/* filepath: /home/dgribbons/vibefiles/styles.css */
/* Root variables for easy color management */
:root {
  --primary: #3498db;
  --primary-dark: #217dbb;
  --secondary: #2ecc71;
  --background: #f8f9fa;
  --surface: #fff;
  --text: #222;
  --text-light: #555;
  --border: #e0e0e0;
  --accent: #e74c3c;
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --radius: 12px;
  --transition: 0.2s cubic-bezier(.4,0,.2,1);
}

/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background: var(--background);
  color: var(--text);
  min-height: 100vh;
}

/* Navigation Bar */
header {
  background: var(--surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 2rem;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 1px;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.navbar-toggle-icon {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--primary);
  position: relative;
  border-radius: 2px;
  transition: var(--transition);
}
.navbar-toggle-icon::before,
.navbar-toggle-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}
.navbar-toggle-icon::before {
  top: -8px;
}
.navbar-toggle-icon::after {
  top: 8px;
}

.navbar-menu {
  display: flex;
}

.navbar-list {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-list li a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
  padding: 0.3rem 0;
}
.navbar-list li a::after {
  content: '';
  display: block;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
  position: absolute;
  left: 0;
  bottom: -2px;
}
.navbar-list li a:hover,
.navbar-list li a:focus {
  color: var(--primary);
}
.navbar-list li a:hover::after,
.navbar-list li a:focus::after {
  width: 100%;
}

/* Responsive Nav */
@media (max-width: 800px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
  }
  .navbar-toggle {
    display: block;
    margin-left: auto;
  }
  .navbar-menu {
    width: 100%;
    display: none;
    flex-direction: column;
    margin-top: 1rem;
  }
  .navbar-menu.active {
    display: flex;
  }
  .navbar-list {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(120deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  padding: 5rem 1rem 4rem 1rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
  animation: fadeInUp 1s;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: #f5f6fa;
}

.btn-hero {
  background: var(--secondary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.9rem 2.2rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(46,204,113,0.10);
  transition: background var(--transition), transform var(--transition);
  outline: none;
}
.btn-hero:hover,
.btn-hero:focus {
  background: var(--primary-dark);
  transform: translateY(-2px) scale(1.03);
}

/* Skills Section */
#skills {
  padding: 4rem 1rem 2rem 1rem;
  background: var(--surface);
}

#skills h2 {
  text-align: center;
  margin-bottom: 2.5rem;
  font-size: 2rem;
  color: var(--primary);
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.skill-category {
  background: var(--background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.2rem 1.2rem 1.2rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.skill-category:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 8px 32px rgba(52,152,219,0.10);
}

.skill-category h3 {
  color: var(--secondary);
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 1px;
}

.skill-category ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.skill-category li {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 0.7rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  justify-content: center;
}

.skill-category i {
  font-size: 1.3rem;
  color: var(--primary);
  transition: color var(--transition);
}
.skill-category li:hover i {
  color: var(--secondary);
}

/* Projects Section */
#projects {
  padding: 4rem 1rem 2rem 1rem;
  background: var(--background);
}

#projects h2 {
  text-align: center;
  margin-bottom: 2.5rem;
  font-size: 2rem;
  color: var(--primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.project-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: box-shadow var(--transition), transform var(--transition);
  animation: fadeInUp 1s;
}

.project-card:hover {
  box-shadow: 0 8px 32px rgba(52,152,219,0.15);
  transform: translateY(-4px) scale(1.03);
}

.project-image {
  width: 100%;
  max-width: 320px;
  border-radius: 8px;
  margin-bottom: 1rem;
  object-fit: cover;
  box-shadow: 0 2px 12px rgba(52,152,219,0.08);
}

.project-card h3 {
  margin: 0.5rem 0 0.5rem 0;
  font-size: 1.3rem;
  color: var(--secondary);
}

.project-card p {
  color: var(--text-light);
  font-size: 1rem;
  margin-bottom: 1rem;
  text-align: center;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.btn-project {
  background: var(--primary);
  color: #fff;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 2px 8px rgba(52,152,219,0.10);
  display: inline-block;
}
.btn-project:hover,
.btn-project:focus {
  background: var(--secondary);
  transform: translateY(-2px) scale(1.03);
}

/* Contact Section */
#contact {
  background: var(--surface);
  padding: 4rem 1rem 2rem 1rem;
}

#contact h2 {
  text-align: center;
  margin-bottom: 2.5rem;
  font-size: 2rem;
  color: var(--primary);
}

.contact-form {
  max-width: 500px;
  margin: 0 auto;
  background: var(--background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  animation: fadeInUp 1s;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.contact-form label {
  font-weight: 500;
  color: var(--text);
}

.contact-form label span {
  color: var(--accent);
  margin-left: 2px;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.7rem;
  font-size: 1rem;
  background: #f5f6fa;
  transition: border var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(52,152,219,0.10);
}

.btn-hero[type="submit"] {
  margin-top: 0.5rem;
  width: 100%;
}

/* --- Animations for fade-in on scroll --- */
.hero-content,
.skill-category,
.project-card,
.contact-form {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}

/* When animated in (handled by JS), opacity:1 and transform:translateY(0) will be set */

/* --- Contact Form Validation Styles --- */
.error-message {
  color: #e74c3c;
  font-size: 0.92rem;
  min-height: 18px;
  margin-top: 2px;
  transition: color 0.2s;
}

input:invalid,
textarea:invalid {
  border-color: #e74c3c;
  box-shadow: 0 0 0 2px rgba(231,76,60,0.08);
}

input:focus:invalid,
textarea:focus:invalid {
  border-color: #e74c3c;
  outline: none;
}

.form-success {
  color: #27ae60;
  font-size: 1rem;
  margin-top: 0.7rem;
  text-align: center;
  min-height: 20px;
  transition: color 0.2s;
}

/* Footer */
footer {
  background: var(--primary);
  color: #fff;
  text-align: center;
  padding: 1.5rem 0;
  margin-top: 2rem;
  font-size: 1rem;
  letter-spacing: 1px;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .navbar {
    padding: 1rem 0.5rem;
  }
  .hero {
    padding: 3rem 0.5rem 2rem 0.5rem;
  }
  .skill-grid,
  .projects-grid {
    gap: 1rem;
  }
  .contact-form {
    padding: 1rem;
  }
}

/* Utility classes (optional) */
.hide {
  display: none !important;
}