/* ===== Variables ===== */
:root {
  --color-primary: #1a4d3a;
  --color-primary-light: #2d6b52;
  --color-accent: #c9a227;
  --color-accent-light: #e5c76b;
  --color-bg: #faf9f6;
  --color-bg-alt: #f0ede6;
  --color-text: #1a1a1a;
  --color-text-muted: #4a4a4a;
  --color-white: #ffffff;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --container: min(1200px, 92vw);
  --header-height: 72px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
  --radius: 8px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; margin: 0; padding: 0; }

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  border-radius: var(--radius);
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  flex-direction: column;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}
.logo:hover { text-decoration: none; }
.logo-company { font-size: 0.9rem; letter-spacing: 0.02em; }
.logo-brand { font-family: var(--font-serif); font-size: 1.5rem; }

.main-nav ul {
  display: flex;
  gap: 2rem;
}
.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--color-primary); text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.is-open { display: block; position: absolute; top: var(--header-height); left: 0; right: 0; background: var(--color-white); padding: 1rem; box-shadow: var(--shadow); }
  .main-nav.is-open ul { flex-direction: column; gap: 0.5rem; }
  .nav-toggle { display: flex; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #1a4d3a 100%);
  background-image: url('https://images.unsplash.com/photo-1544367567-0f2fcb009e0b?w=1920&q=80');
  background-size: cover;
  background-position: center;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(26, 77, 58, 0.7), rgba(26, 77, 58, 0.85));
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 2rem;
  max-width: 800px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  color: var(--color-white);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}
.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-accent-light);
  margin: 0;
  font-weight: 400;
  letter-spacing: 0.05em;
}

/* ===== Sections ===== */
.section {
  padding: 4rem 0;
}
.section:nth-of-type(even) { background: var(--color-bg-alt); }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 2rem;
  text-align: center;
}

/* ===== About ===== */
.about-content { max-width: 720px; margin: 0 auto; }
.about-content p { margin: 0 0 1rem; color: var(--color-text-muted); }
.lead { font-size: 1.15rem; color: var(--color-text) !important; }

/* ===== KALPA Brand Block ===== */
.kalpa-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
}
.kalpa-hero .section-title { color: var(--color-white); }
.brand-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  margin: 0 0 0.5rem;
  text-align: center;
}
.brand-tagline {
  font-size: 1.25rem;
  color: var(--color-accent-light);
  text-align: center;
  margin: 0 0 1.5rem;
  letter-spacing: 0.03em;
}
.brand-desc {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  opacity: 0.95;
  line-height: 1.7;
}

/* ===== Story Cards (Product Portfolio) ===== */
.story-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.story-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.25s, transform 0.25s;
}
.story-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.story-card .card-image {
  height: 200px;
  background: var(--color-bg-alt);
  background-image: var(--img);
  background-size: cover;
  background-position: center;
}
.story-card .card-content {
  padding: 1.5rem;
}
.story-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}
.story-card p { margin: 0; color: var(--color-text-muted); font-size: 0.95rem; }

/* ===== Philosophy ===== */
.philosophy-section .container { max-width: 720px; margin: 0 auto; text-align: center; }
.philosophy-section p { color: var(--color-text-muted); margin: 0 0 1rem; }

/* ===== Partners List ===== */
.partners-list {
  max-width: 560px;
  margin: 0 auto;
  padding-left: 1.5rem;
}
.partners-list li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  list-style: none;
}
.partners-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ===== Feature Boxes (Nestle-style) ===== */
.feature-boxes { padding: 3rem 0; }
.boxes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-box {
  position: relative;
  min-height: 280px;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  text-decoration: none;
  color: var(--color-white);
}
.feature-box:hover { text-decoration: none; }
.feature-box .box-bg {
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  background-image: var(--box-img);
  background-size: cover;
  background-position: center;
}
.feature-box .box-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75), transparent 50%);
}
.feature-box .box-content {
  position: relative;
  z-index: 1;
  padding: 1.5rem;
  width: 100%;
}
.feature-box h3 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.feature-box p { margin: 0 0 0.5rem; font-size: 0.9rem; opacity: 0.95; }
.read-more { font-weight: 600; font-size: 0.9rem; }

@media (max-width: 900px) {
  .boxes-grid { grid-template-columns: 1fr; }
}

/* ===== Vision & Mission ===== */
.vision-statement {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.mission-list {
  max-width: 560px;
  margin: 0 auto;
  padding-left: 1.5rem;
}
.mission-list li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  list-style: none;
}
.mission-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 3rem 0;
  text-align: center;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}
.footer-company { font-size: 0.9rem; opacity: 0.9; }
.footer-kalpa { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; }
.footer-tagline {
  margin: 0 0 1.5rem;
  opacity: 0.9;
  font-size: 1rem;
}
.to-top {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9rem;
}
.to-top:hover { background: rgba(255,255,255,0.25); text-decoration: none; }