/* ============================================
   KORYFI MINE — Design System
   Two-tone: Charcoal #171717 + Forest Green #155E3A
   Fonts: Poppins (headings) · Open Sans (body)
   ============================================ */

:root {
  --color-primary:     #171717;
  --color-secondary:   #404040;
  --color-accent:      #155E3A;
  --color-accent-hover:#0F4D2E;
  --color-background:  #FFFFFF;
  --color-foreground:  #171717;
  --color-muted:       #F4F4F5;
  --color-border:      #E5E5E5;
  --color-surface:     #FAFAFA;

  --font-heading: 'Poppins', sans-serif;
  --font-body:    'Open Sans', sans-serif;

  --radius: 4px;
  --radius-md: 8px;
  --transition: 200ms ease;

  --container: 1200px;
  --navbar-h: 90px;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
select, input, textarea { font-family: inherit; font-size: 1rem; }

/* ---- SKIP LINK ---- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  height: var(--navbar-h);
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-h);
  gap: 24px;
  position: relative;
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-img { height: 52px; width: auto; max-width: 220px; object-fit: contain; }
.logo-img--small { height: 40px; max-width: 180px; object-fit: contain; }
.logo-fallback {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  display: none;
}
.logo-fallback span { color: var(--color-accent); }
.logo-fallback--small { font-size: 0.9rem; }

.navbar__links {
  display: flex;
  gap: 36px;
  align-items: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.navbar__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-secondary);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}
.navbar__links a::after {
  content: '';
  position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-primary);
}
.navbar__links a:hover::after,
.navbar__links a.active::after { width: 100%; }

.navbar__actions { display: flex; align-items: center; gap: 12px; }

.lang-toggle {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 5px 10px;
  transition: border-color var(--transition), color var(--transition);
}
.lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}
.hamburger span {
  display: block; height: 2px; width: 100%;
  background: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
  border-radius: 2px;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
  padding: 16px 24px 20px;
  gap: 4px;
  background: var(--color-background);
}
.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--color-primary); }
.mobile-menu.is-open { display: flex; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 13px 28px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: 48px;
}
.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}
.btn--primary {
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-accent-hover);
}
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn--accent {
  background: var(--color-accent);
  color: #fff;
}
.btn--accent:hover {
  background: var(--color-accent-hover);
}
.btn--full { width: 100%; }

/* Spinner inside button */
.btn__spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.btn.is-loading .btn__text { opacity: 0; }
.btn.is-loading .btn__spinner { display: inline-block; position: absolute; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 88px 0; }
.section--tight-top { padding-top: 48px; }
.section--muted { background: var(--color-muted); }
.section--dark {
  background: var(--color-primary);
  color: #fff;
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-label--light {
  color: rgba(255,255,255,0.5);
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-primary);
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: #fff; }

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: 20px; }
h3 { font-size: 1.125rem; margin-bottom: 8px; }

p { color: var(--color-secondary); margin-bottom: 16px; max-width: 68ch; }
p:last-child { margin-bottom: 0; }
.section--dark p { color: rgba(255,255,255,0.75); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  padding: 100px 0 88px;
  overflow: hidden;
}
.hero__backdrop {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(135deg, var(--color-muted) 0%, var(--color-background) 60%);
  pointer-events: none;
}
.hero__backdrop::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  right: -150px; top: -150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(21,94,58,0.07) 0%, transparent 70%);
}
.hero__inner {
  position: relative; z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 760px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1.5px solid rgba(21,94,58,0.3);
  border-radius: 100px;
  padding: 6px 14px;
  margin-bottom: 28px;
}
.hero__badge::before {
  content: '';
  display: block; width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.hero__title {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-primary);
  line-height: 1.12;
}
.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 60ch;
}
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ============================================
   STATS
   ============================================ */
.stats {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  text-align: center;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 16px;
  border-right: 1px solid var(--color-border);
}
.stat:last-child { border-right: none; }
.stat__number {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}
.stat__label {
  font-size: 0.75rem;
  color: var(--color-secondary);
  letter-spacing: 0.05em;
}

/* ============================================
   ABOUT SNAPSHOT
   ============================================ */
.about-snapshot__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-snapshot__text h2 { margin-top: 4px; }
.about-snapshot__text p { margin-bottom: 20px; }
.about-snapshot__text .btn { margin-top: 8px; }

.about-snapshot__visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.about-snapshot__visual .visual-card:last-child {
  grid-column: auto;
}
.visual-card {
  background: var(--color-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.visual-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.visual-card__icon { color: var(--color-accent); }
.visual-card__label {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* ============================================
   INVEST / DARK SECTION
   ============================================ */
.invest { text-align: center; }
.invest__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  max-width: 680px;
  margin: 0 auto;
  padding: 80px 0;
}
.invest__inner h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }

/* ============================================
   UPDATES PREVIEW
   ============================================ */
.updates-preview .section-label { margin-bottom: 4px; }
.updates-preview h2 { margin-bottom: 40px; }
.updates-preview__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.update-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.update-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 24px rgba(0,0,0,0.07);
}
.update-card__date {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.update-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.update-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-secondary);
  flex: 1;
  max-width: 100%;
}
.link-arrow {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: gap var(--transition), color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.link-arrow:hover { color: var(--color-accent-hover); gap: 8px; }
.updates-preview__footer {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

