/* ============================================================
   GLOBAL RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color Palette */
  --color-bg:         #FAF6F1;       /* warm ivory */
  --color-bg-alt:     #F0E8DF;       /* blush parchment */
  --color-bg-dark:    #EDE0D3;       /* deeper blush */
  --color-primary:    #B07D5E;       /* terracotta / copper */
  --color-primary-dk: #8C5E42;       /* deep terracotta */
  --color-secondary:  #7A9980;       /* sage green */
  --color-secondary-dk:#5C7A63;      /* deep sage */
  --color-gold:       #C9A55A;       /* soft gold */
  --color-text:       #3A2E28;       /* deep warm brown */
  --color-text-mid:   #6B5B52;       /* medium warm brown */
  --color-text-light: #A0897E;       /* muted rose-brown */
  --color-white:      #FEFCFA;       /* warm white */
  --color-border:     #DDD0C4;       /* warm border */
  --color-overlay:    rgba(58,46,40,0.55);

  /* Typography */
  --font-heading: 'Cormorant Garamond', 'Georgia', serif;
  --font-body:    'Nunito', 'Segoe UI', sans-serif;

  /* Spacing scale */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  7rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(176,125,94,0.12);
  --shadow-md: 0 6px 24px rgba(176,125,94,0.16);
  --shadow-lg: 0 12px 48px rgba(176,125,94,0.18);

  /* Transitions */
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary-dk); }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.6rem, 5vw, 4.2rem); font-weight: 400; }
h2 { font-size: clamp(1.9rem, 3.5vw, 2.8rem); font-weight: 500; }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 500; }
h4 { font-size: 1.2rem; font-weight: 600; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.2rem;
  color: var(--color-text-mid);
  line-height: 1.9;
}

.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

.section {
  padding-block: var(--space-lg);
}

.section--alt { background-color: var(--color-bg-alt); }
.section--dark { background-color: var(--color-bg-dark); }

.text-center { text-align: center; }
.text-right  { text-align: right; }

.divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  margin-block: var(--space-sm);
}
.divider--center { margin-inline: auto; }

/* Grid helpers */
.grid { display: grid; gap: var(--space-md); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background-color: var(--color-primary-dk);
  border-color: var(--color-primary-dk);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--ghost {
  background: rgba(255,255,255,0.18);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.55);
  backdrop-filter: blur(4px);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.32);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.8rem;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(250, 246, 241, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.nav__logo span {
  display: block;
  font-size: 0.65rem;
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  align-items: center;
}

.nav__links a {
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-mid);
  position: relative;
  padding-bottom: 3px;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  transition: width var(--transition);
  border-radius: 2px;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-primary);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

.nav__links .btn {
  padding: 0.5rem 1.4rem;
  font-size: 0.82rem;
}
.nav__links .btn::after { display: none; }

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;            /* offset fixed nav */
}

/* Option A: image background */
.hero--image {
  background: var(--color-overlay);
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  /* Replace with your hero image:
     background-image: url('../images/hero.jpg'); */
  background-color: var(--color-bg-dark);
  background-size: cover;
  background-position: center;
  filter: brightness(0.88);
}

/* Option B: gradient (default / no image) */
.hero--gradient {
  background: linear-gradient(
    135deg,
    var(--color-bg-dark) 0%,
    #E8D9CC 40%,
    #D6C4B8 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
  padding: var(--space-lg) var(--space-md);
}

.hero__title {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--color-text-mid);
  margin-bottom: var(--space-md);
  line-height: 1.85;
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Decorative ornament */
.ornament {
  display: block;
  text-align: center;
  color: var(--color-gold);
  font-size: 1.6rem;
  letter-spacing: 0.25em;
  margin-block: var(--space-sm);
  opacity: 0.7;
  user-select: none;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card__image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  background-color: var(--color-bg-dark);
}

/* Placeholder image block (swap for real <img> later) */
.img-placeholder {
  background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-alt));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card__body {
  padding: var(--space-md);
}

.card__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

/* ============================================================
   OFFERING CARDS (icon + text style)
   ============================================================ */
.offering-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-md) calc(var(--space-md) * 1.2);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}
.offering-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-gold));
  border-radius: 4px 0 0 4px;
  opacity: 0;
  transition: opacity var(--transition);
}
.offering-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.offering-card:hover::before { opacity: 1; }

.offering-card__icon {
  font-size: 2.2rem;
  margin-bottom: var(--space-xs);
  display: block;
}

.offering-card__title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.offering-card__desc {
  color: var(--color-text-mid);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

/* ============================================================
   TESTIMONIAL / QUOTE BLOCK
   ============================================================ */
.quote-block {
  border-left: 3px solid var(--color-gold);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-block: var(--space-md);
}
.quote-block p {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-mid);
  line-height: 1.7;
}
.quote-block cite {
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-style: normal;
  margin-top: 0.5rem;
  display: block;
}

/* ============================================================
   DOWNLOAD / DOCUMENT LINKS
   ============================================================ */
.doc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-text-mid);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  margin: 0.3rem;
}
.doc-link svg { flex-shrink: 0; color: var(--color-primary); }
.doc-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.form {
  display: grid;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mid);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-light);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(176,125,94,0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form__notice {
  font-size: 0.8rem;
  color: var(--color-text-light);
  text-align: center;
}

