/* ===================================================
   Lautan Digital — Developer Portfolio
   https://lautandigital.id
   =================================================== */

/* ===== RESET & TOKENS ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0a0f;
  --bg-card:   #111118;
  --bg-card2:  #16161f;
  --border:    rgba(255,255,255,.07);
  --accent:    #6c63ff;
  --accent2:   #a78bfa;
  --text:      #e2e2f0;
  --text-muted:#8888aa;
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --radius:    14px;
  --radius-sm: 8px;
  --shadow:    0 4px 32px rgba(0,0,0,.5);
  --transition:0.3s cubic-bezier(.4,0,.2,1);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 99px; }

/* ===== CONTAINER ===== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 99px;
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(108,99,255,.35);
}
.btn--primary:hover {
  background: var(--accent2);
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(108,99,255,.5);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent2);
  transform: translateY(-2px);
}
.btn--sm { padding: 8px 18px; font-size: .8rem; }
.btn--full { width: 100%; justify-content: center; }
.btn svg { width: 16px; height: 16px; }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: var(--transition);
}
.nav.scrolled {
  background: rgba(10,10,15,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent2);
  letter-spacing: .04em;
}
.nav__links {
  display: flex;
  gap: 36px;
}
.nav__links a {
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  border-radius: 99px;
  transition: width var(--transition);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__mobile {
  display: none;
  flex-direction: column;
  padding: 16px 24px 20px;
  gap: 16px;
  border-top: 1px solid var(--border);
  background: rgba(10,10,15,.95);
}
.nav__mobile a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav__mobile a:hover { color: var(--accent2); }
.nav__mobile.open { display: flex; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 80px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .18;
}
.hero__glow--1 {
  width: 600px; height: 600px;
  top: -100px; left: -150px;
  background: var(--accent);
}
.hero__glow--2 {
  width: 500px; height: 500px;
  bottom: -80px; right: -100px;
  background: var(--accent2);
}
.hero__content {
  position: relative;
  text-align: center;
  max-width: 760px;
}
.hero__greeting {
  font-family: var(--mono);
  font-size: .9rem;
  color: var(--accent2);
  margin-bottom: 16px;
  letter-spacing: .08em;
}
.hero__name {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.hero__name--accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__role {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 2.2rem;
}
.hero__role-prefix { margin-right: 6px; }
.hero__typewriter {
  color: var(--text);
  font-weight: 600;
}
.hero__cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero__desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.8;
}
.hero__cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero__scroll-hint {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.4;transform:scaleY(1)} 50%{opacity:1;transform:scaleY(1.2)} }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section__header { margin-bottom: 64px; }
.section__tag {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--accent);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.02em;
}

/* reveal animation */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal].visible {
  opacity: 1;
  transform: none;
}

/* ===== ABOUT ===== */
.about { background: var(--bg-card); }
.about__grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 72px;
  align-items: center;
}
.about__image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}
.about__avatar {
  width: 240px; height: 240px;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(108,99,255,.3);
}
.about__avatar-inner {
  font-size: 3rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .04em;
}
.about__badge {
  position: absolute;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow);
}
.about__badge--1 { top: -10px; right: -10px; color: var(--accent2); }
.about__badge--2 { bottom: -10px; left: -10px; color: var(--accent); }
.about__text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: .97rem;
}
.about__text p strong { color: var(--text); }
.about__stats {
  display: flex;
  gap: 40px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.about__stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.about__stat span { color: var(--accent2); font-weight: 700; font-size: 1.3rem; }
.about__stat p { color: var(--text-muted); font-size: .82rem; margin: 4px 0 0; }

/* ===== SKILLS ===== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108,99,255,.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.skill-card:hover { border-color: rgba(108,99,255,.4); transform: translateY(-4px); }
.skill-card:hover::before { opacity: 1; }
.skill-card__icon {
  width: 44px; height: 44px;
  background: rgba(108,99,255,.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent2);
}
.skill-card__icon svg { width: 22px; height: 22px; }
.skill-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.skill-card ul { display: flex; flex-direction: column; gap: 8px; }
.skill-card li {
  font-size: .84rem;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
}
.skill-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  transform: translateY(-50%);
}

/* ===== PROJECTS ===== */
.projects { background: var(--bg-card); }
.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.project-card:hover {
  border-color: rgba(108,99,255,.4);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,.5);
}
.project-card__image {
  height: 220px;
  position: relative;
  overflow: hidden;
}
.project-card__image--1 { background: linear-gradient(135deg, #1a1a3e 0%, #2d1b69 100%); }
.project-card__image--2 { background: linear-gradient(135deg, #0d2137 0%, #0e4d6b 100%); }
.project-card__image--3 { background: linear-gradient(135deg, #1a2e1a 0%, #1e5c1e 100%); }
.project-card__image--4 { background: linear-gradient(135deg, #2e1a1a 0%, #6b1e1e 100%); }
.project-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.project-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,15,.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}
.project-card:hover .project-card__overlay { opacity: 1; }
.project-card__body { padding: 24px 28px; }
.project-card__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.project-card__tags span {
  font-size: .72rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--accent2);
  background: rgba(108,99,255,.1);
  border: 1px solid rgba(108,99,255,.2);
  border-radius: 99px;
  padding: 3px 10px;
}
.project-card__body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.project-card__body p {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== CONTACT ===== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: start;
}
.contact__info p {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: .97rem;
}
.contact__links { display: flex; flex-direction: column; gap: 20px; }
.contact__link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: .9rem;
  transition: color var(--transition);
}
.contact__link svg { width: 18px; height: 18px; flex-shrink: 0; }
.contact__link:hover { color: var(--accent2); }

/* form */
.contact__form { display: flex; flex-direction: column; gap: 20px; }
.form__group { position: relative; }
.form__group input,
.form__group textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: .9rem;
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}
.form__group input:focus,
.form__group textarea:focus { border-color: var(--accent); }
.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--text-muted); }
.form__group label {
  position: absolute;
  top: 14px; left: 16px;
  font-size: .88rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: var(--transition);
  opacity: 0;
}
.form__success {
  display: none;
  color: #4ade80;
  font-size: .85rem;
  text-align: center;
  padding: 10px;
  background: rgba(74,222,128,.08);
  border: 1px solid rgba(74,222,128,.2);
  border-radius: var(--radius-sm);
}
.form__success.show { display: block; }

/* ===== FOOTER ===== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer p { color: var(--text-muted); font-size: .85rem; }
.footer strong { color: var(--accent2); }
.footer__sub { margin-top: 4px; font-size: .78rem; }
.footer__credit {
  color: var(--accent);
  font-weight: 600;
  transition: color var(--transition);
}
.footer__credit:hover { color: var(--accent2); }

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(108,99,255,.4);
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top.visible { opacity: 1; pointer-events: all; transform: none; }
.back-to-top:hover { background: var(--accent2); transform: translateY(-2px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__image-wrap { justify-content: flex-start; }
}
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .projects__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__stats { gap: 24px; }
  .section { padding: 72px 0; }
}
@media (max-width: 480px) {
  .skills__grid { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; align-items: center; }
}