/* =========================================================================
   Rensy Lomboy — Portfolio  |  dark & techy theme
   ========================================================================= */

:root {
  --bg: #0a0e14;
  --bg-soft: #11161f;
  --panel: #141b26;
  --panel-2: #1a2230;
  --border: #1f2a3a;
  --text: #e6edf3;
  --muted: #8b97a7;
  --dim: #5a6678;
  --accent: #00e5a0;
  --accent-2: #38bdf8;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --danger: #ff6b6b;

  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --maxw: 1080px;
  --radius: 14px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ---- Animated background grid ---- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.25;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}
body::before {
  content: '';
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* ---- Layout helpers ---- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 90px 24px;
  scroll-margin-top: 80px;
}

.section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 36px;
}
.section__index {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.section__title {
  font-family: var(--mono);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.section__slash {
  color: var(--accent);
}

/* =========================================================================
   NAV
   ========================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(10, 14, 20, 0.7);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav.scrolled {
  border-bottom-color: var(--border);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.nav__prompt {
  color: var(--accent);
}
.nav__cursor {
  color: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 26px;
  font-family: var(--mono);
  font-size: 0.9rem;
}
.nav__links a {
  color: var(--muted);
  transition: color 0.2s ease;
  position: relative;
}
.nav__links a:hover {
  color: var(--text);
}
.nav__links a:not(.nav__cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.nav__links a:not(.nav__cta):hover::after {
  width: 100%;
}
.nav__cta {
  border: 1px solid var(--accent);
  color: var(--accent) !important;
  padding: 6px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.nav__cta:hover {
  background: var(--accent);
  color: var(--bg) !important;
  box-shadow: 0 0 20px var(--accent-glow);
}
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: 0.3s ease;
}
.nav__toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 120px 24px 80px;
  min-height: 78vh;
  display: flex;
  align-items: center;
}
.hero__eyebrow {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-soft);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(0, 229, 160, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 229, 160, 0);
  }
}
.hero__name {
  font-size: clamp(2.6rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 22px 0 10px;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__role {
  font-family: var(--mono);
  font-size: clamp(1rem, 2.4vw, 1.4rem);
  color: var(--text);
  margin-bottom: 18px;
}
.hero__role-prompt {
  color: var(--accent);
}
.hero__tagline {
  font-family: var(--mono);
  color: var(--muted);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  min-height: 1.8em;
  margin-bottom: 36px;
}
.hero__tagline::before {
  content: '> ';
  color: var(--accent-2);
}
.hero__tag-cursor {
  display: inline-block;
  width: 9px;
  background: var(--accent);
  margin-left: 2px;
  animation: blink 1.1s steps(1) infinite;
}
.hero__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---- Buttons ---- */
.btn {
  font-family: var(--mono);
  font-size: 0.92rem;
  padding: 12px 24px;
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: all 0.2s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn--primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 500;
}
.btn--primary:hover {
  box-shadow: 0 0 26px var(--accent-glow);
  transform: translateY(-2px);
}
.btn--ghost {
  color: var(--text);
  background: var(--bg-soft);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* =========================================================================
   ABOUT
   ========================================================================= */
.about {
  max-width: 760px;
  font-size: 1.08rem;
  color: var(--muted);
  display: grid;
  gap: 18px;
}
.about p strong {
  color: var(--text);
}
.about__meta {
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--dim);
}
.about__meta span {
  color: var(--accent);
}

/* =========================================================================
   SKILLS
   ========================================================================= */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.skill-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.skill-card h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.skill-card h3::before {
  content: '# ';
  color: var(--dim);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 7px;
  transition: all 0.2s ease;
}
.chip:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

/* =========================================================================
   PROJECTS
   ========================================================================= */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.project-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
}
.project-card:hover::before {
  transform: scaleX(1);
}
.project-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.project-card__icon {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1.2rem;
}
.project-card__link {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 6px;
  transition: all 0.2s ease;
}
.project-card__link:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.project-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.project-card p {
  color: var(--muted);
  font-size: 0.97rem;
  flex: 1;
}
.project-card .chips {
  margin-top: 4px;
}

/* =========================================================================
   EXPERIENCE / TIMELINE
   ========================================================================= */
.timeline {
  position: relative;
  display: grid;
  gap: 8px;
  padding-left: 28px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--accent), transparent);
}
.exp {
  position: relative;
  padding: 18px 0 26px;
}
.exp::before {
  content: '';
  position: absolute;
  left: -27px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
}
.exp__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
}
.exp__role {
  font-size: 1.15rem;
  font-weight: 600;
}
.exp__company {
  color: var(--accent);
}
.exp__period {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--dim);
}
.exp ul {
  list-style: none;
  margin-top: 10px;
  display: grid;
  gap: 7px;
}
.exp li {
  color: var(--muted);
  font-size: 0.97rem;
  padding-left: 20px;
  position: relative;
}
.exp li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* =========================================================================
   CONTACT
   ========================================================================= */
.section--contact {
  text-align: center;
  padding-bottom: 60px;
}
.section--contact .section__head {
  justify-content: center;
}
.contact__lead {
  font-size: clamp(1.3rem, 3.5vw, 2rem);
  font-weight: 600;
  max-width: 600px;
  margin: 0 auto 32px;
  letter-spacing: -0.01em;
}
.contact__links {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 32px 24px;
  font-family: var(--mono);
  font-size: 0.85rem;
}
.footer__dim {
  color: var(--dim);
}

/* =========================================================================
   REVEAL ANIMATION
   ========================================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 720px) {
  .nav__links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px 20px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .nav__links.open {
    transform: translateY(0);
  }
  .nav__links a {
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
  .nav__links a:not(.nav__cta)::after {
    display: none;
  }
  .nav__cta {
    text-align: center;
    margin-top: 12px;
  }
  .nav__toggle {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}