/* ====================================
   PORTFOLIO WEBSITE STYLES
   Uses only semantic tokens from tokens.css
   ==================================== */

/* --- Base Page Styles --- */
html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-family-base, -apple-system, sans-serif);
  background-color: var(--color-bg-primary, #0E0E0E);
  color: var(--color-text-primary, #F9FAFB);
  line-height: var(--line-height-body, 1.5);
}

/* --- Navigation --- */
.site-nav {
  position: sticky;
  top: 0;
  background-color: var(--color-bg-primary, #0E0E0E);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-default, #404040);
  z-index: 100;
  padding: var(--spacing-component-gap, 1.5rem) 0;
}

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

.nav-logo {
  font-size: var(--font-size-heading-4, 1.25rem);
  font-weight: var(--font-weight-emphasis, 600);
  color: var(--color-text-primary, #F9FAFB);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-logo:hover {
  color: var(--color-interactive-primary, #22C55E);
}

.nav-links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-component-gap, 1.5rem);
}

.nav-links a {
  color: var(--color-text-secondary, #F3F4F6);
  text-decoration: none;
  font-size: var(--font-size-body, 1rem);
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-interactive-primary, #22C55E);
}

.nav-links a:focus-visible {
  outline: 2px solid var(--color-interactive-primary, #22C55E);
  outline-offset: 4px;
  border-radius: var(--border-radius-base, 0.25rem);
}

/* Mobile nav toggle (hamburger) */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-element-gap, 0.75rem);
  margin: calc(var(--spacing-element-gap, 0.75rem) * -1);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary, #F9FAFB);
  transition: all 0.3s ease;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-interactive-primary, #22C55E);
  outline-offset: 4px;
  border-radius: var(--border-radius-base, 0.25rem);
}

/* Mobile nav overlay */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg-primary, #0E0E0E);
  z-index: 99;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
}

.nav-mobile.active {
  display: flex;
}

.nav-mobile-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-component-gap, 1.5rem);
  text-align: center;
}

.nav-mobile-links a {
  color: var(--color-text-primary, #F9FAFB);
  text-decoration: none;
  font-size: var(--font-size-heading-3, 1.5rem);
  transition: color 0.2s ease;
}

.nav-mobile-links a:hover {
  color: var(--color-interactive-primary, #22C55E);
}

/* --- Hero Section --- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-section-gap, 3rem) var(--spacing-component-gap, 1.5rem);
}

.hero-content {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-component-gap, 1.5rem);
}

.hero-avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 3px solid var(--color-interactive-primary, #22C55E);
  background-color: var(--color-bg-elevated, #262626);
  overflow: hidden;
  margin-bottom: var(--spacing-element-gap, 0.75rem);
  object-fit: cover;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: var(--font-weight-emphasis, 600);
  line-height: var(--line-height-heading, 1.25);
  margin: 0;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--color-text-secondary, #F3F4F6);
  margin: 0;
  line-height: var(--line-height-body, 1.5);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-component-gap, 1.5rem);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--spacing-element-gap, 0.75rem);
}

/* --- About Section --- */
.about-section {
  padding: var(--spacing-section-gap, 3rem) 0;
  background-color: var(--color-bg-secondary, #1A1A1A);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content h3 {
  margin-top: var(--spacing-component-gap, 1.5rem);
  margin-bottom: var(--spacing-element-gap, 0.75rem);
  color: var(--color-text-primary, #F9FAFB);
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-element-gap, 0.75rem);
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill-pill {
  background-color: var(--color-bg-elevated, #262626);
  color: var(--color-interactive-primary, #22C55E);
  padding: var(--spacing-element-gap, 0.75rem) var(--spacing-component-gap, 1.5rem);
  border-radius: var(--border-radius-pill, 999px);
  font-size: var(--font-size-caption, 0.875rem);
  font-weight: var(--font-weight-emphasis, 600);
  border: 1px solid var(--color-border-default, #404040);
}

