/* ============================================
   NEURALFORGE — AI Development Studio
   Design System: Retro-Futuristic / Volcanic Glass
   ============================================ */

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

:root {
  --bg:        #0D0D0D;
  --bg-2:      #111111;
  --bg-3:      #1A1A1A;
  --bg-4:      #222222;
  --border:    rgba(255,255,255,0.07);
  --border-h:  rgba(255,107,43,0.4);
  --accent:    #FF6B2B;
  --accent-2:  #FFB088;
  --accent-glow: rgba(255,107,43,0.25);
  --text:      #F0EDE8;
  --text-2:    #A09890;
  --text-3:    #6A6460;
  --white:     #FFFFFF;
  --font-head: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --radius:    12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #000; }

/* --- SCROLLBAR --- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h1 { font-size: clamp(3rem, 8vw, 7rem); }
h2 { font-size: clamp(2.2rem, 5vw, 4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 700; }
p { color: var(--text-2); line-height: 1.75; }
a { text-decoration: none; color: inherit; }
em { font-style: normal; color: var(--accent); }

/* --- CONTAINER --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* --- BUTTONS --- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-head); font-size: 0.9rem; font-weight: 700;
  letter-spacing: 0.02em; border-radius: 6px;
  cursor: pointer; border: none; transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 30px var(--accent-glow);
}
.btn--primary:hover {
  background: var(--accent-2);
  box-shadow: 0 0 50px rgba(255,107,43,0.5);
  transform: translateY(-2px);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn--nav {
  background: var(--accent);
  color: #000;
  padding: 0.6rem 1.4rem;
  font-size: 0.85rem;
}
.btn--nav:hover { background: var(--accent-2); }
.btn--full { width: 100%; justify-content: center; }

/* --- SECTION HEADERS --- */
.section-tag {
  display: inline-block;
  font-family: var(--font-head); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1rem;
}
.section-header { margin-bottom: 4rem; }
.section-title { color: var(--text); }

/* --- GRADIENT TEXT --- */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 60%, #fff 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- REVEAL ANIMATION --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}
.nav.scrolled {
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: 1200px; margin: 0 auto; padding: 1.2rem 2rem;
  display: flex; align-items: center; gap: 2rem;
}
.nav__logo {
  font-family: var(--font-head); font-size: 1.2rem; font-weight: 800;
  color: var(--text); display: flex; align-items: center; gap: 0.5rem;
  letter-spacing: -0.02em;
}
.logo-mark { color: var(--accent); font-size: 1.4rem; }
.nav__links {
  display: flex; list-style: none; gap: 2rem; margin-left: auto;
}
.nav__links a {
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 600;
  color: var(--text-2); letter-spacing: 0.02em;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--accent); }
.nav__burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav__burger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}
.nav__mobile {
  display: none; flex-direction: column; gap: 0;
  background: rgba(13,13,13,0.98); border-top: 1px solid var(--border);
  padding: 1rem 2rem 1.5rem;
}
.nav__mobile a {
  font-family: var(--font-head); font-size: 1rem; font-weight: 600;
  color: var(--text-2); padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}
.nav__mobile a:hover { color: var(--accent); }
.nav__mobile .btn--nav { margin-top: 1rem; text-align: center; }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero__canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0.6;
}
.hero__content {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; padding: 8rem 2rem 4rem;
  width: 100%;
}
.hero__tag {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-head); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1.5rem;
  border: 1px solid rgba(255,107,43,0.3);
  padding: 0.4rem 1rem; border-radius: 100px;
  background: rgba(255,107,43,0.05);
}
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(255,107,43,0.4); }
  50% { opacity: 0.8; transform: scale(1.1); box-shadow: 0 0 0 6px rgba(255,107,43,0); }
}
.hero__title {
  max-width: 700px; margin-bottom: 1.5rem;
  color: var(--text);
}
.hero__sub {
  max-width: 520px; font-size: 1.1rem; color: var(--text-2);
  margin-bottom: 2.5rem; line-height: 1.7;
}
.hero__ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Floating stat cards */
.hero__stat {
  position: absolute; z-index: 3;
  background: rgba(26,26,26,0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.6rem;
  transition: var(--transition);
}
.hero__stat:hover { border-color: var(--border-h); transform: translateY(-4px); }
.hero__stat--1 { bottom: 15%; right: 8%; animation: float1 6s ease-in-out infinite; }
.hero__stat--2 { bottom: 30%; right: 22%; animation: float2 7s ease-in-out infinite; }
@keyframes float1 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
@keyframes float2 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.stat-num {
  font-family: var(--font-head); font-size: 2rem; font-weight: 800;
  color: var(--accent); line-height: 1;
}
.stat-label { font-size: 0.75rem; color: var(--text-3); margin-top: 0.3rem; }

