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

:root {
  --accent: #ff5c35;
  --accent-dark: #e04520;
  --text: #1a1a1a;
  --text-muted: #6b7280;
  --bg: #ffffff;
  --bg-soft: #f9f8f6;
  --bg-dark: #111111;
  --border: #e5e7eb;
  --radius: 12px;
  --radius-sm: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

/* ===========================
   LAYOUT
=========================== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===========================
   HEADER / NAV
=========================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  flex-shrink: 0;
}

.logo-dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 8px;
  flex: 1;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.15s;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-soft);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  margin-left: auto;
}

/* ===========================
   HERO
=========================== */
.hero {
  background: var(--bg-soft);
  padding: 80px 0 96px;
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 680px;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 560px;
}

/* ===========================
   SITUATION
=========================== */
.situation {
  padding: 80px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.situation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.situation-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.situation-card.featured {
  background: var(--text);
  border-color: var(--text);
  color: #fff;
}

.situation-card.featured .checklist li {
  color: rgba(255,255,255,0.75);
}

.situation-card.featured .checklist li.done {
  color: #fff;
}

.situation-card.featured .checklist li.done::before {
  color: var(--accent);
}

.situation-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 20px;
}

.situation-icon {
  font-size: 32px;
}

.situation-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
}

.situation-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.situation-card.featured p {
  color: rgba(255,255,255,0.65);
}

.checklist {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.checklist li {
  font-size: 13px;
  color: var(--text-muted);
  padding-left: 22px;
  position: relative;
  line-height: 1.4;
}

.checklist li::before {
  content: '○';
  position: absolute;
  left: 0;
  color: var(--border);
}

.checklist li.done {
  color: var(--text);
}

.checklist li.done::before {
  content: '✓';
  color: var(--accent);
}

/* ===========================
   ARTICLES
=========================== */
.articles {
  background: var(--bg-soft);
  padding: 80px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.articles-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 40px;
}

.see-all {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.see-all:hover {
  text-decoration: underline;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow 0.15s, transform 0.15s;
}

.article-card:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.article-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.article-card h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.article-card h3 a:hover {
  color: var(--accent);
}

.article-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.article-meta {
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

/* ===========================
   NEWSLETTER
=========================== */
.newsletter {
  padding: 80px 0;
}

.newsletter-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.newsletter-text h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.newsletter-text p {
  font-size: 15px;
  color: var(--text-muted);
}

.newsletter-form {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.newsletter-form input {
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  width: 260px;
  outline: none;
  transition: border-color 0.15s;
}

.newsletter-form input:focus {
  border-color: var(--accent);
}

/* ===========================
   FOOTER
=========================== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.85);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer .logo {
  color: #fff;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.15s;
}

.footer-links a:hover {
  color: #fff;
}

.footer-disclaimer {
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  max-width: 600px;
  line-height: 1.6;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .situation-grid,
  .articles-grid {
    grid-template-columns: 1fr 1fr;
  }

  .newsletter-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .newsletter-form {
    width: 100%;
  }

  .newsletter-form input {
    flex: 1;
    width: auto;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .nav-links.nav-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    gap: 2px;
    z-index: 99;
    box-shadow: 0 8px 24px rgba(0,0,0,0.07);
  }

  .nav-links.nav-open a {
    font-size: 16px;
    padding: 10px 12px;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: 60px 0 72px;
  }

  .situation-grid,
  .articles-grid {
    grid-template-columns: 1fr;
  }

  .articles-header {
    flex-direction: column;
    gap: 8px;
  }
}