/* ============================================
   GEORGE MWANGI - PORTFOLIO WEBSITE
   Dark Theme Design (inspired by joebrogers.com)
   ============================================ */

/* CSS Variables */
:root {
  --bg-primary: #1a1a1a;
  --bg-secondary: #242424;
  --bg-card: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #808080;
  --accent: #00b4b4;
  --accent-hover: #00d4d4;
  --border-color: #3a3a3a;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1100px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 18px;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Links */
a {
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* Strong text */
strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 4rem 0;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
  width: 100%;
}

.hero-text {
  flex: 1;
  max-width: 650px;
}

.greeting {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.intro {
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.name-highlight {
  font-weight: 700;
  color: var(--text-primary);
}

.cta {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.email-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.email-link:hover {
  color: var(--accent-hover);
}

/* Profile Image */
.hero-image {
  flex-shrink: 0;
}

.profile-img {
  width: 300px;
  height: 380px;
  border-radius: 20px;
  object-fit: cover;
  object-position: top center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* ============================================
   SECTION LAYOUTS
   ============================================ */
section {
  padding: 5rem 0;
}

.section-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 4rem;
}

.skills-layout {
  grid-template-columns: 200px 1fr;
}

.section-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}

.center-header {
  grid-column: 1 / -1;
  align-items: center;
  text-align: center;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
}

.section-icon {
  color: var(--accent);
  opacity: 0.8;
}

.section-icon svg {
  width: 64px;
  height: 64px;
}

/* Section Content */
.section-content {
  color: var(--text-secondary);
}

.section-content p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.section-content p:last-child {
  margin-bottom: 0;
}

.inline-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.inline-link:hover {
  color: var(--accent-hover);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
#skills {
  background-color: var(--bg-primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.skill-category {
  padding: 1rem 0;
}

.skill-category-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.skill-list {
  list-style: none;
}

.skill-list li {
  margin-bottom: 0.5rem;
}

.skill-list a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition);
}

.skill-list a:hover {
  color: var(--accent);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
#projects {
  background-color: var(--bg-primary);
}

.projects-section {
  width: 100%;
}

.projects-section .section-header {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-card {
  display: block;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
  transition: var(--transition);
  text-decoration: none;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

.project-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-description {
  padding: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.project-card.no-link {
  cursor: default;
  position: relative;
}

.project-card.no-link:hover {
  transform: none;
  box-shadow: none;
}

.project-card.no-link:hover .project-image img {
  transform: none;
}

.private-badge {
  display: block;
  padding: 0.5rem 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-top: 1px solid var(--border-color);
}

.repo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-top: 1px solid var(--border-color);
  transition: var(--transition);
}

.project-card:hover .repo-badge {
  background-color: var(--accent);
  color: var(--bg-primary);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
#contact {
  background-color: var(--bg-primary);
  padding: 5rem 0;
}

#contact .section-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

#contact .section-header {
  margin-bottom: 2rem;
}

.contact-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 700px;
  width: 100%;
}

.contact-intro {
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 1.1rem;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  width: 100%;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  padding: 0.875rem 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: var(--transition);
  min-width: 160px;
}

.contact-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: rgba(0, 180, 180, 0.1);
}

.contact-link svg {
  flex-shrink: 0;
}

/* Download CV Button */
.download-cv {
  margin-top: 2rem;
}

.cv-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.cv-button:hover {
  background-color: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 180, 180, 0.3);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background-color: var(--bg-primary);
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
}

footer p {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ============================================
   SELECTION STYLING
   ============================================ */
::selection {
  background-color: var(--accent);
  color: var(--bg-primary);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

#hero.fade-in {
  opacity: 1;
  transform: none;
}