/* ================================================
   Aurora Circuit – Main Styles (Light Mode Fixed)
================================================ */

/* RESET */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* FULL PAGE BACKGROUND IMAGE */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(var(--bg-overlay), var(--bg-overlay)),
    url("../images/sample-image.jpg") no-repeat center center/cover;
}

/* GENERAL */

img { max-width: 100%; }

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

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

.container {
  max-width: var(--container-width);
  padding: 0 var(--space-4);
  margin: auto;
}

/* ================= NAVBAR ================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  backdrop-filter: blur(16px);
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border-soft);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--color-primary-soft), var(--color-primary));
}

.brand-text span {
  color: var(--color-primary);
}

.navbar__links {
  display: flex;
  gap: var(--space-4);
}

.navbar__links a {
  color: var(--color-muted);
  position: relative;
}

.navbar__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: 0.3s;
}

.navbar__links a:hover::after {
  width: 100%;
}

.theme-toggle {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: 50%;
  padding: 8px;
  cursor: pointer;
}

/* ================= HERO ================= */

.hero {
  padding: var(--space-9) 0;
  position: relative;
}

.hero__inner {
  display: grid;
  grid-template-columns: 2fr 1.2fr;
  gap: var(--space-6);
}

.hero__eyebrow {
  text-transform: uppercase;
  color: var(--color-muted);
  letter-spacing: 3px;
  font-size: 0.8rem;
}

.hero__title {
  font-size: 2.8rem;
  line-height: 1.2;
}

.hero__title .accent {
  color: var(--color-primary);
}

.hero__subtitle {
  max-width: 520px;
  color: var(--color-hero-muted);
}

.hero__actions {
  display: flex;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

/* BUTTONS */

.btn {
  padding: 10px 20px;
  border-radius: 999px;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(140deg, var(--color-primary), var(--color-primary-soft));
  color: white;
}

.btn-ghost {
  border: 1px solid var(--color-border-soft);
  background: transparent;
}

/* META BOXES */

.hero__meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.hero__meta-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

/* HERO SIDE */

.hero__sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-soft);
  padding: var(--space-4);
}

.hero-card__list li::before {
  content: "• ";
  color: var(--color-primary);
}

/* SOCIAL BAR IN HERO */

.hero-social {
  background: var(--color-surface-alt);
  border: 1px dashed var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border-soft);
  color: var(--color-text);
  font-size: 0.85rem;
  transition: all 0.25s ease;
}

.social-btn svg {
  width: 16px;
  height: 16px;
  fill: var(--color-primary);
}

.social-btn:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}


/* TAGS */

.tag {
  border-radius: 999px;
  border: 1px solid var(--color-border-soft);
  padding: 5px 12px;
  background: var(--color-tag-bg);
}

/* ================= SECTIONS ================= */

.social-section,
.section,
.section-alt {
  padding: var(--space-8) 0;
  background: transparent;
}

.section-header {
  margin-bottom: var(--space-5);
}

.section-title {
  font-size: 1.8rem;
}

.section-subtitle {
  color: var(--color-muted);
}

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

/* CARDS */

.card {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border-soft);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  transition: 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

/* PROJECTS */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.project-card__year {
  font-size: 0.8rem;
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid var(--color-border-soft);
}

.project-card__links a {
  color: var(--color-primary);
  border-bottom: 1px dashed var(--color-primary);
}

/* CERTIFICATIONS */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

/* ================= FOOTER ================= */

.footer {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border-soft);
  padding: var(--space-7) 0;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer__title {
  font-size: 1.4rem;
}

.footer__text,
.footer__copyright {
  color: var(--color-footer-muted);
  font-size: 0.9rem;
}

/* ================= MOBILE ================= */

@media (max-width: 850px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .skills-grid,
  .projects-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }

  .navbar__links {
    display: none;
  }
}