/* ============================================
   Almiva Oy – Global Stylesheet
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-bg: #FEF7EF;
  --color-primary: #1E3D2E;
  --color-accent: #C8A55A;
  --color-text: #2D2D2D;
  --color-text-light: #FEF7EF;
  --color-border: #e0d6cb;
  --color-card-bg: #ffffff;
  --color-primary-light: #2a5640;
  --color-accent-light: #d4b76e;
  --font-heading: 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-body: 'Source Sans 3', system-ui, -apple-system, sans-serif;
  --max-width: 1140px;
  --section-padding: 5rem 1.5rem;
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-accent);
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.25;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Header / Navigation --- */
.site-header {
  background-color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo img {
  height: 42px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-links a {
  color: var(--color-text-light);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: 4px;
  transition: background-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background-color: rgba(254, 247, 239, 0.12);
  color: var(--color-accent);
}

/* Language switcher */
.nav-lang {
  display: flex;
  align-items: center;
  color: var(--color-text-light);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  padding: 0.5rem 0.85rem;
  opacity: 0.7;
  white-space: nowrap;
}

.nav-lang a {
  padding: 0.25rem 0.4rem !important;
  font-size: 0.85rem !important;
}

.nav-lang a.active {
  background-color: transparent !important;
  color: var(--color-text-light) !important;
  font-weight: 700;
  opacity: 1;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--color-text-light);
  margin: 5px 0;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero Section --- */
.hero {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: 5rem 1.5rem 4rem;
  text-align: center;
}

.hero-image {
  position: relative;
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
  padding: 6rem 1.5rem 5rem;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(30, 61, 46, 0.75) 0%,
    rgba(30, 61, 46, 0.6) 50%,
    rgba(30, 61, 46, 0.8) 100%
  );
}

.hero-image .hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-text-light);
  font-size: clamp(2rem, 5vw, 3.2rem);
  max-width: 800px;
  margin: 0 auto 1rem;
}

.hero .subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--color-accent);
  max-width: 600px;
  margin: 0 auto 2rem;
  font-weight: 400;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-align: center;
}

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

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

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

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

/* --- Section Defaults --- */
.section {
  padding: var(--section-padding);
}

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

.section-dark {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.section-dark h2,
.section-dark h3 {
  color: var(--color-text-light);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-header p {
  color: #5a5a5a;
  font-size: 1.05rem;
}

/* Accent line under section headings */
.section-header h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background-color: var(--color-accent);
  margin: 0.75rem auto 0;
}

/* --- Service Cards --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.card {
  background-color: var(--color-card-bg);
  border-radius: 8px;
  padding: 2rem 1.75rem;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(30, 61, 46, 0.08);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.95rem;
  color: #5a5a5a;
  margin-bottom: 0;
}

/* --- About / Company sections --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.values-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.value-item {
  padding: 1.75rem;
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-card-bg);
  border-radius: 0 8px 8px 0;
}

.value-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.value-item p {
  font-size: 0.95rem;
  color: #5a5a5a;
  margin-bottom: 0;
}

/* --- Partner / Biochar banner --- */
.partner-banner {
  display: flex;
  align-items: center;
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.partner-banner img {
  height: 50px;
  width: auto;
}

/* --- Contact info --- */
.contact-info {
  font-size: 1.05rem;
  line-height: 2;
}

.contact-info a {
  color: var(--color-accent);
  font-weight: 600;
}

.contact-info a:hover {
  text-decoration: underline;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: 3rem 1.5rem 1.5rem;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
}

.footer-col h4 {
  color: var(--color-accent);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-col a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.4rem;
  opacity: 0.85;
}

.footer-col a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.footer-col p {
  font-size: 0.9rem;
  opacity: 0.85;
  line-height: 1.8;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(254, 247, 239, 0.15);
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* --- Founder page --- */
.founder-photo {
  width: 100%;
  max-width: 360px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* --- Under construction --- */
.under-construction {
  text-align: center;
  padding: 6rem 1.5rem;
}

.under-construction h1 {
  margin-bottom: 1rem;
}

.under-construction p {
  font-size: 1.1rem;
  color: #5a5a5a;
}

/* --- Privacy / Legal --- */
.legal-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.legal-content h2 {
  margin-top: 2rem;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  :root {
    --section-padding: 3rem 1.25rem;
  }

  /* Mobile navigation */
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    padding: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }

  /* Hamburger animation */
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  /* Layout adjustments */
  .two-col {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .partner-banner {
    flex-direction: column;
    text-align: center;
  }

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

  .hero {
    padding: 3.5rem 1.25rem 3rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .nav-container {
    height: 60px;
  }

  .nav-logo img {
    height: 36px;
  }
}