/* ============================================
   PAGE HERO (inner pages)
   ============================================ */
.page-hero {
  background: var(--color-primary);
  color: #fff;
  padding: 72px 0 60px;
}
.page-hero .section-label { color: rgba(255,255,255,0.45); }
.page-hero h1 { color: #fff; margin-top: 8px; margin-bottom: 12px; }
.page-hero__sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  margin: 0;
  max-width: 100%;
}
.page-hero--grey {
  background: #f0f0f0;
  color: var(--color-primary);
}
.page-hero--grey .section-label { color: rgba(0,0,0,0.4); }
.page-hero--grey h1 { color: var(--color-primary); }
.page-hero--grey .page-hero__sub { color: rgba(0,0,0,0.55); }
.page-hero--green {
  background: var(--color-accent);
}
.page-hero--green .section-label { color: rgba(255,255,255,0.6); }
.page-hero--green h1 { color: #fff; }
.page-hero--green .page-hero__sub { color: rgba(255,255,255,0.75); }

/* ============================================
   TWO COLUMN LAYOUT
   ============================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.project-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.project-map {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.project-map__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.project-map-figure {
  margin: 0;
}
.project-map__caption {
  margin-top: 10px;
  font-size: 0.7rem;
  line-height: 1.5;
  color: var(--color-secondary);
}
.project-map__caption-source {
  display: block;
  margin-top: 4px;
  font-style: italic;
}
.project-map__placeholder {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 100%;
  background: var(--color-muted);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.info-block-group {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.info-block {
  display: flex;
  flex-direction: column;
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border);
}
.info-block:last-child { border-bottom: none; }
.info-block__label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}
.info-block__value {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
}

/* ============================================
   FEATURE GRID
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.feature-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.feature-card__icon {
  color: var(--color-accent);
  margin-bottom: 16px;
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; max-width: 100%; }

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 40px;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 15px; top: 0; bottom: 0;
  width: 2px;
  background: var(--color-border);
}
.timeline__item {
  display: flex;
  gap: 32px;
  padding: 0 0 36px 48px;
  position: relative;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__marker {
  position: absolute;
  left: 7px; top: 4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-background);
  flex-shrink: 0;
  z-index: 1;
}
.timeline__item--done .timeline__marker {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.timeline__item--active .timeline__marker {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.timeline__tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--color-muted);
  color: var(--color-secondary);
  margin-bottom: 8px;
}
.timeline__tag--done {
  background: var(--color-primary);
  color: #fff;
}
.timeline__tag--active {
  background: var(--color-accent);
  color: #fff;
}
.timeline__content h3 { margin-bottom: 8px; }
.timeline__content p { font-size: 0.9rem; max-width: 100%; }

/* ============================================
   UPDATES FULL PAGE
   ============================================ */
.updates-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.update-full-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 24px;
}
.update-full-card__header {
  background: var(--color-muted);
  padding: 24px 32px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.update-full-card__title {
  font-size: 1.25rem;
}
.update-full-card__body {
  padding: 28px 32px;
}
.update-full-card__body p { margin-bottom: 16px; max-width: 100%; }
.update-full-card__body ul {
  list-style: none;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.update-full-card__body ul li {
  padding-left: 20px;
  position: relative;
  font-size: 0.9rem;
  color: var(--color-secondary);
}
.update-full-card__body ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.notify-section { text-align: center; }
.notify-section__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-section__inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 0; }
.contact-block {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}
.contact-block:first-child { padding-top: 0; }
.contact-block__icon { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.contact-block__label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}
.contact-block__value {
  font-size: 0.9375rem;
  color: var(--color-primary);
  font-weight: 500;
}
a.contact-block__value:hover { text-decoration: underline; }
.contact-note {
  margin-top: 24px;
}
.contact-note p {
  font-size: 0.875rem;
  max-width: 100%;
}

/* Contact form */
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-primary);
  background: var(--color-background);
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 48px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(23,23,23,0.08);
}
.form-group textarea { resize: vertical; min-height: 140px; line-height: 1.6; }
.form-group select { appearance: none; cursor: pointer; }
.form-error {
  font-size: 0.8rem;
  color: #DC2626;
  min-height: 16px;
}
.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #F0FDF4;
  border: 1px solid #86EFAC;
  border-radius: var(--radius);
  padding: 14px 18px;
  color: #166534;
  font-size: 0.9rem;
  font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__brand { display: flex; flex-direction: column; gap: 6px; }
.footer__tagline {
  font-size: 0.75rem;
  color: var(--color-secondary);
  margin: 0;
}
.footer__links {
  display: flex;
  gap: 28px;
}
.footer__links a {
  font-size: 0.875rem;
  color: var(--color-secondary);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-primary); }
.footer__copy {
  font-size: 0.75rem;
  color: var(--color-secondary);
  margin: 0;
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .about-snapshot__inner { grid-template-columns: 1fr; gap: 40px; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .contact-section__inner { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .updates-preview__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar__links { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 64px 0 56px; }
  .hero__title { font-size: 2.25rem; }
  .section { padding: 64px 0; }
  .invest__inner { padding: 56px 0; }

  .stats__grid { grid-template-columns: 1fr; gap: 0; }
  .stat { border-right: none; border-bottom: 1px solid var(--color-border); padding: 20px 0; }
  .stat:last-child { border-bottom: none; }

  .about-snapshot__visual { grid-template-columns: 1fr; }
  .about-snapshot__visual .visual-card:last-child { grid-column: auto; }

  .feature-grid { grid-template-columns: 1fr; }
  .updates-preview__grid { grid-template-columns: 1fr; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  .footer__links { flex-wrap: wrap; gap: 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .invest__inner { gap: 16px; }
  .update-full-card__header, .update-full-card__body { padding: 20px; }
}