/* ============================================================
   GALLERY GRID
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.2rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 1;
  cursor: pointer;
  background: var(--color-bg-dark);
}

.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover .gallery-item__overlay { opacity: 1; }
.gallery-item__overlay span {
  color: var(--color-white);
  font-size: 1.8rem;
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  padding-top: calc(72px + var(--space-lg));
  padding-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-alt) 100%);
  text-align: center;
}

.page-hero__eyebrow {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

/* ============================================================
   SIDEBAR LAYOUT (about page)
   ============================================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--space-lg);
  align-items: start;
}
.two-col--reversed { direction: rtl; }
.two-col--reversed > * { direction: ltr; }

.portrait {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 3/4;
  background: var(--color-bg-dark);
}
.portrait img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* ============================================================
   TAG / BADGE
   ============================================================ */
.tag {
  display: inline-block;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.tag--primary { background: rgba(176,125,94,0.12); color: var(--color-primary-dk); }
.tag--sage    { background: rgba(122,153,128,0.12); color: var(--color-secondary-dk); }
.tag--gold    { background: rgba(201,165,90,0.14);  color: #8C6B1F; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.65);
  padding-block: var(--space-lg) var(--space-md);
  margin-top: auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}
.footer__brand span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-top: 2px;
}

.footer__tagline {
  font-size: 0.88rem;
  line-height: 1.75;
}

.footer__col h4 {
  color: var(--color-white);
  font-size: 0.75rem;
  font-family: var(--font-body);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer__col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer__col ul a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__col ul a:hover { color: var(--color-gold); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer__bottom a {
  color: rgba(255,255,255,0.5);
}
.footer__bottom a:hover { color: var(--color-gold); }

/* ============================================================
   UTILITY: SECTION INTRO
   ============================================================ */
.section-intro {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: var(--space-lg);
}
.section-intro h2 { margin-bottom: var(--space-xs); }
.section-intro .divider { margin-block: var(--space-xs); }

/* ============================================================
   LIGHTBOX (gallery)
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(20,14,10,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.lightbox.open {
  opacity: 1;
  pointer-events: all;
}
.lightbox__img {
  max-width: 90vw;
  max-height: 88vh;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 80px rgba(0,0,0,0.6);
  object-fit: contain;
}
.lightbox__close {
  position: absolute;
  top: 1.5rem; right: 2rem;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.75;
  transition: opacity var(--transition);
}
.lightbox__close:hover { opacity: 1; }

/* ============================================================
   NOTIFICATION / ALERT
   ============================================================ */
.alert {
  padding: 1rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  display: none;
}
.alert--success {
  background: rgba(122,153,128,0.15);
  border: 1px solid var(--color-secondary);
  color: var(--color-secondary-dk);
}
.alert--error {
  background: rgba(176,80,80,0.1);
  border: 1px solid #c47070;
  color: #8c3c3c;
}
.alert.show { display: block; }

/* ============================================================
   CARD ACCENT — visual rhythm marker, replaces icon
   ============================================================ */
.offering-card__accent {
  display: block;
  width: 36px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  border-radius: 2px;
  margin-bottom: var(--space-sm);
}

/* ============================================================
   NATURE BAND — wide image strip between sections
   ============================================================ */
.nature-band {
  width: 100%;
  overflow: hidden;
  line-height: 0;            /* remove inline gap below image */
}

.nature-band__image {
  width: 100%;
  aspect-ratio: 21/9;
  object-fit: cover;
  display: block;
  /* Default gradient fill until a real photo is placed */
  background: linear-gradient(
    160deg,
    #B8CCAF 0%,
    #94B89A 25%,
    #C4B89A 55%,
    #D8C8AF 80%,
    #E8D8C4 100%
  );
}

.nature-band__image--portrait {
  aspect-ratio: 16/9;
}

.nature-band__caption {
  text-align: center;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-light);
  padding: 0.65rem 0 0;
  line-height: 1.4;
}

/* Nature image inside two-col or standalone block */
.nature-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: linear-gradient(
    135deg,
    #B8CCAF 0%,
    #94B89A 40%,
    #D4C4A8 100%
  );
}

.nature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Research page: publication list */
.pub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.pub-item {
  padding: 1.25rem var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.pub-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.pub-item__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.3rem;
}

.pub-item__meta {
  font-size: 0.82rem;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.pub-item__desc {
  font-size: 0.92rem;
  color: var(--color-text-mid);
  line-height: 1.75;
  margin: 0;
}

/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .two-col {
    grid-template-columns: 1fr;
  }
  .two-col--reversed { direction: ltr; }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__grid > :first-child {
    grid-column: 1 / -1;
  }

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

@media (max-width: 640px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 4rem;
  }

  .nav__links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links li { width: 100%; text-align: center; }
  .nav__links a {
    display: block;
    padding: 1rem;
    text-align: center;
    font-size: 0.92rem;
  }
  .nav__links a::after { display: none; }
  .nav__links .btn { margin: 0.75rem 1.5rem 1rem; width: calc(100% - 3rem); justify-content: center; }

  .nav__toggle { display: flex; }

  .hero__content { padding-inline: var(--space-sm); }

  .footer__grid {
    grid-template-columns: 1fr;
  }
  .footer__bottom { flex-direction: column; text-align: center; }
}