/* === CSS Custom Properties === */
:root {
  --color-primary: #ff6b6b;
  --color-secondary: #ffa07a;
  --color-accent: #ffd93d;
  --color-text: #2d3748;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-warm: #fff5f0;
  --color-bg-card: #fff5f5;
  --color-bg-mission: #fffaf5;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-light);
  background: var(--color-bg);
}

h1, h2, h3 {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* === Navigation === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: box-shadow 0.3s ease;
}

.nav.scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--color-text-light);
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

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

/* === Hero (Homepage) === */
.hero {
  text-align: center;
  padding: 80px 24px;
  background: var(--color-bg-warm);
}

.hero h1 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 28px;
  color: var(--color-text-light);
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.35);
}

/* === Hero (Sub-pages: About, Contact) === */
.hero-sub {
  text-align: center;
  padding: 60px 24px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  color: #ffffff;
}

.hero-sub h1 {
  font-size: 1.8rem;
  color: #ffffff;
  margin-bottom: 8px;
}

.hero-sub p {
  font-size: 1.05rem;
  opacity: 0.9;
}

/* === Features Section === */
.features {
  padding: 60px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--color-bg-card);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
}

.feature-card .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* === Mission Section === */
.mission {
  text-align: center;
  padding: 60px 24px;
  background: var(--color-bg-mission);
}

.mission h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.mission p {
  font-size: 1.05rem;
  max-width: 550px;
  margin: 0 auto;
  color: var(--color-text-light);
}

/* === Story Section (About) === */
.story {
  padding: 60px 24px;
  max-width: 700px;
  margin: 0 auto;
}

.story h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  text-align: center;
}

.story p {
  font-size: 1.05rem;
  margin-bottom: 16px;
  color: var(--color-text-light);
}

/* === Values Section (About) === */
.values {
  padding: 60px 24px;
  background: var(--color-bg-warm);
}

.values h2 {
  font-size: 1.5rem;
  margin-bottom: 32px;
  text-align: center;
}

.values-list {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.value-item .icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.value-item h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.value-item p {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* === Contact Info Section === */
.contact-info {
  padding: 80px 24px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-info .contact-method {
  margin-bottom: 32px;
}

.contact-info .label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.contact-info a {
  font-size: 1.25rem;
  color: var(--color-primary);
  font-weight: 600;
  transition: color 0.2s ease;
}

.contact-info a:hover {
  color: var(--color-secondary);
}

.contact-info .location {
  font-size: 1.1rem;
  color: var(--color-text);
}

/* === Footer === */
.footer {
  padding: 24px;
  text-align: center;
  border-top: 1px solid #eee;
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--color-text-light);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* === Responsive: Desktop (768px+) === */
@media (min-width: 768px) {
  .nav {
    padding: 16px 48px;
  }

  .hero {
    padding: 120px 48px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-sub {
    padding: 80px 48px;
  }

  .hero-sub h1 {
    font-size: 2.5rem;
  }

  .features {
    padding: 80px 48px;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .mission {
    padding: 80px 48px;
  }

  .story {
    padding: 80px 48px;
  }

  .values {
    padding: 80px 48px;
  }

  .contact-info {
    padding: 100px 48px;
  }
}

/* === Responsive: Mobile nav === */
@media (max-width: 767px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

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