/* ============================================================
   Hanif Wira — Portfolio
   Palette: #3b3739 #161a1d #242423 #555555 #b1a8a8
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600&family=Inter:wght@300;400;500&display=swap');

:root {
  --c1: #111111;
  --c2: #203d53;
  --c3: #242423;
  --c4: #666565;
  --c5: #c0c0c0;

  --white-smooth: rgba(255, 255, 255, 0.92);
  --white-dim: rgba(255, 255, 255, 0.5);
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
  color: var(--white-smooth);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* ---------- animated gradient background ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: linear-gradient(
    120deg,
    var(--c2) 0%,
    var(--c1) 22%,
    var(--c3) 45%,
    var(--c4) 68%,
    var(--c5) 88%,
    var(--c2) 100%
  );
  background-size: 320% 320%;
  animation: driftGradient 26s ease-in-out infinite;
}

/* fine grain texture overlay, keeps the flat gradient from looking sterile */
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes driftGradient {
  0%   { background-position: 0% 30%; }
  50%  { background-position: 100% 70%; }
  100% { background-position: 0% 30%; }
}

@media (prefers-reduced-motion: reduce) {
  .bg { animation: none; background-position: 30% 40%; }
}

/* ---------- navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 40px;
  background: transparent;
}
 
.nav-left {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-logo {
  display: flex;
  align-items: center;
  opacity: 0.92;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-logo img {
  height: 36px;
  width: 36px;
  border-radius: 8px;
  display: block;
  object-fit: cover;
}

.nav-logo:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.nav-link {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white-smooth);
  text-decoration: none;
  position: relative;
  -webkit-font-smoothing: antialiased;
  transition: color 0.3s ease, opacity 0.3s ease;
  opacity: 0.82;
}
 
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 1px;
  background: var(--white-smooth);
  transition: width 0.35s ease;
}
 
.nav-link:hover,
.nav-link.active {
  opacity: 1;
}
 
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
 
.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.82;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
 
.nav-icon svg {
  width: 18px;
  height: 18px;
  fill: var(--white-smooth);
  display: block;
}
 
.nav-icon:hover {
  opacity: 1;
  transform: translateY(-1px);
}

/* ---------- home page ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  text-align: center;
  position: relative;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  animation: riseIn 1.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); letter-spacing: 0.02em; }
  to   { opacity: 1; transform: translateY(0); }
}

.eyebrow {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--c5);
  opacity: 0.85;
}

.name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: clamp(2.5rem, 8vw, 3.4rem);
  letter-spacing: -0.01em;
  line-height: 1.02;
  color: var(--white-smooth);
}

.name .accent {
  font-weight: 300;
  color: var(--c5);
}

.role {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  letter-spacing: 0.02em;
  color: var(--white-dim);
  max-width: 480px;
}

.hero-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white-dim);
  text-decoration: none;
  opacity: 0.6;
  animation: pulseHint 2.4s ease-in-out infinite;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.hero-hint:hover {
  opacity: 1;
}

@keyframes pulseHint {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 0.75; }
}

/* ---------- portfolio section (single page) ---------- */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 140px 24px 100px;
  text-align: center;
  scroll-margin-top: 20px;
}

.page-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--c5);
  opacity: 0.85;
  margin-bottom: 14px;
}

.page-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 3.4rem);
  margin-bottom: 16px;
}

.page-sub1 {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 1rem;
  color: var(--white-dim);
  max-width: 460px;
  margin-bottom: 56px;
  line-height: 1.6;
}

.page-sub2 {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 1rem;
  color: var(--white-smooth);
  max-width: 460px;
  margin-bottom: 10px;
  line-height: 1.6;
}

.links-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 100%;
  max-width: 780px;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  width: 100%;
}

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  border: 1px solid rgba(177, 168, 168, 0.28);
  border-radius: 2px;
  background: rgba(22, 26, 29, 0.25);
  backdrop-filter: blur(6px);
  text-decoration: none;
  color: var(--white-smooth);
  transition: border-color 0.35s ease, background 0.35s ease, transform 0.35s ease;
}

.project-grid .link-card {
  height: 100%;
  align-items: flex-start;
  text-align: left;
}

@media (max-width: 640px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

.link-card:hover {
  border-color: rgba(255, 255, 255, 0.65);
  background: rgba(22, 26, 29, 0.4);
  transform: translateY(-2px);
}

.link-card-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.link-card-label {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}

.link-card-sub {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 0.78rem;
  color: var(--white-dim);
  letter-spacing: 0.04em;
}

.link-card-arrow {
  font-size: 1.1rem;
  color: var(--c5);
  transition: transform 0.35s ease;
}

.link-card:hover .link-card-arrow {
  transform: translateX(4px);
}

@media (max-width: 560px) {
  .navbar { padding: 22px 20px; }
  .nav-left { gap: 20px; }
  .nav-link { font-size: 0.8rem; }
}