/* =========================================
   DESIGN TOKENS (CSS VARIABLES)
   ========================================= */
:root {
  /* Colors */
  --color-primary: #3e2a47;
  --color-primary-dark: #2f2036;
  --color-accent: #f4c542;
  --color-bg-light: #fff7e1;
  --color-bg-cream: #f9f6f1;
  --color-text-dark: #4a4a4a;
  --color-border-light: rgba(62, 42, 71, 0.2);
  --color-border-medium: rgba(62, 42, 71, 0.35);

  /* Spacing scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 0 10px rgba(0,0,0,0.06);

  /* Typography */
  --font-base: 1rem;
  --font-sm: 0.9rem;
  --font-lg: 1.2rem;
  --font-xl: clamp(1.8rem, 4vw, 2.6rem);
  --font-xxl: clamp(2rem, 5vw, 3rem);
}

/* =========================================
   GLOBAL STYLES
   ========================================= */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: var(--color-bg-cream);
  color: var(--color-text-dark);
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: #111;
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  z-index: 9999;
}
.skip-link:focus {
  left: 10px;
}

.section-title{
  margin: 0 0 var(--space-md);
  color: var(--color-primary);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
}

/* =========================================
   NAVIGATION
   ========================================= */
.site-nav {
  background: var(--color-primary);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
}

.nav__logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.nav__links {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
}

.nav__links a {
  color: #fff;
  text-transform: uppercase;
  font-size: var(--font-sm);
}
.nav__links a:hover {
  color: var(--color-accent);
}
.nav__links a[aria-current="page"] {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 6px;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  .nav__links {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
  background: var(--color-accent);
  color: var(--color-primary);
}

.hero__content {
  max-width: 70ch;
  padding: 3rem 0 2.5rem;
}

.hero__kicker {
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.hero__title {
  margin: 0;
  line-height: 1.1;
  font-size: var(--font-xxl);
}

.hero__actions{
  margin-top: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero__stack {
  margin-top: var(--space-sm);
  font-weight: 700;
}

.hero__summary {
  margin-top: var(--space-sm);
  line-height: 1.65;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-primary-dark);
}

.btn--secondary {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--secondary:hover {
  background: rgba(62, 42, 71, 0.08);
}

.btn--ghost {
  background: transparent;
  border: 2px solid var(--color-border-medium);
  color: var(--color-primary);
}
.btn--ghost:hover {
  background: rgba(62, 42, 71, 0.08);
}

/* Focus visible */
.btn:focus-visible,
.nav__links a:focus-visible {
  outline: 3px solid #111;
  outline-offset: 3px;
}

/* =========================================
   PAGE HERO (Projects/About)
   ========================================= */
.page-hero {
  background: var(--color-bg-light);
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border-light);
}

.page-hero .container {
  padding: 2.25rem var(--space-md);
}

.page-hero__title {
  margin: 0;
  font-size: var(--font-xl);
}

.page-hero__subtitle {
  margin-top: var(--space-sm);
  max-width: 70ch;
  line-height: 1.65;
}

/* =========================================
   PROJECTS GRID + CARDS
   ========================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
  align-items: stretch;
}

.project-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 1.1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.project-card__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.project-card__title {
  margin: 0.75rem 0 0;
  color: var(--color-primary);
  font-size: var(--font-lg);
}

.project-card__desc {
  margin: 0;
  line-height: 1.6;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
  padding: 0;
  margin: 0;
}

.tags li {
  border: 1px solid var(--color-border-medium);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: var(--font-sm);
}

.card__actions {
  margin-top: auto;
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 900px) {
  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================
   FOOTER
   ========================================= */
footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-md) 0;
  text-align: center;
}
footer p {
  margin: 0;
}
.site-footer { 
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-md) 0;
  text-align: center;
}
.site-footer p { margin: 0; }


/* =========================================
   ABOUT PAGE REFINEMENTS
   ========================================= */

/* Improve text readability */
.section-text {
  max-width: 70ch;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
  font-size: 1.1rem;
  color: var(--color-text-dark);
}

/* Subheading spacing + visual weight */
.subheading {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1.4rem;
  color: var(--color-primary);
  font-weight: 700;
  text-align: left;
}

/* Skills grid improvements */
.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.card {
  background: var(--color-accent);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  height: auto;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card h4 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--color-primary);
}

/* Timeline improvements */
.timeline {
  position: relative;
  margin: var(--space-xl) auto;
  padding-left: 40px;
  max-width: 800px;
}

.timeline::after {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-primary);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 50%;
}

.timeline-item .content {
  background: #fff;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.timeline-item h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.2rem;
  color: var(--color-primary);
}

.timeline-item h4 {
  margin: 0 0 var(--space-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

.timeline-item p {
  margin: 0;
  line-height: 1.6;
}

/* Mobile timeline */
@media (max-width: 600px) {
  .timeline {
    padding-left: 20px;
  }

  .timeline::after {
    left: 10px;
  }

  .timeline-item::before {
    left: -6px;
  }
}