/* ═══════════════════════════════════════════
   PORTFOLIO — Mukhammad Rizki Romadlon
   style.css
═══════════════════════════════════════════ */

/* ── CSS VARIABLES ── */
:root {
  --bg:       #0a0a0f;
  --surface:  #111118;
  --card:     #16161f;
  --border:   rgba(255, 255, 255, 0.07);
  --accent:   #6ee7b7;
  --accent2:  #818cf8;
  --text:     #e8e8f0;
  --muted:    #6b7280;
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --nav-h:    68px;
  --radius:   12px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  overflow-x: hidden;
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; }
button { border: none; background: none; cursor: pointer; }

/* ── NOISE OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
}

/* ── PARTICLES ── */
#particles-js {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── CURSOR GLOW (desktop only) ── */
.cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 231, 183, 0.045) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  transition: left 0.12s, top 0.12s;
}

@media (hover: none) {
  .cursor-glow { display: none; }
}

/* ── WRAPPER ── */
.wrapper {
  position: relative;
  z-index: 2;
}

/* ═══════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
  height: var(--nav-h);
  background: rgba(10, 10, 15, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

nav.scrolled {
  background: rgba(10, 10, 15, 0.95);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--accent);
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── MOBILE NAV OVERLAY ── */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 900;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.3s;
}

.nav-overlay.visible {
  opacity: 1;
}

/* ═══════════════════════════════════════════
   SECTION BASE
═══════════════════════════════════════════ */
section {
  padding: 6rem 5vw;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.73rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}

.section-label.center {
  display: flex;
  justify-content: center;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -1px;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.section-desc {
  color: var(--muted);
  max-width: 560px;
  line-height: 1.85;
  margin-bottom: 3rem;
  font-size: 0.975rem;
}

.section-desc.center-text {
  margin: 0 auto 1rem;
  text-align: center;
}

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 3rem) 5vw 4rem;
  position: relative;
}

.hero-inner {
  max-width: 820px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(110, 231, 183, 0.08);
  border: 1px solid rgba(110, 231, 183, 0.2);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.38rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.8rem;
}

.hero-tag .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 1.4s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -2px;
  color: #fff;
  margin-bottom: 0.7rem;
}

.hero-name .highlight {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-typing {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.55rem);
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 1.5rem;
  min-height: 2.2rem;
}

.hero-typing .typed-cursor {
  color: var(--accent);
}

.hero-desc {
  max-width: 520px;
  color: var(--muted);
  line-height: 1.85;
  font-size: 0.975rem;
  margin-bottom: 2.2rem;
}

.hero-cta {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.7rem;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0f;
}

.btn-primary:hover {
  background: #a7f3d0;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(110, 231, 183, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

/* ── SCROLL INDICATOR ── */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.6;
}

.scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, transparent, var(--muted));
  animation: scrollDown 1.8s ease-in-out infinite;
}

@keyframes scrollDown {
  0%   { transform: scaleY(0); transform-origin: top; }
  49%  { transform: scaleY(1); transform-origin: top; }
  50%  { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ═══════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════ */
#about {
  background: var(--surface);
}

.about-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4rem;
  align-items: center;
}

.about-avatar {
  display: flex;
  justify-content: center;
}

.avatar-box {
  width: 260px;
  height: 260px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(110,231,183,0.07), rgba(129,140,248,0.07));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5.5rem;
  position: relative;
  overflow: visible;
  flex-shrink: 0;
}

.avatar-box::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 24px;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  pointer-events: none;
}

.avatar-badge {
  position: absolute;
  bottom: -14px;
  right: -14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.55rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.info-list {
  list-style: none;
  margin-top: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.info-list li {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
  flex-wrap: wrap;
}

.info-list .label {
  color: var(--muted);
  min-width: 80px;
  flex-shrink: 0;
}

.info-list .value {
  color: var(--text);
}

.value.available {
  color: var(--accent);
}

/* ═══════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════ */
#skills {
  background: var(--bg);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 1rem;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1rem;
  text-align: center;
  transition: all var(--transition);
  cursor: default;
}

.skill-card:hover {
  border-color: rgba(110, 231, 183, 0.3);
  transform: translateY(-4px);
  background: rgba(110, 231, 183, 0.04);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: 0.6rem;
  display: block;
  line-height: 1;
}

.skill-name {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
}

/* ═══════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════ */
#projects {
  background: var(--surface);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.4rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(110, 231, 183, 0.25);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.project-thumb {
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.project-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(110,231,183,0.07), rgba(129,140,248,0.07));
}

.project-body {
  padding: 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-tags {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  background: rgba(110, 231, 183, 0.08);
  color: var(--accent);
  border: 1px solid rgba(110, 231, 183, 0.15);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.45rem;
}