/* Scroll hint */
.hero__scroll-hint {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font-family: var(--font-head); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-3);
  z-index: 2;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine { 0%,100%{opacity:1;transform:scaleY(1)} 50%{opacity:0.4;transform:scaleY(0.5)} }

/* ============================================
   MARQUEE
   ============================================ */
.marquee-strip {
  overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--bg-2); padding: 1rem 0;
}
.marquee-track {
  display: flex; align-items: center; gap: 2rem;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  width: max-content;
}
.marquee-track span {
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
  letter-spacing: 0.05em; color: var(--text-3);
}
.marquee-track .dot { color: var(--accent); font-size: 0.5rem; }
@keyframes marquee { from{transform:translateX(0)} to{transform:translateX(-50%)} }

/* ============================================
   SERVICES
   ============================================ */
.services { padding: 8rem 0; }
.services__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5px;
  border: 1.5px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden;
}
.service-card {
  position: relative; padding: 2.5rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  transition: var(--transition);
  overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255,107,43,0.08) 0%, transparent 60%);
  opacity: 0; transition: opacity var(--transition);
}
.service-card:hover { background: var(--bg-3); border-color: var(--border-h); }
.service-card:hover::before { opacity: 1; }
.service-card[data-index]::after {
  content: attr(data-index);
  position: absolute; top: 1.5rem; right: 1.5rem;
  font-family: var(--font-head); font-size: 0.7rem; font-weight: 800;
  color: var(--text-3); letter-spacing: 0.1em;
}
.service-card__icon {
  width: 48px; height: 48px; color: var(--accent);
  margin-bottom: 1.5rem;
}
.service-card__icon svg { width: 100%; height: 100%; }
.service-card h3 { color: var(--text); margin-bottom: 0.75rem; font-size: 1.15rem; }
.service-card p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 1.5rem; }
.service-card__link {
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.02em;
  transition: gap var(--transition);
}
.service-card__link:hover { color: var(--accent-2); }

/* ============================================
   WORK
   ============================================ */
.work { padding: 8rem 0; background: var(--bg-2); }
.work__list { display: flex; flex-direction: column; gap: 2px; }
.work-item {
  display: grid; grid-template-columns: auto 1fr 380px;
  gap: 0; background: var(--bg-3);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: border-color var(--transition);
}
.work-item:hover { border-color: var(--border-h); }
.work-item--reverse { grid-template-columns: auto 1fr 380px; }
.work-item__meta {
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 2.5rem 2rem; border-right: 1px solid var(--border);
  min-width: 160px;
}
.work-tag {
  font-family: var(--font-head); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); background: rgba(255,107,43,0.1);
  padding: 0.3rem 0.7rem; border-radius: 4px;
  border: 1px solid rgba(255,107,43,0.2);
  white-space: nowrap; align-self: flex-start;
}
.work-num {
  font-family: var(--font-head); font-size: 3rem; font-weight: 800;
  color: var(--bg-4); line-height: 1;
}
.work-item__body { padding: 2.5rem; }
.work-item__body h3 { color: var(--text); margin-bottom: 1rem; }
.work-item__body p { font-size: 0.95rem; margin-bottom: 2rem; }
.work-item__stats {
  display: flex; gap: 2.5rem;
}
.work-item__stats div { display: flex; flex-direction: column; gap: 0.2rem; }
.work-item__stats strong {
  font-family: var(--font-head); font-size: 1.6rem; font-weight: 800;
  color: var(--accent); line-height: 1;
}
.work-item__stats span { font-size: 0.75rem; color: var(--text-3); }
.work-item__img {
  position: relative; min-height: 220px;
  display: flex; align-items: flex-end; padding: 1.5rem;
  border-left: 1px solid var(--border);
}
.work-item__glow {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255,107,43,0.15) 0%, transparent 70%);
}
.work-item__label {
  position: relative; z-index: 1;
  font-family: var(--font-head); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3);
}

