/* ============================================================
   KERALA FIRST — Unboxing Kerala 2026
   Clean, Diplomatic, White & Green Theme
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-2: #f8f9fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f3f5;
  --border: #e9ecef;
  --border-hover: #ced4da;
  
  /* KeralaFirst Brand Colors */
  --kf-green: #15803d;
  --kf-green-hover: #166534;
  --kf-green-dim: rgba(21, 128, 61, 0.1);
  --kf-dark: #1f2937;
  
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── CONTAINER ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4 { font-family: var(--font-main); line-height: 1.2; font-weight: 700; color: var(--kf-dark); }
a { color: inherit; text-decoration: none; }
button { font-family: var(--font-main); border: none; cursor: pointer; }

.text-accent { color: var(--kf-green); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.nav-inner {
  max-width: 1100px; margin: 0 auto; padding: 0 24px;
  height: 72px; display: flex; align-items: center; gap: 32px;
}

.nav-logo { display: flex; align-items: center; }
.nav-logo-img { height: 36px; width: auto; object-fit: contain; }

.nav-links {
  display: flex; align-items: center; gap: 28px; margin-left: auto;
  font-size: 0.95rem; font-weight: 500;
}
.nav-links a { color: var(--text-secondary); transition: color var(--transition); }
.nav-links a:hover { color: var(--kf-green); }
.nav-links .nav-cta {
  background: var(--kf-green); color: #fff; padding: 10px 22px;
  border-radius: 6px; font-weight: 600;
  transition: all var(--transition);
}
.nav-links .nav-cta:hover { background: var(--kf-green-hover); }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; margin-left: auto; padding: 4px;
}
.hamburger span {
  width: 24px; height: 2px; background: var(--text-primary);
  border-radius: 2px; transition: var(--transition);
}

.mobile-menu {
  display: none; flex-direction: column; gap: 0;
  border-top: 1px solid var(--border);
  background: #ffffff;
}
.mobile-menu a {
  padding: 16px 24px; color: var(--text-secondary);
  border-bottom: 1px solid var(--border); font-weight: 500;
}
.mobile-menu a:hover { color: var(--kf-green); background: var(--bg-2); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu.open { display: flex; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 85vh; display: flex; align-items: center;
  justify-content: center; position: relative;
  padding: 120px 0 80px;
  background: var(--bg);
  background-image: radial-gradient(var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
}

.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--kf-green-dim); border: 1px solid rgba(21, 128, 61, 0.2);
  color: var(--kf-green); padding: 8px 16px; border-radius: 50px;
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.03em; margin-bottom: 24px;
}

.hero-desc {
  font-size: 1.15rem; color: var(--text-secondary); max-width: 680px;
  margin: 0 auto 40px; line-height: 1.7;
}

.hero-actions {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  flex-wrap: wrap; margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--kf-green); color: #fff;
  padding: 14px 28px; border-radius: 6px;
  font-weight: 600; font-size: 1rem;
  transition: all var(--transition); box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--kf-green-hover); box-shadow: var(--shadow); transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--kf-dark);
  padding: 14px 28px; border-radius: 6px;
  border: 1px solid var(--border-hover); font-weight: 600; font-size: 1rem;
  transition: all var(--transition);
}
.btn-ghost:hover { border-color: var(--kf-green); color: var(--kf-green); background: var(--kf-green-dim); }

/* ============================================================
   STATS STRIP
   ============================================================ */
.stats-strip {
  background: #ffffff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 24px;
}

.stats-strip-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px; align-items: flex-start;
}

@media (max-width: 900px) { .stats-strip-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .stats-strip-inner { grid-template-columns: 1fr; } }

.stat-pill { text-align: left; padding: 24px; background: var(--bg-2); border-radius: var(--radius); border: 1px solid var(--border); }
.stat-pill-header { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.stat-pill-num {
  font-family: var(--font-main); font-size: 2.5rem;
  font-weight: 800; color: var(--kf-dark); letter-spacing: -0.02em; line-height: 1;
}
.stat-pill-unit { font-size: 1rem; color: var(--text-secondary); font-weight: 600; }
.stat-pill-label { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.4; font-weight: 500; }