.project-desc {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 1.2rem;
  flex: 1;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  font-size: 0.82rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition);
}

.project-link:hover {
  color: var(--accent);
}

/* ═══════════════════════════════════════════
   EXPERIENCE / TIMELINE
═══════════════════════════════════════════ */
#experience {
  background: var(--bg);
}

.timeline {
  position: relative;
  max-width: 700px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), rgba(110,231,183,0.1));
}

.timeline-item {
  display: flex;
  gap: 1.8rem;
  margin-bottom: 2.2rem;
  position: relative;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--accent);
  flex-shrink: 0;
  margin-top: 4px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 14px rgba(110, 231, 183, 0.35);
}

.timeline-content {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  flex: 1;
  transition: border-color var(--transition);
}

.timeline-content:hover {
  border-color: rgba(110, 231, 183, 0.2);
}

.timeline-date {
  font-size: 0.73rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
}

.timeline-role {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 0.2rem;
}

.timeline-company {
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.timeline-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.75;
}

/* ═══════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════ */
#contact {
  background: var(--surface);
  text-align: center;
}

.contact-inner {
  max-width: 600px;
  margin: 0 auto;
}

.contact-inner .section-title {
  text-align: center;
}

.contact-email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: #fff;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  margin: 1.5rem 0 2.5rem;
  transition: color var(--transition);
  word-break: break-all;
}

.contact-email:hover {
  color: var(--accent);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.875rem;
  transition: all var(--transition);
}

.social-link:hover {
  border-color: rgba(110, 231, 183, 0.3);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer {
  background: var(--bg);
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

footer strong {
  color: var(--accent);
}

/* ═══════════════════════════════════════════
   RESPONSIVE — TABLET (max 1024px)
═══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .about-grid {
    gap: 3rem;
  }

  .avatar-box {
    width: 220px;
    height: 220px;
    font-size: 4.5rem;
  }

  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — MOBILE (max 768px)
═══════════════════════════════════════════ */
@media (max-width: 768px) {

  /* Nav mobile */
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 80vw);
    height: 100dvh;
    background: var(--surface);
    border-left: 1px solid var(--border);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    z-index: 1000;
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 2rem;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1rem;
    letter-spacing: 0.1em;
  }

  .nav-overlay {
    display: block;
  }

  /* Hero mobile */
  #hero {
    padding-top: calc(var(--nav-h) + 2rem);
    padding-bottom: 5rem;
  }

  .hero-name {
    letter-spacing: -1px;
  }

  .scroll-indicator {
    display: none;
  }

  /* About mobile */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .avatar-box {
    width: 200px;
    height: 200px;
    font-size: 4rem;
    margin: 0 auto;
  }

  .avatar-badge {
    bottom: -12px;
    right: -8px;
    font-size: 0.72rem;
    padding: 0.45rem 0.75rem;
  }

  .info-list {
    text-align: left;
    display: inline-flex;
    flex-direction: column;
    width: 100%;
    max-width: 340px;
    margin: 1.5rem auto 0;
  }

  .section-label.center {
    display: inline-flex;
    margin-left: auto;
    margin-right: auto;
    width: fit-content;
  }

  /* Skills mobile */
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
  }

  .skill-card {
    padding: 1.1rem 0.6rem;
  }

  .skill-icon { font-size: 1.6rem; }
  .skill-name { font-size: 0.72rem; }

  /* Projects mobile */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Timeline mobile */
  .timeline::before {
    left: 9px;
  }

  .timeline-item {
    gap: 1.3rem;
  }

  .timeline-dot {
    width: 20px;
    height: 20px;
    margin-top: 5px;
  }

  .timeline-content {
    padding: 1.1rem 1.2rem;
  }

  /* Buttons mobile */
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    width: fit-content;
  }

  /* Section padding */
  section {
    padding: 4rem 5vw;
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (max 480px)
═══════════════════════════════════════════ */
@media (max-width: 480px) {

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-tag {
    font-size: 0.68rem;
    padding: 0.3rem 0.8rem;
  }

  .social-links {
    gap: 0.6rem;
  }

  .social-link {
    padding: 0.55rem 0.9rem;
    font-size: 0.8rem;
  }

  .timeline-item {
    gap: 1rem;
  }

  .timeline-content {
    padding: 1rem;
  }

  .project-thumb {
    height: 140px;
    font-size: 2.8rem;
  }

  .avatar-box {
    width: 180px;
    height: 180px;
    font-size: 3.5rem;
  }
}

/* ═══════════════════════════════════════════
   UTILITY — SMOOTH FONT RENDERING
═══════════════════════════════════════════ */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}