/* ==========================================================================
   PORTOFOLIO AKADEMIK & PROFESIONAL — CITRA AZFA JUHAIDA
   Sesuai Panduan Praktik AI & Cloudflare Pages (Pertemuan 16 PKN STAN)
   Aturan Wajib:
   - Satu warna aksen: #0b5fa5 pada latar netral
   - Font sistem murni, tanpa CDN / tanpa unduhan internet
   - Aksesibilitas WCAG AA (kontras >= 4.5:1, touch target >= 44x44px)
   - Responsif 375px hingga 1440px tanpa scroll horizontal
   ========================================================================== */

:root {
  /* Satu Warna Aksen Wajib */
  --accent: #0b5fa5;
  --accent-hover: #084980;
  --accent-light: #e8f1f8;
  --accent-focus: rgba(11, 95, 165, 0.35);

  /* Latar & Netral */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --border-color: #cbd5e1;
  --border-light: #e2e8f0;

  /* Tipografi & Kontras Tinggi (>= 7:1) */
  --text-dark: #0f172a;
  --text-muted: #334155;
  --text-soft: #64748b;
  --text-white: #ffffff;

  /* TODO Highlight */
  --todo-bg: #fffbeb;
  --todo-border: #f59e0b;
  --todo-text: #92400e;

  /* Font Sistem Murni */
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --header-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg-page);
  color: var(--text-dark);
  line-height: 1.6;
  font-size: 1rem;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Aksesibilitas Keyboard Focus */
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* Kontainer Utama */
.container {
  width: 100%;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Header & Navigasi */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  min-height: var(--header-height);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  flex-wrap: wrap;
  gap: 12px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 700;
  font-size: 1.1rem;
  min-height: 44px;
}

.brand-badge {
  background-color: var(--accent);
  color: var(--text-white);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 14px;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}

.nav-link:hover {
  color: var(--accent);
  background-color: var(--accent-light);
}

/* Seksi & Heading */
.section {
  padding-top: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border-light);
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* ==========================================================================
   SEKSI 1: PROFIL
   ========================================================================== */
.hero-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 36px;
  align-items: center;
}

.profile-photo-wrap {
  width: 100%;
  max-width: 240px;
}

.profile-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  background-color: var(--bg-subtle);
  display: block;
}

.hero-main h1 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 6px;
  line-height: 1.2;
}

.hero-position {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.hero-meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 14px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Tombol Standar (Aksesibel min-height 44px) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--text-white);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--accent);
  border-color: var(--accent);
}

.btn-secondary:hover {
  background-color: var(--accent-light);
}

/* ==========================================================================
   SEKSI 2: KEAHLIAN
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
}

.skill-box h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
  border-bottom: 2px solid var(--accent-light);
  padding-bottom: 8px;
}

.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-list li {
  font-size: 0.95rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 16px;
}

.skill-list li::before {
  content: "■";
  color: var(--accent);
  font-size: 0.75rem;
  position: absolute;
  left: 0;
  top: 4px;
}

/* ==========================================================================
   SEKSI 3: PROYEK ANALITIKA DATA
   ========================================================================== */
.projects-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.project-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.project-card-header {
  background-color: var(--accent-light);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.project-card-header h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent);
}

.project-badge {
  background-color: var(--bg-surface);
  color: var(--accent);
  border: 1px solid var(--border-color);
  font-size: 0.825rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
}

.project-card-body {
  padding: 24px;
}

.project-layout-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  align-items: start;
}

.project-info-table {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 10px;
}

.info-item:last-child {
  border-bottom: none;
}

.info-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.info-desc {
  font-size: 0.95rem;
  color: var(--text-dark);
  line-height: 1.55;
}

/* Hasil Terukur Menonjol */
.metric-callout {
  background-color: var(--bg-subtle);
  border: 2px solid var(--accent);
  border-radius: 6px;
  padding: 14px 18px;
  margin: 8px 0;
}

.metric-callout .info-title {
  color: var(--accent);
}

.metric-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent);
  margin-top: 4px;
}

/* Media Tangkapan Layar Proyek */
.project-media-wrap {
  width: 100%;
}

.project-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-subtle);
  display: block;
}

.img-caption {
  font-size: 0.8rem;
  color: var(--text-soft);
  margin-top: 6px;
  text-align: center;
}

/* TODO Marker Badge */
.todo-tag {
  display: inline-block;
  background-color: var(--todo-bg);
  color: var(--todo-text);
  border: 1px dashed var(--todo-border);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 4px;
}

/* ==========================================================================
   SEKSI 4: UNDUHAN CV
   ========================================================================== */
.cv-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-left: 6px solid var(--accent);
  border-radius: 8px;
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.cv-text h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.cv-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   SEKSI 5: KONTAK
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.contact-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
}

.contact-card h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  word-break: break-all;
}

.contact-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* ==========================================================================
   SEKSI 6: PENUTUP (FOOTER)
   ========================================================================== */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.back-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 6px 14px;
  text-decoration: none;
  color: var(--accent);
  font-weight: 700;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.back-top:hover {
  background-color: var(--accent-light);
}

/* ==========================================================================
   RESPONSIF (LEBAR 375px & 1440px)
   ========================================================================== */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .profile-photo-wrap {
    max-width: 180px;
  }

  .project-layout-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 640px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-menu {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .cv-box {
    flex-direction: column;
    align-items: flex-start;
  }

  .cv-box .btn {
    width: 100%;
  }
}