/* ============================================================
   SECTION COMMON
   ============================================================ */
section { padding: 96px 0; }

.section-header { text-align: left; margin-bottom: 48px; max-width: 800px; }
.section-tag {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.05em; color: var(--kf-green);
  text-transform: uppercase; margin-bottom: 16px;
}
.section-header h2 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 16px; letter-spacing: -0.02em; }
.section-header p { font-size: 1.1rem; color: var(--text-secondary); }

/* ============================================================
   ASK SECTION / AI CHAT
   ============================================================ */
.ask-section { background: var(--bg-2); border-bottom: 1px solid var(--border); }

.prompt-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin-bottom: 32px;
}

.prompt-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  text-align: left; cursor: pointer; transition: all var(--transition);
  display: flex; flex-direction: column; gap: 12px; box-shadow: var(--shadow-sm);
}
.prompt-card:hover { border-color: var(--kf-green); box-shadow: var(--shadow); transform: translateY(-2px); }
.prompt-icon { font-size: 1.25rem; }
.prompt-card p { font-size: 0.95rem; color: var(--text-primary); font-weight: 500; line-height: 1.5; }
.prompt-cta { font-size: 0.85rem; color: var(--kf-green); font-weight: 600; margin-top: auto; }

/* CHAT CONTAINER */
.chat-container {
  display: flex; flex-direction: column; background: #ffffff;
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); margin-bottom: 24px; overflow: hidden;
}

.chat-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border); background: var(--bg-2);
}
.chat-header-info { display: flex; align-items: center; gap: 12px; }
.chat-avatar { width: 40px; height: 40px; background: var(--kf-green-dim); color: var(--kf-green); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.chat-name { font-weight: 600; font-size: 1rem; color: var(--kf-dark); }
.chat-status { font-size: 0.8rem; color: var(--text-secondary); }

.chat-messages {
  flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 16px;
  min-height: 350px; max-height: 500px;
}

.chat-msg { display: flex; }
.chat-msg.user { justify-content: flex-end; }
.msg-bubble {
  max-width: 85%; padding: 14px 18px; border-radius: var(--radius);
  font-size: 0.95rem; line-height: 1.6;
}
.chat-msg.assistant .msg-bubble { background: var(--bg-2); border: 1px solid var(--border); border-bottom-left-radius: 4px; color: var(--text-primary); }
.chat-msg.user .msg-bubble { background: var(--kf-green); color: #fff; font-weight: 500; border-bottom-right-radius: 4px; }

.typing-indicator { display: flex; gap: 4px; align-items: center; padding: 4px; }
.typing-dot { width: 6px; height: 6px; background: var(--kf-green); border-radius: 50%; animation: typingBounce 1.2s ease infinite; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce { 0%,80%,100% { transform: translateY(0); opacity: 0.4; } 40% { transform: translateY(-4px); opacity: 1; } }

.chat-input-wrap { display: flex; align-items: center; gap: 12px; padding: 16px 24px; border-top: 1px solid var(--border); }
.chat-input {
  flex: 1; background: var(--bg-2); border: 1px solid var(--border); color: var(--text-primary);
  padding: 12px 20px; border-radius: 50px; font-size: 0.95rem; font-family: var(--font-body);
  transition: border-color var(--transition); outline: none;
}
.chat-input:focus { border-color: var(--kf-green); background: #ffffff; }
.chat-input::placeholder { color: var(--text-muted); }
.chat-send {
  width: 44px; height: 44px; border-radius: 50%; background: var(--kf-green); color: #fff;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.chat-send:hover { background: var(--kf-green-hover); }

.chat-disclaimer { padding: 12px 24px; font-size: 0.75rem; color: var(--text-muted); border-top: 1px solid var(--border); background: var(--bg-2); }

/* ============================================================
   CHAPTERS GRID
   ============================================================ */
.inside-report { background: #ffffff; }

.chapters-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 900px) { .chapters-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .chapters-grid { grid-template-columns: 1fr; } }

