@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

/* ── Design Tokens ─────────────────────────────────────────────── */
:root {
  --bg: #070a13;
  --bg-2: #0c0f1e;
  --surface: #111527;
  --surface-2: #161b30;
  --border: rgba(139, 92, 246, 0.15);
  --border-2: rgba(255, 255, 255, 0.06);

  --text: #eceef8;
  --muted: #8b90b0;
  --faint: #4a4f6e;

  --purple: #8b5cf6;
  --purple-2: #a78bfa;
  --purple-dim: rgba(139, 92, 246, 0.12);
  --indigo: #6366f1;
  --danger: #f87171;
  --success: #34d399;

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
  --glow: 0 0 40px rgba(139, 92, 246, 0.18);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse 60% 40% at 70% -10%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at -10% 80%, rgba(139, 92, 246, 0.07) 0%, transparent 60%);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--purple-2);
  text-decoration: none;
  transition: color 0.2s;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.2;
}

p {
  color: var(--muted);
}

strong {
  color: var(--text);
}

.container {
  width: 92%;
  max-width: 1080px;
  margin: 0 auto;
}

/* ── Skip link ──────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 9999;
  background: var(--surface);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ── Header ─────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 10, 19, 0.75);
  backdrop-filter: blur(14px) saturate(1.5);
  -webkit-backdrop-filter: blur(14px) saturate(1.5);
  border-bottom: 1px solid var(--border-2);
}

.header-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--purple-2), var(--indigo));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-2);
  color: var(--muted);
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.primary-nav ul {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.primary-nav a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.primary-nav a.active,
.primary-nav a:hover {
  color: var(--text);
  background: var(--surface);
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-2);
  color: var(--text);
  background: var(--surface-2);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  color: var(--text);
}

.btn.primary {
  background: linear-gradient(135deg, var(--purple) 0%, var(--indigo) 100%);
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.35);
}

.btn.primary:hover {
  box-shadow: 0 6px 28px rgba(139, 92, 246, 0.5);
}

.btn.ghost {
  background: transparent;
  border-color: var(--border);
}

.btn.ghost:hover {
  background: var(--purple-dim);
  border-color: var(--purple);
}

.btn.small {
  padding: 0.4rem 0.8rem;
  font-size: 0.82rem;
}

.btn.outline {
  background: transparent;
  border-color: rgba(139, 92, 246, 0.4);
  color: var(--purple-2);
}

.btn.outline:hover {
  background: var(--purple-dim);
}

/* ── Hero ────────────────────────────────────────────────────────── */
.hero {
  padding: 5rem 0 3.5rem;
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr 0.7fr;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple-2);
  background: var(--purple-dim);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  margin-bottom: 1.25rem;
}

.hero-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--purple);
  border-radius: 50%;
}

.hero-text h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1.1rem;
  letter-spacing: -0.02em;
}

.hero-text h1 .accent {
  background: linear-gradient(135deg, var(--purple-2), var(--indigo));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-text p {
  font-size: 1.05rem;
  max-width: 52ch;
  margin-bottom: 1.75rem;
}

.cta-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--glow);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-card-title {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.stat {
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  border: 1px solid var(--border-2);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--purple-2);
  line-height: 1;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.hero-stack .tag {
  font-size: 0.78rem;
}

/* ── Section scaffold ────────────────────────────────────────────── */
section {
  padding: 3rem 0;
}

section+section {
  border-top: 1px solid var(--border-2);
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple-2);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.section-body {
  font-size: 1rem;
  max-width: 60ch;
  margin-bottom: 2rem;
}

/* ── Tag ─────────────────────────────────────────────────────────── */
.tag {
  background: var(--surface-2);
  color: var(--muted);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.82rem;
  border: 1px solid var(--border-2);
  font-family: var(--font-body);
  display: inline-block;
}

.tag.purple {
  background: var(--purple-dim);
  color: var(--purple-2);
  border-color: rgba(139, 92, 246, 0.25);
}

/* ── Feature cards ───────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}

