/* ---------- tokens ---------- */
:root{
  --bg: #11131A;
  --bg-alt: #14161F;
  --surface: #1A1D28;
  --surface-2: #20232F;
  --border: #2A2E3C;
  --text: #EDEFF3;
  --text-dim: #9AA0B4;
  --text-faint: #6A7086;
  --accent: #5B6EF5;
  --accent-soft: #5B6EF52a;
  --mint: #31D9A8;

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  --container: 1120px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 34px;
}

*,*::before,*::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.01em;
}

p{ margin: 0; }

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

img{ max-width: 100%; display:block; }

.section-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* subtle grain so flat dark sections don't look like solid vector fills */
.noise{
  position: fixed; inset: 0; pointer-events: none; z-index: 999;
  opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn:active{ transform: translateY(0); }

.btn-primary{
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover{ background: #6c7cf7; }

.btn-outline{
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover{ border-color: var(--accent); }

.btn-ghost{
  padding: 10px 20px;
  border: 1px solid var(--border);
  font-size: 0.88rem;
}
.btn-ghost:hover{ border-color: var(--accent); }

.btn-full{ width: 100%; }

/* ---------- nav ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17,19,26,0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
}
.logo-dot{ color: var(--accent); }

.nav-links{
  display: flex;
  gap: 34px;
}
.nav-links a{
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav-links a:hover{ color: var(--text); }

.nav-cta{ flex-shrink: 0; }

.menu-toggle{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span{
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ---------- hero ---------- */
.hero{
  position: relative;
  padding: 84px 32px 60px;
  overflow: hidden;
}
.hero-inner{
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.kicker{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--mint);
  margin-bottom: 18px;
}

.hero-text h1{
  font-size: clamp(2.3rem, 4.4vw, 3.4rem);
  max-width: 12ch;
}
.hero-text h1 em{
  font-style: normal;
  color: var(--text-dim);
}

.hero-sub{
  margin-top: 22px;
  max-width: 46ch;
  color: var(--text-dim);
  font-size: 1.05rem;
}

.hero-actions{
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.hero-meta{
  display: flex;
  gap: 40px;
  margin-top: 56px;
}
.meta-item{ display: flex; flex-direction: column; gap: 4px; }
.meta-num{
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
}
.meta-label{
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* phone mockup — hero */
.hero-visual{
  position: relative;
  display: flex;
  justify-content: center;
}
.phone-glow{
  position: absolute;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  filter: blur(10px);
  z-index: 0;
}
.phone{
  position: relative;
  z-index: 1;
  width: 260px;
  height: 540px;
  background: #05060a;
  border-radius: 44px;
  padding: 14px;
  border: 1px solid #2E3245;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.7);
}
.phone-notch{
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: #05060a;
  border-radius: 0 0 16px 16px;
  z-index: 3;
}
.phone-screen{
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--surface);
  border-radius: 32px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.app-statusbar{
  display: flex;
  justify-content: space-between;
  padding: 16px 20px 4px;
  font-size: 0.7rem;
  color: var(--text-faint);
  font-family: var(--font-body);
}
.app-topbar{
  padding: 10px 20px 14px;
}
.app-title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}
.app-body{
  flex: 1;
  padding: 4px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: opacity 0.4s ease;
}
.app-tabbar{
  display: flex;
  justify-content: space-around;
  padding: 14px 10px 22px;
  border-top: 1px solid var(--border);
}
.tab i{
  display: block;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: var(--text-faint);
}
.tab-active i{ background: var(--accent); }

/* app "screen state" building blocks, reused by JS-driven states */
.app-card{
  background: var(--surface-2);
  border-radius: 16px;
  padding: 16px;
  border: 1px solid var(--border);
}
.app-card-row{ display: flex; justify-content: space-between; align-items: center; }
.app-pill{
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 600;
}
.app-line{ height: 8px; border-radius: 4px; background: var(--surface-2); }
.app-line.dim{ background: var(--border); }
.app-avatar{
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--mint));
}
.app-ring{
  width: 88px; height: 88px; margin: 6px auto 2px;
  border-radius: 50%;
  background: conic-gradient(var(--mint) 0deg 250deg, var(--border) 250deg 360deg);
  display: flex; align-items: center; justify-content: center;
}
.app-ring::after{
  content: "";
  width: 62px; height: 62px; border-radius: 50%;
  background: var(--surface);
}
.app-bars{
  display: flex; align-items: flex-end; gap: 8px; height: 60px;
}
.app-bars i{
  flex: 1;
  background: var(--accent);
  border-radius: 4px 4px 0 0;
  opacity: 0.85;
}

.scroll-cue{
  position: absolute;
  left: 32px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-faint);
}
.scroll-cue span{
  width: 24px; height: 1px; background: var(--text-faint);
}

/* ---------- about ---------- */
.about{
  padding: 110px 0;
  border-top: 1px solid var(--border);
}
.about-grid{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
}
.about-copy h2{
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  margin-bottom: 24px;
}
.about-copy p{
  color: var(--text-dim);
  max-width: 52ch;
  margin-bottom: 18px;
}