/* ============================================
   PROCESS
   ============================================ */
.process { padding: 8rem 0; }
.process__steps {
  display: flex; align-items: flex-start; gap: 0;
  position: relative;
}
.process-step {
  flex: 1; padding: 2.5rem 2rem;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); position: relative;
  transition: var(--transition);
}
.process-step:hover { border-color: var(--border-h); background: var(--bg-3); }
.process-step__num {
  font-family: var(--font-head); font-size: 3rem; font-weight: 800;
  color: var(--accent); opacity: 0.3; line-height: 1; margin-bottom: 1rem;
}
.process-step h3 { color: var(--text); margin-bottom: 0.75rem; font-size: 1.1rem; }
.process-step p { font-size: 0.88rem; }
.process-connector {
  width: 40px; flex-shrink: 0; height: 2px;
  background: linear-gradient(to right, var(--accent), transparent);
  margin-top: 3.5rem; opacity: 0.4;
}

/* ============================================
   ABOUT
   ============================================ */
.about { padding: 8rem 0; background: var(--bg-2); }
.about__inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center;
}
.about__text p { margin-bottom: 1.25rem; }
.about__text .btn { margin-top: 1rem; }
.about__numbers {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
  border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden;
}
.about-num {
  padding: 2.5rem 2rem; background: var(--bg-3);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.about-num:hover { background: var(--bg-4); border-color: var(--border-h); }
.about-num__val {
  font-family: var(--font-head); font-size: 3.5rem; font-weight: 800;
  color: var(--accent); line-height: 1; display: inline;
}
.about-num__plus {
  font-family: var(--font-head); font-size: 2rem; font-weight: 800;
  color: var(--accent);
}
.about-num__label {
  display: block; font-size: 0.8rem; color: var(--text-3);
  margin-top: 0.5rem; font-family: var(--font-head);
  font-weight: 600; letter-spacing: 0.05em;
}

/* ============================================
   TECH STACK
   ============================================ */
.tech { padding: 6rem 0; }
.tech__grid {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
}
.tech-badge {
  font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
  padding: 0.6rem 1.2rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg-2);
  color: var(--text-2); letter-spacing: 0.02em;
  transition: var(--transition); cursor: default;
}
.tech-badge:hover {
  border-color: var(--accent); color: var(--accent);
  background: rgba(255,107,43,0.05);
  transform: translateY(-2px);
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials { padding: 8rem 0; background: var(--bg-2); }
.testimonials__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.testimonial-card {
  padding: 2.5rem; background: var(--bg-3);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  position: relative; transition: var(--transition);
}
.testimonial-card:hover { border-color: var(--border-h); transform: translateY(-4px); }
.testimonial-card__quote {
  font-family: var(--font-head); font-size: 4rem; font-weight: 800;
  color: var(--accent); opacity: 0.3; line-height: 0.8;
  margin-bottom: 1rem;
}
.testimonial-card p { font-size: 0.95rem; color: var(--text-2); margin-bottom: 2rem; }
.testimonial-card__author { display: flex; align-items: center; gap: 1rem; }
.author-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-size: 0.8rem; font-weight: 800;
  color: #000; flex-shrink: 0;
}
.testimonial-card__author strong {
  display: block; font-family: var(--font-head); font-size: 0.9rem;
  font-weight: 700; color: var(--text);
}
.testimonial-card__author span { font-size: 0.8rem; color: var(--text-3); }

