/* ============================================
   NYMBUS - Understanding Body Composition and Holistic Nutritional Balance
   Institutional Knowledge Portal Design System
   ============================================ */

/* Color System */
:root {
  --primary: #34495E;
  --accent-orange: #F39C12;
  --accent-green: #2ECC71;
  --accent-grey: #95A5A6;
  --light-bg: #ECF0F1;
  --silver: #BDC3C7;
  --white: #FFFFFF;
  --text-dark: #34495E;
  --text-light: #95A5A6;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Lora', serif;
  background-color: var(--white);
  color: var(--text-dark);
  line-height: 1.6;
  font-size: 16px;
}

/* Typography System */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
  letter-spacing: -0.5px;
}

h1 {
  font-size: 3.5rem;
  margin: 60px 0 40px;
  font-weight: 700;
  text-align: center;
  word-spacing: 0.1em;
}

h2 {
  font-size: 2.5rem;
  margin: 50px 0 30px;
  text-align: center;
}

h3 {
  font-size: 1.75rem;
  margin: 35px 0 20px;
}

h4 {
  font-size: 1.35rem;
  margin: 25px 0 15px;
}

p {
  margin-bottom: 20px;
  font-size: 1rem;
  line-height: 1.8;
  text-align: justify;
}

a {
  color: var(--accent-orange);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* Layout Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  
  h1 {
    font-size: 2rem;
    margin: 40px 0 25px;
  }
  
  h2 {
    font-size: 1.75rem;
    margin: 35px 0 20px;
  }
  
  h3 {
    font-size: 1.35rem;
  }
}

/* Header & Navigation */
header {
  background-color: var(--primary);
  padding: 20px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.logo {
  font-family: 'Inter', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 35px;
  align-items: center;
}

nav a {
  color: var(--white);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

nav a:after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-orange);
  transition: width 0.3s ease;
}

nav a:hover:after {
  width: 100%;
}

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

nav a.active {
  color: var(--accent-orange);
}

nav a.active:after {
  width: 100%;
}

@media (max-width: 768px) {
  .header-content {
    padding: 0 20px;
  }
  
  nav ul {
    gap: 20px;
  }
  
  nav a {
    font-size: 0.85rem;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(52, 73, 94, 0.85), rgba(52, 73, 94, 0.85)), 
              url('../images/hero-nutrition.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--white);
  text-align: center;
  padding: 120px 40px;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.hero h1 {
  color: var(--white);
  font-size: 3.5rem;
  margin: 0 0 30px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.3rem;
  max-width: 700px;
  text-align: center;
  color: var(--light-bg);
  margin: 0;
}

@media (max-width: 768px) {
  .hero {
    padding: 80px 20px;
    min-height: 400px;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
}

/* Section Spacing */
section {
  padding: 100px 0;
}

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

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

/* Content Layout - Two Column */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin: 60px 0;
}

.content-grid.reverse {
  direction: rtl;
}

.content-grid.reverse > * {
  direction: ltr;
}

.content-text {
  padding: 20px;
}

.content-text h2 {
  text-align: left;
  margin-top: 0;
}

.content-text p {
  text-align: left;
}

.content-image {
  position: relative;
}

.content-image img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  max-width: 600px;
}

@media (max-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .content-grid.reverse {
    direction: ltr;
  }
}

/* Three Column Grid */
.grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin: 60px 0;
}

.card {
  background-color: var(--white);
  padding: 40px;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border-top: 3px solid var(--accent-orange);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.card h3 {
  margin-top: 20px;
  text-align: center;
  color: var(--primary);
}

.card p {
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .grid-three {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-three {
    grid-template-columns: 1fr;
  }
  
  .card {
    padding: 30px;
  }
}

/* CTA Button */
.btn-cta {
  display: inline-block;
  background-color: var(--accent-orange);
  color: var(--white);
  padding: 14px 40px;
  border-radius: 3px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid var(--accent-orange);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-cta:hover {
  background-color: transparent;
  color: var(--accent-orange);
  box-shadow: 0 8px 20px rgba(243, 156, 18, 0.2);
}

.btn-cta-center {
  text-align: center;
  margin: 40px 0;
}

/* Footer */
footer {
  background-color: var(--primary);
  color: var(--white);
  padding: 80px 0 40px;
  margin-top: 100px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  margin-bottom: 60px;
}

.footer-section h3 {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 20px;
  text-align: left;
}

.footer-section p {
  font-size: 0.95rem;
  text-align: left;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
}

.footer-section a {
  color: var(--accent-orange);
  display: block;
  margin: 8px 0;
  font-size: 0.9rem;
}

.footer-section a:hover {
  text-decoration: underline;
}

.footer-divider {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
  padding-top: 40px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a {
  color: var(--accent-orange);
  margin: 0 20px;
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  
  footer {
    padding: 40px 0 30px;
  }
}

/* Blog Layout */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin: 60px 0;
}

.blog-card {
  background-color: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.blog-card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  background-color: var(--light-bg);
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-content {
  padding: 30px;
}

.blog-card-content h3 {
  margin: 0 0 15px;
  text-align: left;
  font-size: 1.35rem;
}

.blog-card-content p {
  text-align: left;
  font-size: 0.95rem;
  color: var(--text-light);
  margin: 15px 0;
}

.blog-card-meta {
  font-size: 0.85rem;
  color: var(--accent-grey);
  margin: 15px 0;
  text-align: left;
}

.blog-card-link {
  display: inline-block;
  color: var(--accent-orange);
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
}

.blog-card-link:hover {
  color: var(--primary);
  margin-left: 8px;
}

@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 50px auto;
  background-color: var(--light-bg);
  padding: 50px;
  border-radius: 4px;
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--primary);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--silver);
  border-radius: 3px;
  font-family: 'Lora', serif;
  font-size: 0.95rem;
  color: var(--primary);
  background-color: var(--white);
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-submit {
  width: 100%;
  background-color: var(--accent-orange);
  color: var(--white);
  padding: 14px;
  border: none;
  border-radius: 3px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.form-submit:hover {
  background-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(52, 73, 94, 0.2);
}

/* Disclaimer Box */
.disclaimer-box {
  background-color: var(--light-bg);
  border-left: 4px solid var(--accent-orange);
  padding: 25px 30px;
  border-radius: 3px;
  margin: 40px 0;
}

.disclaimer-box h4 {
  color: var(--primary);
  margin-top: 0;
}

.disclaimer-box p {
  margin-bottom: 10px;
  font-size: 0.95rem;
  text-align: left;
}

/* Images Sizing */
.img-hero {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.img-medium {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 4px;
}

.img-small {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 4px;
}

/* Success Message */
.success-message {
  background-color: var(--accent-green);
  color: var(--white);
  padding: 20px;
  border-radius: 3px;
  margin: 20px 0;
  text-align: center;
  font-weight: 600;
}

/* Page Specific */
.page-content {
  min-height: 400px;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

section {
  animation: fadeInUp 0.6s ease-out;
}

/* Print Styles */
@media print {
  header, footer, nav {
    display: none;
  }
  
  body {
    color: #000;
    background-color: #fff;
  }
}