/* --- Projects Section --- */
.projects-section {
  padding: var(--spacing-section-gap, 3rem) 0;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--spacing-component-gap, 1.5rem);
  margin-top: var(--spacing-component-gap, 1.5rem);
}

.project-card {
  background-color: var(--color-bg-secondary, #1A1A1A);
  border: 1px solid var(--color-border-default, #404040);
  border-radius: var(--border-radius-card, 0.5rem);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-interactive-primary, #22C55E);
}

.project-thumbnail {
  aspect-ratio: 3 / 2;
  background-color: var(--color-bg-elevated, #262626);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted, #E5E7EB);
  font-size: var(--font-size-heading-4, 1.25rem);
  font-weight: var(--font-weight-emphasis, 600);
}

/* --- Gradient Thumbnails --- */
.thumbnail-icon {
  font-size: 2.5rem;
  font-weight: var(--font-weight-emphasis, 600);
  z-index: 1;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.thumbnail-portfolio {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: #60a5fa;
}

.thumbnail-landing {
  background: linear-gradient(135deg, #1a2e1a 0%, #163e21 50%, #0f6034 100%);
  color: var(--color-interactive-primary, #22C55E);
}

.thumbnail-habits {
  background: linear-gradient(135deg, #2e1a2e 0%, #3e1645 50%, #600f5a 100%);
  color: #c084fc;
}

.thumbnail-budget {
  background: linear-gradient(135deg, #2e2a1a 0%, #3e3516 50%, #60500f 100%);
  color: #fbbf24;
}

.project-content {
  padding: var(--spacing-component-gap, 1.5rem);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-card h3 {
  margin: 0 0 var(--spacing-element-gap, 0.75rem) 0;
  color: var(--color-text-primary, #F9FAFB);
  font-size: var(--font-size-heading-4, 1.25rem);
}

.project-description {
  color: var(--color-text-secondary, #F3F4F6);
  line-height: var(--line-height-body, 1.5);
  margin-bottom: var(--spacing-component-gap, 1.5rem);
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  margin-bottom: var(--spacing-component-gap, 1.5rem);
}

.tech-stack li {
  background-color: var(--color-bg-elevated, #262626);
  color: var(--color-interactive-primary, #22C55E);
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius-pill, 999px);
  font-size: var(--font-size-caption, 0.875rem);
  border: 1px solid var(--color-border-subtle, #404040);
}

.project-links {
  display: flex;
  gap: var(--spacing-element-gap, 0.75rem);
  margin-top: auto;
}

.button-small {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-caption, 0.875rem);
}

/* --- Contact Section --- */
.contact-section {
  padding: var(--spacing-section-gap, 3rem) 0;
  background-color: var(--color-bg-secondary, #1A1A1A);
  text-align: center;
}

.contact-text {
  color: var(--color-text-secondary, #F3F4F6);
  max-width: 600px;
  margin: 0 auto var(--spacing-component-gap, 1.5rem) auto;
  line-height: var(--line-height-body, 1.5);
}

.contact-buttons {
  display: flex;
  gap: var(--spacing-component-gap, 1.5rem);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-component-gap, 1.5rem);
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--color-border-default, #404040);
  padding: var(--spacing-component-gap, 1.5rem) 0;
  text-align: center;
}

.site-footer p {
  margin: 0.25rem 0;
  color: var(--color-text-muted, #E5E7EB);
}

/* --- Responsive Adjustments --- */
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .hero-avatar {
    width: 150px;
    height: 150px;
  }

  .hero {
    padding: calc(var(--spacing-section-gap, 3rem) * 1.5) var(--spacing-component-gap, 1.5rem);
  }
}

@media (min-width: 1024px) {
  .about-section,
  .projects-section,
  .contact-section {
    padding: calc(var(--spacing-section-gap, 3rem) * 1.5) 0;
  }

  .project-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  }
}