/*
  Main stylesheet for VAASLab.
  This file defines the colour palette, layout utilities and component
  styles to achieve a sleek, modern look with purple accents.
*/

/* Reset default box model and fonts */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  font-family: 'Montserrat', sans-serif;
  line-height: 1.6;
  scroll-behavior: smooth;
}

/* Colour variables for easy customisation */
:root {
  --clr-primary-start: #7a00cc;
  --clr-primary-end: #b832ff;
  --clr-secondary: #9155d9;
  --clr-accent: #ffffff;
  --clr-bg-light: #faf7fd;
  --clr-bg-dark: #14001f;
  --clr-text-dark: #2c003e;
  --clr-text-light: #ffffff;
  --transition-fast: 0.2s ease-in-out;
}

/* Global container to limit width */
.container {
  width: 90%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(20, 0, 31, 0.8);
  backdrop-filter: blur(10px);
  color: var(--clr-text-light);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-text-light);
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: var(--clr-text-light);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

nav a:hover {
  color: var(--clr-secondary);
}

/* Button styles */
.btn {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  color: var(--clr-text-light);
  background: linear-gradient(45deg, var(--clr-primary-start), var(--clr-primary-end));
  box-shadow: 0 4px 12px rgba(123, 0, 203, 0.4);
}

.btn-primary:hover {
  box-shadow: 0 6px 18px rgba(123, 0, 203, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--clr-accent);
  color: var(--clr-primary-start);
  border: 2px solid var(--clr-primary-start);
}

.btn-secondary:hover {
  background: var(--clr-primary-start);
  color: var(--clr-accent);
}

.btn-ghost {
  border: 2px solid var(--clr-accent);
  color: var(--clr-accent);
  background: transparent;
}

.btn-ghost:hover {
  background: var(--clr-accent);
  color: var(--clr-primary-start);
}

/* Hero section */
.hero {
  height: 100vh;
  background-image: url('hero-bg.png');
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--clr-text-light);
}

/* Overlay gradient to improve contrast */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(to bottom right, rgba(20, 0, 31, 0.6), rgba(40, 0, 70, 0.6));
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 2rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

/* About section */
.about {
  padding: 5rem 0;
  background: var(--clr-bg-light);
  color: var(--clr-text-dark);
}

.about-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.about-text {
  flex: 1;
}

.about-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-image img {
  max-width: 100%;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about h2 {
  margin-bottom: 1rem;
  font-size: 2rem;
  font-weight: 600;
  color: var(--clr-primary-start);
}

.about p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  line-height: 1.7;
}

/* Services section */
.services {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--clr-primary-start), var(--clr-primary-end));
  color: var(--clr-text-light);
  text-align: center;
}

.services h2 {
  margin-bottom: 2.5rem;
  font-size: 2.25rem;
  font-weight: 600;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2rem;
}

.service-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  padding: 2rem 1.5rem;
  text-align: left;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.service-icon {
  color: var(--clr-accent);
  margin-bottom: 1rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.service-card p {
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Contact section */
.contact {
  padding: 5rem 0;
  background: var(--clr-bg-light);
  color: var(--clr-text-dark);
}

.contact-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info {
  flex: 1;
}

.contact-info h2 {
  margin-bottom: 1rem;
  font-size: 2rem;
  color: var(--clr-primary-start);
}

.contact-info p {
  margin-bottom: 0.75rem;
  font-size: 1rem;
  line-height: 1.6;
}

.contact-info a {
  color: var(--clr-primary-start);
  text-decoration: none;
}

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

.contact-form {
  flex: 1;
  background: #ffffff;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #d7c3e5;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--clr-text-dark);
  background: #faf7fd;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--clr-primary-start);
  box-shadow: 0 0 0 3px rgba(123, 0, 203, 0.2);
}

.contact-form button {
  width: 100%;
}

/* Footer */
footer {
  padding: 2rem 0;
  background: var(--clr-bg-dark);
  color: var(--clr-text-light);
  text-align: center;
}

.footer-container p {
  font-size: 0.9rem;
}

/* Responsive adjustments */
@media (min-width: 768px) {
  .about-container,
  .contact-container {
    flex-direction: row;
  }
  .about-image,
  .about-text,
  .contact-info,
  .contact-form {
    flex: 1;
  }
}