.about-facts{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.about-facts li{
  padding: 22px 0;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.about-facts li:last-child{ border-bottom: 1px solid var(--border); }
.fact-label{
  font-size: 0.82rem;
  color: var(--mint);
  font-weight: 600;
}
.fact-value{
  font-size: 1.02rem;
  color: var(--text);
}

/* ---------- stack ---------- */
.stack{
  padding: 100px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stack-head h2{
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  max-width: 16ch;
}
.stack-head p{
  color: var(--text-dim);
  margin-top: 14px;
  font-size: 1.05rem;
}
.stack-groups{
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stack-group h3{
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-faint);
  margin-bottom: 16px;
}
.tags{
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}
.tag{
  font-size: 0.92rem;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.tag:hover{
  border-color: var(--accent);
  transform: translateX(3px);
}

/* ---------- work ---------- */
.work{ padding: 110px 0; }
.work-grid{
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.work-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.work-card:hover{
  border-color: var(--accent);
  transform: translateY(-4px);
}

.mini-phone{
  align-self: center;
  width: 140px;
  height: 240px;
  background: #05060a;
  border-radius: 24px;
  padding: 8px;
  border: 1px solid #2E3245;
}
.mini-screen{
  width: 100%;
  height: 100%;
  background: var(--surface-2);
  border-radius: 18px;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}
.mini-topbar{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.mini-ring{
  width: 54px; height: 54px; margin: 4px auto;
  border-radius: 50%;
  background: conic-gradient(var(--mint) 0deg 240deg, var(--border) 240deg 360deg);
}
.mini-line{ height: 6px; border-radius: 3px; background: var(--border); }
.mini-line--w60{ width: 60%; }
.mini-line--w40{ width: 40%; }
.mini-line--w80{ width: 80%; }
.mini-bars{
  margin-top: auto;
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 40px;
}
.mini-bars i{
  flex: 1;
  background: var(--accent);
  border-radius: 3px 3px 0 0;
  opacity: 0.85;
}
.mini-card{
  height: 26px;
  border-radius: 8px;
  background: var(--border);
}
.mini-cta{
  margin-top: auto;
  height: 26px;
  border-radius: 8px;
  background: var(--accent);
}
.mini-bubble{
  max-width: 75%;
  height: 20px;
  border-radius: 10px;
  background: var(--border);
}
.mini-bubble--left{ align-self: flex-start; }
.mini-bubble--right{
  align-self: flex-end;
  background: var(--accent);
  width: 60%;
}
.mini-bubble--short{ width: 45%; }

.work-copy h3{
  font-size: 1.25rem;
  margin-bottom: 6px;
}
.work-tag{
  font-size: 0.82rem;
  color: var(--mint);
  font-weight: 600;
  margin-bottom: 12px;
}
.work-copy p{
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.work-link{
  font-size: 0.85rem;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
  padding-top: 14px;
  display: block;
}

.work-note{
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ---------- contact ---------- */
.contact{
  padding: 110px 0 100px;
  border-top: 1px solid var(--border);
}
.contact-inner{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact h2{
  font-size: clamp(1.9rem, 3vw, 2.5rem);
}
.contact-sub{
  margin-top: 18px;
  color: var(--text-dim);
  max-width: 40ch;
  font-size: 1.05rem;
}

.contact-form{
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-row label{
  font-size: 0.85rem;
  color: var(--text-faint);
  font-weight: 600;
}
.form-row input,
.form-row textarea{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.98rem;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus{
  outline: none;
  border-color: var(--accent);
}
.form-note{
  font-size: 0.88rem;
  color: var(--mint);
  min-height: 1.2em;
}

/* ---------- footer ---------- */
.footer{
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-links{
  display: flex;
  gap: 24px;
}
.footer-links a{
  color: var(--text-dim);
  font-size: 0.9rem;
}
.footer-links a:hover{ color: var(--text); }
.footer-copy{
  width: 100%;
  color: var(--text-faint);
  font-size: 0.82rem;
}

/* ---------- focus visibility ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-visual{ order: -1; margin-bottom: 20px; }
  .hero-text h1{ max-width: none; }
  .about-grid{ grid-template-columns: 1fr; gap: 40px; }
  .stack-groups{ grid-template-columns: repeat(2, 1fr); }
  .work-grid{ grid-template-columns: 1fr 1fr; }
  .contact-inner{ grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 700px){
  .nav-links, .nav-cta{ display: none; }
  .menu-toggle{ display: flex; }
  .nav.open .nav-links{
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 20px 32px 28px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
  }
  .hero{ padding-top: 56px; }
  .hero-meta{ gap: 26px; flex-wrap: wrap; }
  .stack-groups{ grid-template-columns: 1fr; }
  .work-grid{ grid-template-columns: 1fr; }
  .phone{ width: 220px; height: 460px; }
}