.card:hover {
  border-color: var(--border);
  transform: translateY(-3px);
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--purple-dim);
  border: 1px solid rgba(139, 92, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.card p {
  font-size: 0.9rem;
}

/* ── Project cards ───────────────────────────────────────────────── */
.project-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.3s, transform 0.3s;
}

.project-card:hover {
  border-color: var(--border);
  transform: translateY(-3px);
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-status {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.project-status.live {
  background: rgba(52, 211, 153, 0.1);
  color: var(--success);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.project-status.active {
  background: var(--purple-dim);
  color: var(--purple-2);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.project-status.archived {
  background: var(--surface-2);
  color: var(--faint);
  border: 1px solid var(--border-2);
}

.project-card h3 {
  font-size: 1.05rem;
  color: var(--text);
}

.project-card p {
  font-size: 0.9rem;
  flex: 1;
}

.project-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

/* ── Experience ──────────────────────────────────────────────────── */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.exp-card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: grid;
  gap: 0.75rem;
  transition: border-color 0.3s;
}

.exp-card:hover {
  border-color: var(--border);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.exp-role {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.exp-org {
  color: var(--purple-2);
  font-size: 0.9rem;
  font-weight: 500;
}

.exp-period {
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--surface-2);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border-2);
  white-space: nowrap;
}

.exp-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.exp-bullets li {
  font-size: 0.9rem;
  color: var(--muted);
  padding-left: 1.1rem;
  position: relative;
}

.exp-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--purple);
}

/* ── Skills ──────────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.skill-group {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.skill-group-title {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple-2);
  margin-bottom: 0.85rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ── Certs ───────────────────────────────────────────────────────── */
.cert-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.cert-card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transition: border-color 0.3s;
}

.cert-card:hover {
  border-color: var(--border);
}

.cert-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex-shrink: 0;
  background: var(--purple-dim);
  border: 1px solid rgba(139, 92, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.cert-info {
  min-width: 0;
}

.cert-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.cert-issuer {
  font-size: 0.78rem;
  color: var(--muted);
}

/* ── About page ──────────────────────────────────────────────────── */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 3rem;
  align-items: start;
}

.about-intro p {
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ── Contact page ────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.contact-list li span:first-child {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--purple-dim);
  border: 1px solid rgba(139, 92, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Form ────────────────────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 2rem;
}

.form-card h2 {
  margin-bottom: 1.5rem;
}

.form-field {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

input,
textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-2);
  background: var(--bg-2);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.error {
  color: var(--danger);
  font-size: 0.8rem;
  min-height: 1rem;
  display: block;
  margin-top: 0.25rem;
}

.form-status {
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

/* ── Blog ────────────────────────────────────────────────────────── */
.blog-list {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.3s, transform 0.3s;
}

.post-card:hover {
  border-color: var(--border);
  transform: translateY(-3px);
}

.post-tag {
  font-size: 0.75rem;
}

.post-card h2 {
  font-size: 1.05rem;
  color: var(--text);
}

.post-card p {
  font-size: 0.9rem;
  flex: 1;
}

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border-2);
  padding: 1.5rem 0;
  margin-top: 2rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-grid p {
  font-size: 0.85rem;
  color: var(--faint);
}

.social {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.social a {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-2);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.social a:hover {
  color: var(--text);
  border-color: var(--border);
  background: var(--surface);
}

/* ── Reveal animations ───────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Filters ─────────────────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

/* ── Divider utility ─────────────────────────────────────────────── */
.cta-center {
  text-align: center;
  margin-top: 1.5rem;
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .menu-toggle {
    display: inline-block;
  }

  .primary-nav {
    display: none;
  }

  .primary-nav.open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(7, 10, 19, 0.97);
    border-bottom: 1px solid var(--border-2);
    padding: 1rem;
  }

  .primary-nav.open ul {
    flex-direction: column;
    gap: 0.25rem;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 3rem 0 2rem;
  }

  .hero-card {
    display: none;
  }

  .about-intro {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

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

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