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

:root {
  --bg:          #080b18;
  --bg-1:        #0d1122;
  --bg-2:        #111828;
  --border:      rgba(255,255,255,0.08);
  --border-glow: rgba(99,102,241,0.3);

  --accent:      #6366f1;
  --accent-dim:  rgba(99,102,241,0.15);
  --accent-2:    #06b6d4;
  --accent-3:    #a78bfa;

  --text:        #e8eaf0;
  --text-muted:  #7b82a0;
  --text-dim:    #3d4460;

  --radius:      12px;
  --radius-lg:   20px;
  --radius-full: 999px;

  --font-body:   'Inter', sans-serif;
  --font-head:   'Space Grotesk', sans-serif;

  --transition:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

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

/* ===========================
   TYPOGRAPHY
=========================== */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: 1.2rem; font-weight: 600; }

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 60%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===========================
   REVEAL ANIMATION
=========================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 0 0 0 rgba(99,102,241,0);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99,102,241,0.45);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--border-glow);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* ===========================
   NAV
=========================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8,11,24,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 0.85rem;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-text {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.9rem;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__links a {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.nav__links a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}
.nav__cta {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  border: 1px solid var(--border-glow) !important;
  font-weight: 600 !important;
}
.nav__cta:hover {
  background: rgba(99,102,241,0.25) !important;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===========================
   HERO
=========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 40%, transparent 100%);
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.hero__orb--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,0.35) 0%, transparent 70%);
  top: -200px; left: -100px;
  animation: orb-drift 12s ease-in-out infinite alternate;
}
.hero__orb--2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6,182,212,0.25) 0%, transparent 70%);
  bottom: -100px; right: -50px;
  animation: orb-drift 15s ease-in-out infinite alternate-reverse;
}
.hero__orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(167,139,250,0.2) 0%, transparent 70%);
  top: 40%; left: 55%;
  animation: orb-drift 9s ease-in-out infinite alternate;
}

@keyframes orb-drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, 30px) scale(1.08); }
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
  max-width: 760px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(34,197,94,0.3);
  background: rgba(34,197,94,0.08);
  font-size: 0.85rem;
  color: #4ade80;
  font-weight: 500;
}

.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px #4ade80;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px #4ade80; }
  50% { opacity: 0.6; box-shadow: 0 0 16px #4ade80; }
}

.hero__headline {
  max-width: 720px;
}

.hero__sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 8px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat__num {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat__label { font-size: 0.8rem; color: var(--text-muted); }
.stat__divider {
  width: 1px; height: 40px;
  background: var(--border);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scroll-fade 3s ease-in-out infinite;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
}
@keyframes scroll-fade {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(6px); }
}

/* ===========================
   SECTIONS
=========================== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-glow);
}

.section-desc {
  color: var(--text-muted);
  max-width: 520px;
  font-size: 1.05rem;
  text-align: center;
}

/* ===========================
   SERVICES
=========================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at 0% 0%, rgba(99,102,241,0.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px var(--border-glow);
}
.card:hover::before { opacity: 1; }

.card__icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.card__icon svg { width: 22px; height: 22px; }

.card h3 { color: var(--text); }
.card p  { color: var(--text-muted); font-size: 0.95rem; }

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.card__tags li {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* ===========================
   AI SECTION
=========================== */
.ai-section {
  background: linear-gradient(180deg, transparent, rgba(99,102,241,0.04) 50%, transparent);
}

.ai-section__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.ai-section__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.ai-section__content h2 { margin-bottom: 4px; }
.ai-section__content > p { color: var(--text-muted); font-size: 1.05rem; }

.ai-points {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.ai-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.ai-point__icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.ai-point__icon svg { width: 18px; height: 18px; }
.ai-point > div strong { display: block; font-size: 0.95rem; margin-bottom: 4px; }
.ai-point > div p { color: var(--text-muted); font-size: 0.9rem; margin: 0; }

/* AI VISUAL CARD */
.ai-section__visual {
  position: relative;
}

.ai-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(99,102,241,0.1);
}

.ai-card__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
}
.ai-card__dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.ai-card__dot--red    { background: #ff5f57; }
.ai-card__dot--yellow { background: #febc2e; }
.ai-card__dot--green  { background: #28c840; }
.ai-card__title {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.ai-card__body {
  padding: 24px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  background: #0a0d1a;
}
.code-line { white-space: pre; }
.code-line.indent { padding-left: 20px; }
.c-purple { color: #c792ea; }
.c-blue   { color: #82aaff; }
.c-cyan   { color: #89ddff; }
.c-yellow { color: #ffcb6b; }
.c-green  { color: #c3e88d; }
.code-cursor {
  display: inline-block;
  color: var(--accent);
  animation: blink 1.2s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.ai-card__badges {
  display: flex;
  gap: 8px;
  padding: 16px 24px;
  background: rgba(255,255,255,0.02);
  border-top: 1px solid var(--border);
}

