/* ============================================================
   SWORD GYM — tasarım sistemi
   Palet: soğuk kırık beyaz zemin, çelik grisi, temperli kırmızı
   İmza: pahlı (kesik) köşeler — bıçak ağzı motifi
   ============================================================ */

:root {
  --bg: #f7f8f7;
  --surface: #ffffff;
  --ink: #14171a;
  --ink-soft: #2a2f34;
  --steel: #5c6670;
  --line: #e2e5e7;
  --accent: #c21f30;
  --accent-dark: #9d1626;

  --font-display: "Archivo", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", Consolas, monospace;

  --cut: 16px;            /* pahlı köşe boyutu */
  --container: 1120px;
  --section-gap: clamp(72px, 10vw, 128px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

/* ---------- Tipografi ---------- */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.display {
  font-size: clamp(2.75rem, 7.5vw, 5.25rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.03em;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
  transform: skewX(-30deg);
}

.lead {
  color: var(--steel);
  font-size: clamp(1.02rem, 1.6vw, 1.15rem);
  max-width: 56ch;
}

/* ---------- Pahlı köşe (imza öğesi) ---------- */

.cut-corner {
  clip-path: polygon(
    0 0,
    calc(100% - var(--cut)) 0,
    100% var(--cut),
    100% 100%,
    0 100%
  );
}

/* ---------- Butonlar ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 16px 34px;
  cursor: pointer;
  border: none;
  transition: background-color 0.2s ease, color 0.2s ease,
              transform 0.15s ease, box-shadow 0.2s ease;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent);
  box-shadow: 0 10px 24px rgba(194, 31, 48, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: #fff;
  box-shadow: inset 0 0 0 1.5px var(--ink), 0 10px 24px rgba(20, 23, 26, 0.2);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  box-shadow: 0 10px 24px rgba(194, 31, 48, 0.32);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 247, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  margin-left: -12px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.site-header .logo:hover {
  background: var(--ink);
  color: #fff;
}

.logo .blade {
  width: 18px;
  height: 18px;
  background: var(--accent);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-links a:not(.btn) {
  padding: 8px 12px;
}

.nav-links a:not(.btn):hover {
  background: var(--ink);
  color: #fff;
}

.nav-links .btn { padding: 10px 20px; font-size: 0.82rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 8px;
  width: 24px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle span { top: 19px; }
.nav-toggle span::before { top: -7px; left: 0; }
.nav-toggle span::after { top: 7px; left: 0; }

.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: clamp(84px, 12vw, 150px) 0 var(--section-gap);
  overflow: hidden;
}

.hero-slash {
  position: absolute;
  top: 0;
  right: -12vw;
  width: 46vw;
  height: 100%;
  background: linear-gradient(160deg, #eceeee 0%, #dfe3e4 45%, #d3d8da 100%);
  transform: skewX(-14deg);
  border-left: 2px solid var(--accent);
  z-index: -1;
  overflow: hidden;
}

/* Şerit eğik olduğu için fotoğraf ters yönde eğilerek düzeltilir */
.hero-foto {
  position: absolute;
  top: 0;
  left: -18%;
  width: 140%;
  height: 100%;
  object-fit: cover;
  transform: skewX(14deg);
  filter: grayscale(30%) contrast(1.02);
}

/* Fotoğrafın üstüne hafif perde — metin tarafına doğru açılır */
.hero-slash::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(247, 248, 247, 0.5) 0%, rgba(247, 248, 247, 0.08) 45%, rgba(20, 23, 26, 0.18) 100%);
}

.hero .display { max-width: 12ch; }
.hero .display .accent { color: var(--accent); }

.hero .lead { margin: 26px 0 38px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-note {
  margin-top: 44px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--steel);
  letter-spacing: 0.08em;
}

/* Hizmet saatleri — belirgin */
.hero-hours {
  margin-top: 44px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  border-left: 3px solid var(--accent);
  padding: 6px 0 6px 18px;
}

.hero-hours .hh-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
}

.hero-hours .hh-time {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.7rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* ---------- Bölüm iskeleti ---------- */

.section { padding: var(--section-gap) 0; }

/* Yapışkan menü payı — çapa linkleri başlığı menünün altına sokmasın */
[id] { scroll-margin-top: 84px; }