/* ============================================
   CONTACT
   ============================================ */
.contact { padding: 8rem 0; }
.contact__inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start;
}
.contact__text p { margin-bottom: 1rem; }
.contact__info {
  display: flex; flex-direction: column; gap: 0.5rem; margin-top: 2rem;
}
.contact__info a {
  font-family: var(--font-head); font-size: 1rem; font-weight: 700;
  color: var(--accent); transition: color var(--transition);
}
.contact__info a:hover { color: var(--accent-2); }
.contact__form {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2.5rem;
}
.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block; font-family: var(--font-head); font-size: 0.8rem;
  font-weight: 700; letter-spacing: 0.05em; color: var(--text-2);
  margin-bottom: 0.5rem; text-transform: uppercase;
}
.form-group input, .form-group textarea {
  width: 100%; background: var(--bg-3);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 0.85rem 1rem; color: var(--text);
  font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color var(--transition);
  outline: none; resize: vertical;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-3); }
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255,107,43,0.1);
}
.form-success {
  display: none; margin-top: 1rem; padding: 1rem;
  background: rgba(100,200,100,0.1); border: 1px solid rgba(100,200,100,0.3);
  border-radius: 8px; color: #6dc96d;
  font-family: var(--font-head); font-size: 0.9rem; font-weight: 600;
  text-align: center;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-2); border-top: 1px solid var(--border);
  padding: 5rem 0 2rem;
}
.footer__inner {
  display: grid; grid-template-columns: 1fr 2fr; gap: 4rem;
  margin-bottom: 3rem;
}
.footer__brand .nav__logo { margin-bottom: 1rem; }
.footer__brand p { font-size: 0.9rem; color: var(--text-3); max-width: 260px; }
.footer__links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer__col h4 {
  font-family: var(--font-head); font-size: 0.8rem; font-weight: 800;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text); margin-bottom: 1.25rem;
}
.footer__col a {
  display: block; font-size: 0.88rem; color: var(--text-3);
  margin-bottom: 0.6rem; transition: color var(--transition);
}
.footer__col a:hover { color: var(--accent); }
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 2rem; border-top: 1px solid var(--border);
  font-size: 0.8rem; color: var(--text-3);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .work-item { grid-template-columns: auto 1fr; }
  .work-item__img { display: none; }
  .about__inner { grid-template-columns: 1fr; gap: 3rem; }
  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }
  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .process__steps { flex-direction: column; }
  .process-connector { width: 2px; height: 30px; margin: 0 0 0 2.5rem;
    background: linear-gradient(to bottom, var(--accent), transparent); }
}

@media (max-width: 768px) {
  .nav__links, .nav > .btn--nav { display: none; }
  .nav__burger { display: flex; }
  .nav__mobile.open { display: flex; }
  .services__grid { grid-template-columns: 1fr; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .hero__stat { display: none; }
  .hero__scroll-hint { display: none; }
  .work-item { grid-template-columns: 1fr; }
  .work-item__meta { flex-direction: row; align-items: center; border-right: none; border-bottom: 1px solid var(--border); }
  .work-item__stats { flex-wrap: wrap; gap: 1.5rem; }
  .about__numbers { grid-template-columns: 1fr 1fr; }
  .footer__links { grid-template-columns: 1fr 1fr; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  h1 { font-size: clamp(2.5rem, 10vw, 4rem); }
}

@media (max-width: 480px) {
  .hero__ctas { flex-direction: column; }
  .hero__ctas .btn { width: 100%; justify-content: center; }
  .footer__links { grid-template-columns: 1fr; }
}