.badge {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 1px solid;
}
.badge--purple { color: #a78bfa; border-color: rgba(167,139,250,0.3); background: rgba(167,139,250,0.1); }
.badge--cyan   { color: #22d3ee; border-color: rgba(34,211,238,0.3); background: rgba(34,211,238,0.1); }
.badge--green  { color: #4ade80; border-color: rgba(74,222,128,0.3); background: rgba(74,222,128,0.1); }

.ai-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.ai-float svg { color: var(--accent); flex-shrink: 0; }
.ai-float--1 {
  top: -18px; right: -24px;
  animation: float1 5s ease-in-out infinite;
}
.ai-float--2 {
  bottom: -18px; left: -24px;
  animation: float2 6s ease-in-out infinite;
}
@keyframes float1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(8px) rotate(-1deg); }
}

/* ===========================
   PROCESS
=========================== */
.process__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 0 16px;
}

.step__num {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
}

.step__content h3 { margin-bottom: 8px; }
.step__content p  { color: var(--text-muted); font-size: 0.9rem; }

.step__connector {
  flex: 0 0 auto;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--border-glow), transparent);
  margin-top: 26px;
  position: relative;
}
.step__connector::after {
  content: '';
  position: absolute;
  right: -4px; top: -4px;
  width: 10px; height: 10px;
  border-top: 2px solid var(--border-glow);
  border-right: 2px solid var(--border-glow);
  transform: rotate(45deg);
}

/* ===========================
   ABOUT
=========================== */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: center;
}

.about__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.about__avatar {
  position: relative;
  width: 160px; height: 160px;
}
.avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  animation: spin 6s linear infinite;
  padding: 3px;
  -webkit-mask: radial-gradient(circle at center, transparent 71px, black 73px);
  mask: radial-gradient(circle at center, transparent 71px, black 73px);
}
@keyframes spin { to { transform: rotate(360deg); } }

.avatar-inner {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--bg-1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.about__tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.about__tech-stack span {
  font-size: 0.78rem;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition);
}
.about__tech-stack span:hover {
  border-color: var(--border-glow);
  color: var(--text);
}

.about__content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.about__content p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.about__values {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 8px;
}
.value {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: var(--bg-1);
  border: 1px solid var(--border);
}
.value strong { font-size: 0.95rem; }
.value span   { font-size: 0.85rem; color: var(--text-muted); }

/* ===========================
   CONTACT
=========================== */
.contact {
  background: linear-gradient(180deg, transparent, rgba(6,182,212,0.03) 50%, transparent);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact__content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact__content h2 { margin-bottom: 4px; }
.contact__content p { color: var(--text-muted); font-size: 1.05rem; }

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-2);
  font-size: 0.95rem;
  transition: gap var(--transition);
}
.contact__link:hover { gap: 14px; }
.contact__link svg { width: 18px; height: 18px; flex-shrink: 0; }

.contact__form {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}
.form-group input,
.form-group textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--border-glow);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

/* ===========================
   FOOTER
=========================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer__copy { font-size: 0.85rem; color: var(--text-dim); }
.footer__tagline { font-size: 0.85rem; color: var(--text-dim); }

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .services__grid {
    grid-template-columns: 1fr;
  }
  .ai-section__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .ai-float { display: none; }
  .about__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about__visual { flex-direction: row; align-items: center; }
  .contact__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .process__steps {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .step { padding: 0; max-width: 340px; }
  .step__connector {
    width: 2px; height: 40px;
    background: linear-gradient(180deg, var(--border-glow), transparent);
  }
  .step__connector::after { display: none; }
}

@media (max-width: 680px) {
  .nav__links {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(8,11,24,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }
  .nav__links.open { display: flex; }
  .nav__links a { padding: 12px 16px; width: 100%; }
  .nav__toggle { display: flex; }

  .hero { padding: 100px 0 60px; }
  .hero__actions { flex-direction: column; }
  .hero__stats { gap: 16px; }
  .stat__divider { display: none; }

  .section { padding: 72px 0; }

  .about__visual { flex-direction: column; }

  .footer__inner { justify-content: center; text-align: center; }
}