.section-head { margin-bottom: clamp(36px, 5vw, 56px); }
.section-head .lead { margin-top: 14px; }

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ---------- Program kartları ---------- */

.program-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.program-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 30px 26px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.section-alt .program-card { background: var(--bg); }

.program-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.program-card .icon {
  width: 42px;
  height: 42px;
  color: var(--accent);
  margin-bottom: 20px;
}

.program-card h3 {
  font-size: 1.15rem;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.program-card p {
  color: var(--steel);
  font-size: 0.94rem;
}

.program-card .more {
  display: inline-block;
  margin-top: 16px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Ders programı tablosu ---------- */

.schedule-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--surface);
}

.schedule {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.schedule th,
.schedule td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.schedule th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--steel);
  border-bottom: 2px solid var(--ink);
}

.schedule td:first-child {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  white-space: nowrap;
}

.schedule tr:last-child td { border-bottom: none; }

.schedule .off { color: #b9bfc4; }

/* ---------- Üyelik / fiyat kartları ---------- */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}

.price-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 34px 26px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.price-card:hover {
  transform: translateY(-8px) scale(1.03);
  border-color: var(--accent);
  box-shadow: 0 20px 44px rgba(20, 23, 26, 0.14);
}

.price-card.featured:hover {
  box-shadow: 0 20px 48px rgba(194, 31, 48, 0.35);
}

.price-card .plan {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 16px;
}

.price-card .price {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 2.15rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.price-card .per {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--steel);
  margin: 8px 0 26px;
}

.price-card ul {
  list-style: none;
  margin-bottom: 32px;
  flex: 1;
}

.price-card li {
  font-size: 0.93rem;
  padding: 9px 0 9px 26px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.price-card li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 17px;
  width: 12px;
  height: 2px;
  background: var(--accent);
  transform: skewX(-30deg);
}

.price-card .btn { text-align: center; }

.price-card.featured {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  position: relative;
}

.price-card.featured .plan { color: #aab2b9; }
.price-card.featured .per { color: #aab2b9; }
.price-card.featured li { border-bottom-color: #2e343a; }

.featured-tag {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 7px 14px;
  clip-path: polygon(12px 0, 100% 0, 100% 100%, 0 100%);
}

.pricing-note {
  margin-top: 22px;
  font-size: 0.85rem;
  color: var(--steel);
}

/* ---------- Makale kartları ---------- */

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.article-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.article-card .thumb {
  width: calc(100% + 52px);
  height: 150px;
  object-fit: cover;
  margin: -30px -26px 20px;
  display: block;
}

.article-card .meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 14px;
}

.article-card h3 {
  font-size: 1.12rem;
  margin-bottom: 12px;
  line-height: 1.25;
}

.article-card p {
  color: var(--steel);
  font-size: 0.93rem;
  flex: 1;
}

.article-card .more {
  margin-top: 20px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.section-cta { margin-top: 40px; text-align: center; }

/* ---------- Makale sayfası ---------- */

.article-page {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 96px) clamp(20px, 4vw, 40px);
}

.article-page .eyebrow { margin-bottom: 14px; }

.article-page h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  margin-bottom: 14px;
}

.article-page .article-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--steel);
  letter-spacing: 0.08em;
  margin-bottom: 40px;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--ink);
}

.article-page h2 {
  font-size: 1.35rem;
  margin: 40px 0 14px;
}

.article-page p { margin-bottom: 18px; color: var(--ink-soft); }

.article-page ul,
.article-page ol {
  margin: 0 0 18px 22px;
  color: var(--ink-soft);
}
.article-page li { margin-bottom: 8px; }

.article-page .detay-foto {
  width: 100%;
  height: clamp(220px, 36vw, 400px);
  object-fit: cover;
  margin: 6px 0 36px;
}

.article-page .detay-cta {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.article-page .detay-cta .back-link { margin-top: 0; }

.article-page .refs {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.article-page .refs h2 { font-size: 1rem; margin-top: 0; }

.article-page .refs ol {
  font-size: 0.84rem;
  color: var(--steel);
}

.back-link {
  display: inline-block;
  margin-top: 40px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