.chapter-card {
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 24px; transition: all var(--transition); box-shadow: var(--shadow-sm);
}
.chapter-card:hover { border-color: var(--kf-green); box-shadow: var(--shadow); transform: translateY(-2px); }

.chapter-num { font-family: var(--font-main); font-size: 0.85rem; font-weight: 700; color: var(--kf-green); margin-bottom: 12px; }
.chapter-card h3 { font-size: 1.15rem; margin-bottom: 12px; }
.chapter-card p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }

/* ============================================================
   BLOGS SECTION
   ============================================================ */
.analysis-section { background: #ffffff; }

.blogs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 900px) { .blogs-grid { grid-template-columns: 1fr; } }

.blog-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 24px;
  text-align: left; transition: all var(--transition);
  display: flex; flex-direction: column; gap: 16px; box-shadow: var(--shadow-sm);
  text-decoration: none; color: inherit;
}
.blog-card:hover { border-color: var(--kf-green); box-shadow: var(--shadow); transform: translateY(-2px); }
.blog-icon { font-size: 2rem; }
.blog-card h3 { font-size: 1.15rem; color: var(--kf-dark); }
.blog-card p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }
.blog-cta { font-size: 0.9rem; color: var(--kf-green); font-weight: 600; margin-top: auto; display: inline-flex; align-items: center; gap: 4px; }

/* ============================================================
   DOWNLOAD SECTION
   ============================================================ */
.download-section { background: var(--bg-2); border-top: 1px solid var(--border); }

.download-card {
  display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: center;
  background: #ffffff; border: 1px solid var(--border); border-radius: 16px; padding: 48px; box-shadow: var(--shadow-sm);
}
@media (max-width: 900px) { .download-card { grid-template-columns: 1fr; gap: 40px; padding: 32px 24px; } }

.gov-badge {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--kf-green-dim); border: 1px solid rgba(21, 128, 61, 0.2);
  padding: 12px 16px; border-radius: 8px; margin-bottom: 24px;
}
.gov-title { font-size: 0.9rem; font-weight: 700; color: var(--kf-green); }
.gov-sub { font-size: 0.8rem; color: var(--text-secondary); margin-top: 2px; }

.download-left h2 { font-size: clamp(1.8rem, 3vw, 2.25rem); margin-bottom: 16px; letter-spacing: -0.02em; }
.download-left p { font-size: 1rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 32px; }

.download-actions { display: flex; flex-direction: column; gap: 20px; }
.btn-download {
  display: inline-flex; align-items: center; gap: 10px; background: var(--kf-dark); color: #fff;
  padding: 14px 24px; border-radius: 6px; font-weight: 600; font-size: 1rem; width: fit-content; transition: var(--transition);
}
.btn-download:hover { background: #000; box-shadow: var(--shadow); }

.report-mockup {
  border-radius: 4px; padding: 24px; border: 1px solid var(--border); background: #fff;
  box-shadow: var(--shadow-lg); display: flex; flex-direction: column; align-items: center; text-align: center;
}
.report-mockup h4 { font-size: 1.1rem; margin: 16px 0 8px; }
.report-mockup p { font-size: 0.8rem; color: var(--text-muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: #ffffff; border-top: 1px solid var(--border); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 32px; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand p { font-size: 0.9rem; color: var(--text-secondary); margin-top: 12px; line-height: 1.6; max-width: 320px; }
.footer-links h4 { font-size: 0.9rem; font-weight: 700; color: var(--kf-dark); margin-bottom: 16px; }
.footer-links a { display: block; font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; transition: color var(--transition); }
.footer-links a:hover { color: var(--kf-green); }

.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); }

/* ============================================================
   RESPONSIVE FIXES
   ============================================================ */
@media (max-width: 768px) {
  section { padding: 64px 0; }
  .hero { padding: 100px 0 64px; }
  .download-right { display: none; }
  .prompt-cards { grid-template-columns: 1fr; }
  .chat-input-wrap { padding: 12px 16px; flex-wrap: wrap; }
  .chat-messages { padding: 16px; }
}