/* ============================================================
   style.css — Kerangka gaya portofolio Nata
   (placeholder; akan diperhalus pada tahap gaya)
   ============================================================ */

/* --- Variabel & Reset --- */
:root {
  --warna-utama:      #2563eb;
  --warna-aksen:      #1e40af;
  --warna-latar:      #f8fafc;
  --warna-permukaan:  #ffffff;
  --warna-teks:       #1e293b;
  --warna-teks-redup: #64748b;
  --warna-batas:      #e2e8f0;
  --warna-tag:        #dbeafe;
  --warna-tag-teks:   #1d4ed8;

  --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius:    0.5rem;
  --bayangan:  0 1px 3px 0 rgb(0 0 0 / 0.10), 0 1px 2px -1px rgb(0 0 0 / 0.10);
  --transisi:  0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--warna-latar);
  color: var(--warna-teks);
  line-height: 1.7;
}

img { max-width: 100%; display: block; }
a { color: var(--warna-utama); text-decoration: none; }
a:hover { text-decoration: underline; }
ul[role="list"] { list-style: none; }

/* --- Kontainer --- */
.container {
  max-width: 960px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ============================================================
   NAVIGASI
   ============================================================ */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--warna-permukaan);
  border-bottom: 1px solid var(--warna-batas);
}

nav {
  max-width: 960px;
  margin-inline: auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--warna-utama);
  letter-spacing: -0.02em;
  text-decoration: none;
}

nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  flex-wrap: wrap;
}

nav ul a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--warna-teks);
  transition: color var(--transisi);
}
nav ul a:hover { color: var(--warna-utama); text-decoration: none; }

/* ============================================================
   SEKSI UMUM
   ============================================================ */
section {
  padding-block: 4rem;
}
section:nth-child(even) {
  background: var(--warna-permukaan);
}

h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
h2::after {
  content: "";
  display: block;
  margin-top: 0.4rem;
  width: 2.5rem;
  height: 3px;
  background: var(--warna-utama);
  border-radius: 2px;
}

.deskripsi-seksi {
  color: var(--warna-teks-redup);
  margin-bottom: 2rem;
  max-width: 60ch;
}

/* ============================================================
   SEKSI 1 — PROFIL
   ============================================================ */
#profil {
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 60%);
  padding-block: 5rem;
}

.seksi-profil {
  display: flex;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.foto-profil {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--warna-utama);
  background: var(--warna-batas);  /* placeholder saat foto belum ada */
  flex-shrink: 0;
}

.profil-teks { flex: 1; min-width: 260px; }

.label-prodi {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--warna-utama);
  margin-bottom: 0.5rem;
}

h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.tagline {
  font-size: 1rem;
  color: var(--warna-teks-redup);
  margin-bottom: 1rem;
}

.bio {
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  max-width: 60ch;
}

.profil-aksi {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tombol-utama,
.tombol-sekunder {
  display: inline-block;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  transition: opacity var(--transisi), transform var(--transisi);
  text-decoration: none;
}
.tombol-utama {
  background: var(--warna-utama);
  color: #fff;
}
.tombol-sekunder {
  border: 2px solid var(--warna-utama);
  color: var(--warna-utama);
}
.tombol-utama:hover,
.tombol-sekunder:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  text-decoration: none;
}

/* ============================================================
   SEKSI 2 — KEAHLIAN
   ============================================================ */
.grid-keahlian {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.kartu-keahlian {
  background: var(--warna-latar);
  border: 1px solid var(--warna-batas);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--bayangan);
}

.kartu-keahlian h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--warna-utama);
}

.kartu-keahlian li {
  font-size: 0.88rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--warna-batas);
  color: var(--warna-teks);
}
.kartu-keahlian li:last-child { border-bottom: none; }

/* ============================================================
   SEKSI 3 — PROYEK
   ============================================================ */
.grid-proyek {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.kartu-proyek {
  display: flex;
  flex-direction: column;
  background: var(--warna-permukaan);
  border: 1px solid var(--warna-batas);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--bayangan);
  transition: box-shadow var(--transisi), transform var(--transisi);
}
.kartu-proyek:hover {
  box-shadow: 0 4px 12px rgb(0 0 0 / 0.12);
  transform: translateY(-2px);
}

.kartu-proyek__kepala {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.kartu-proyek__periode {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--warna-utama);
  background: var(--warna-tag);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}
.kartu-proyek__peran {
  font-size: 0.75rem;
  color: var(--warna-teks-redup);
}

.kartu-proyek__judul {
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  flex: 1;
}

.kartu-proyek__ringkasan {
  font-size: 0.85rem;
  color: var(--warna-teks-redup);
  margin-bottom: 1rem;
  flex: 1;
}

.kartu-proyek__kaki {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.tag {
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--warna-tag);
  color: var(--warna-tag-teks);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

/* ============================================================
   SEKSI 4 — UNDUH CV
   ============================================================ */
#unduh-cv { text-align: center; }

.seksi-unduh h2::after { margin-inline: auto; }
.seksi-unduh p { color: var(--warna-teks-redup); margin-bottom: 1.5rem; max-width: 50ch; margin-inline: auto; }

.tombol-unduh {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--warna-utama);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  transition: background var(--transisi), transform var(--transisi);
  text-decoration: none;
}
.tombol-unduh:hover {
  background: var(--warna-aksen);
  transform: translateY(-2px);
  text-decoration: none;
}

/* ============================================================
   SEKSI 5 — KONTAK
   ============================================================ */
.daftar-kontak {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 480px;
}

.daftar-kontak li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  flex-wrap: wrap;
}

.kontak-label {
  font-weight: 700;
  min-width: 6rem;
  font-size: 0.9rem;
}

.kontak-belum-tersedia {
  color: var(--warna-teks-redup);
  font-style: italic;
  font-size: 0.88rem;
}

/* ============================================================
   SEKSI 6 — PENUTUP / FOOTER
   ============================================================ */
footer#penutup {
  background: var(--warna-teks);
  color: #e2e8f0;
  padding-block: 2.5rem;
  text-align: center;
}

.penutup-kalimat {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.hak-cipta {
  color: #94a3b8;
  font-size: 0.82rem;
}

/* ============================================================
   RESPONSIF DASAR
   ============================================================ */
@media (max-width: 600px) {
  .seksi-profil { flex-direction: column; text-align: center; }
  .profil-aksi { justify-content: center; }
  .foto-profil { width: 130px; height: 130px; }
}