var(--color-ink-soft);
  max-width: 700px;
  margin: 0 auto;
}

/* ---------- Courses table ---------- */
.table-wrap {
  overflow-x: auto;
}

.courses-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: transparent;
}

.courses-table th,
.courses-table td {
  border: 1px solid var(--color-line);
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  color: var(--color-ink-soft);
}

.courses-table thead th {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line-strong);
  border-bottom: 2px solid var(--color-ink);
}

.courses-table thead th.row-label {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line-strong);
}

.courses-table th.row-label {
  font-weight: 700;
  white-space: nowrap;
  background: transparent;
  color: var(--color-ink);
}

/* ---------- Exercises list (inside courses table) ---------- */
.table-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.table-list li {
  padding-left: 14px;
  position: relative;
}

.table-list li::before {
  content: "\2013";
  position: absolute;
  left: 0;
  color: var(--color-ink-soft);
}

/* ---------- Bio ---------- */
.bio-content {
  display: flex;
  align-items: center;
  gap: 56px;
}

.bio-photo {
  width: 260px;
  height: 260px;
  object-fit: cover;
  object-position: top center;
  flex-shrink: 0;
  border: 1px solid var(--color-line-strong);
}

.bio-content p {
  font-size: 1.05rem;
  color: var(--color-ink-soft);
}

/* ---------- Book ---------- */
.book-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  max-width: 560px;
  margin: 0 auto;
}

.book-card {
  background: var(--color-bg);
  padding: 34px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.book-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: 1.4rem;
  color: var(--color-ink);
}

.book-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-bg);
  background: var(--color-ink);
  display: inline-block;
  padding: 4px 9px;
  width: fit-content;
}

.book-desc {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

.book-price {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.price-strike {
  text-decoration: line-through;
  opacity: 0.55;
  font-size: 1rem;
  color: var(--color-ink-soft);
}

.price-now {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.9rem;
  color: var(--color-ink);
}

.price-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-ink);
  border: 1px solid var(--color-line-strong);
  padding: 2px 9px;
}

.book-btn {
  margin-top: auto;
  align-self: flex-start;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.88rem;
  color: var(--color-bg);
  background: var(--color-ink);
  border: 1px solid var(--color-ink);
  padding: 13px 22px;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.book-btn:hover {
  background: transparent;
  color: var(--color-ink);
}

.book-btn-outline {
  color: var(--color-ink);
  background: transparent;
}

.book-btn-outline:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

/* ---------- Contact ---------- */
.contact .section-inner {
  text-align: center;
  padding-bottom: 170px;
}

.email-link {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: lowercase;
  letter-spacing: 0.02em;
  font-size: 1.7rem;
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-line-strong);
  text-underline-offset: 6px;
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .section-inner {
    padding: 80px 20px;
  }
  .exercises-grid {
    grid-template-columns: 1fr;
  }
  .bio-content {
    flex-direction: column;
    text-align: center;
  }
  .book-grid {
    grid-template-columns: 1fr;
  }
}