:root {
    --primary-color: #2D3E50;      /* dark slate */
    --secondary-color: #4CAF50;    /* accent green */
    --text-color: #333;
    --light-text-color: #f4f4f4;
    --background-light: #f9f9f9;

    --soft-red: #a83232;           /* muted burgundy */
    --soft-white: #f0f0f0;         /* off-white */
    --soft-gray: #e9ecef;
	  --black: #000000;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-light);
}

.container {
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 5px 0;
}

h1, h2, h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

h1 {
    font-size: 2.8em;
}

h2 {
    font-size: 2.2em;
    text-align: center;
    margin-bottom: 40px;
}

h3 {
    font-size: 1.6em;
}

p {
    margin-bottom: 15px;
}

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

/* Button */
.button {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 25px;
    border-radius: 6px;
    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.button:hover {
    background-color: #3e8e41;
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Navbar */
.navbar {
    background-color: var(--primary-color);
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar .logo img {
    height: 70px;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 15px;
    max-width: 60%;
}

.navbar .logo-text {
    font-size: 0.95em;
    line-height: 1.4;
    color: var(--soft-white);
    max-width: 45ch;
    font-weight: 400;
}

.navbar nav ul {
    list-style: none;
    display: flex;
}

.navbar nav ul li {
    margin-left: 25px;
}

.navbar nav ul li a {
    color: var(--soft-white);
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar nav ul li a:hover {
    color: #6DE15A;
}

.navbar nav ul li .button {
    padding: 8px;
}

/* Sliding underline for main-nav links */
.main-nav a:not(.button) {
  position: relative;
  transition: color 0.3s ease;
}

.main-nav a:not(.button)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: #3e8e41;
  transition: width 0.3s ease;
}

.main-nav a:not(.button):hover::after {
  width: 100%;
}

/* Page Description */
.page-description {
  position: relative;
  text-align: center;
  color: white;
  overflow: hidden;
}

.page-description h2 {
  color: var(--soft-white) !important;
  text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.6);
}

.page-description-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.page-description-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-description .container {
  position: relative;
  z-index: 2;
  padding: 60px 20px;
}

.page-description p {
  font-size: 1.1rem;
  line-height: 1.6;
}

/* White Box */
.white-box {
  background: var(--soft-gray);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  text-align: center;
  color: var(--text-color);
  max-width: 900px;
  margin: 0 auto;
}

.white-box p {
  font-size: 0.95rem;
  line-height: 1.5;
  color: #000;
}

.white-box a {
  color: #2d6cdf;
  position: relative;
  transition: color 0.3s ease;
}

.white-box a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: #2d6cdf;
  transition: width 0.3s ease;
}

.white-box a:hover::after {
  width: 100%;
}

.email-highlight {
  color: #2d6cdf;
  font-weight: 600;
  background: #f0f0f0;
  padding: 2px 6px;
  border-radius: 4px;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--soft-white);
    text-align: center;
    padding: 30px 0;
    font-size: 0.9em;
}

.footer .container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
    }

    .navbar nav ul {
        margin-top: 15px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .navbar nav ul li {
        margin: 0 10px 10px 10px;
    }

    .footer .container {
        flex-direction: column;
        gap: 15px;
    }

    .white-box {
        width: 95%;
        padding: 1.5rem;
    }

    h1 {
      font-size: 2em;
    }

    h2 {
      font-size: 1.6em;
      margin-bottom: 20px;
    }
}

/* Vuloncology Themed Cards */
.vul-container {
  padding: 1.5rem;
  background-color: #fff;
  border-radius: 8px;
  text-align: left;
}

.vul-container h2 {
  color: var(--soft-red);
  padding-bottom: 0.3rem;
  margin-top: 2rem;
  font-weight: 600;
}

.vul-card {
  background: linear-gradient(145deg, #E9ECEF, #ffffff);
  border: 1px solid #aac6d6;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  color: var(--black);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.vul-container ul {
  margin: 0;
  padding-left: 1.2rem;
}

.vul-container li {
  margin-bottom: 0.5rem;
}

.vul-container code {
  background-color: #222;
  color: var(--soft-red);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.vul-container table {
  width: 100%;
  border-collapse: collapse;
  background-color: #1a1a1a;
  margin-top: 1rem;
}

.vul-container th,
.vul-container td {
  border: 1px solid var(--soft-red);
  padding: 0.75rem;
  text-align: left;
}

.vul-container th {
  background-color: var(--soft-red);
  color: var(--soft-white);
}

.vul-container td {
  color: #ddd;
}

.section-title {
  display: flex;
  align-items: center;   /* vertical center */
  gap: 10px;             /* space between image and text */
  margin-top: 3rem;      /* add extra space above each title */
  margin-bottom: 0; /* shrink space below h3 */
}

.section-title img {
  height: 70px;          /* consistent sizing */
  flex-shrink: 0;        /* don’t let the image get squished */
}

.section-subtitle {
  text-align: center;
  font-size: 1.6em;              /* match h3 size */
  font-weight: 600;              /* bold like titles */
  color: var(--secondary-color); /* your green accent */
  margin-top: 0;            /* small space from title above */
  margin-bottom: 0.25rem; /* shrink space below h3 */
}