/* ---------- SSS (FAQ) ---------- */

.faq-list { max-width: 820px; }

.faq {
  background: var(--surface);
  border: 1px solid var(--line);
  margin-bottom: 10px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-weight: 700;
  font-size: 1rem;
}

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

.faq summary::after {
  content: "+";
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq[open] summary::after { transform: rotate(45deg); }

.faq[open] summary { color: var(--accent); }

.faq .faq-cevap {
  padding: 0 22px 20px;
  color: var(--steel);
  max-width: 70ch;
}

.faq .faq-cevap a { color: var(--accent); font-weight: 600; }

/* ---------- İlgili içerikler ---------- */

.related {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.related h2 { font-size: 1rem; margin: 0 0 12px; }

.related ul {
  list-style: none;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.related a { color: var(--accent); font-weight: 700; }
.related a:hover { text-decoration: underline; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: #c8cdd2;
  padding: clamp(56px, 8vw, 88px) 0 36px;
  transition: background-color 0.5s ease;
}

/* İletişim linkine tıklanınca kısa süreli vurgu */
.site-footer.vurgu { background: #47131b; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 56px;
}

.site-footer .logo { color: #fff; margin-bottom: 16px; }

.site-footer p { font-size: 0.92rem; }

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #8a939c;
  margin-bottom: 18px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; font-size: 0.92rem; }
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid #2e343a;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #8a939c;
  letter-spacing: 0.06em;
}

/* ---------- Hesaplayıcı tanıtım bandı (ana sayfa) ---------- */

.calc-band {
  background: var(--ink);
  color: #fff;
}

.calc-band .lead { color: #aab2b9; }

/* Koyu bant içinde sekmeler */
.calc-band .calc-tab {
  background: transparent;
  border-color: #3a4148;
  color: #c8cdd2;
}

.calc-band .calc-tab:hover { border-color: var(--accent); color: #fff; }

.calc-band .calc-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.calc-band .calc-panel { border-color: transparent; }

/* ---------- Hesaplayıcılar sayfası ---------- */

.calc-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
  align-items: start;
}

.calc-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: sticky;
  top: 92px;
}

.calc-tab {
  text-align: left;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.calc-tab:hover { border-color: var(--accent); }

.calc-tab.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.calc-panel {
  display: none;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: clamp(26px, 4vw, 40px);
  color: var(--ink);
}

.calc-panel.active { display: block; }

.calc-panel h2 {
  font-size: 1.35rem;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.calc-desc {
  color: var(--steel);
  font-size: 0.95rem;
  margin-bottom: 28px;
  max-width: 60ch;
}

.calc-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
  margin-bottom: 22px;
}

.calc-form .full { grid-column: 1 / -1; }

.field { display: flex; flex-direction: column; gap: 7px; }

.field > label,
.field > .field-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.field input,
.field select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 0;
  width: 100%;
}

.field input:focus,
.field select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.radio-row {
  display: flex;
  gap: 22px;
  padding: 12px 0;
}

.radio-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}

.radio-row input { accent-color: var(--accent); }

.result {
  display: none;
  background: var(--ink);
  color: #fff;
  padding: 24px 28px;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.result.show { display: block; }

.result .num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.result .unit {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #aab2b9;
  margin-left: 6px;
}

.result p {
  color: #aab2b9;
  font-size: 0.88rem;
  margin-top: 10px;
}

.result strong { color: #fff; }

.calc-note {
  margin-top: 18px;
  font-size: 0.82rem;
  color: var(--steel);
  max-width: 65ch;
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
}

.reveal.visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.55s ease, transform 0.55s ease;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .reveal.visible { transition: none; }
  .program-card:hover,
  .article-card:hover { transform: none; }
  .btn:hover, .btn:active { transform: none; }
  .price-card:hover { transform: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .program-grid,
  .pricing-grid,
  .article-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-slash { width: 46vw; right: -26vw; }

  .calc-layout { grid-template-columns: 1fr; }
  .calc-tabs {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .calc-tab { flex: 1 1 auto; }

  .nav-toggle { display: block; }

  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px clamp(20px, 4vw, 40px) 28px;
    gap: 18px;
    display: none;
  }

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

@media (max-width: 640px) {
  .program-grid,
  .pricing-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

  .hero-slash { display: none; }
  .calc-form { grid-template-columns: 1fr; }
}