/* ============================================================
   Ajit Samuel — Simple Final Preview
   Dark, premium, builder-energy. One page. Refined.
   ============================================================ */

/* ===== Tokens ===== */
:root {
  --bg:        #07080B;
  --bg-2:      #0A0C12;
  --surface:   #0F121A;
  --surface-2: #131724;
  --surface-3: #181D2C;

  --border:        rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text:       #ECEFF6;
  --text-muted: #9AA3B5;
  --text-faint: #5E6678;

  --accent:    #5D8CFF;   /* electric blue */
  --accent-2:  #23D5E8;   /* cyan */
  --accent-3:  #B78CFF;   /* violet */

  --grad-hero:  linear-gradient(120deg, #F4F7FF 0%, #5D8CFF 34%, #23D5E8 62%, #B78CFF 100%);
  --grad-soft:  linear-gradient(180deg, rgba(35,213,232,0.07), transparent 70%);
  --grad-card:  linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0) 60%);
  --grad-ring:  linear-gradient(135deg, rgba(93,140,255,0.62), rgba(35,213,232,0.46), rgba(183,140,255,0.38));

  --radius:    16px;
  --radius-sm: 10px;
  --radius-lg: 24px;

  --container: 1120px;
  --gutter:    clamp(20px, 4vw, 40px);

  --font-sans: 'Satoshi', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;

  --ease:       cubic-bezier(.2, .7, .2, 1);
  --ease-out:   cubic-bezier(.16, 1, .3, 1);
}

/* ===== Reset / base ===== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

::selection { background: rgba(35, 213, 232, 0.24); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ===== Ambient ===== */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.ambient-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 35%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 35%, #000 30%, transparent 75%);
}

.ambient-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.55;
}
.ambient-orb--a {
  width: 560px; height: 560px;
  top: -180px; left: -120px;
  background: radial-gradient(circle, rgba(93,140,255,0.24), transparent 70%);
}
.ambient-orb--b {
  width: 620px; height: 620px;
  top: 40%; right: -200px;
  background: radial-gradient(circle, rgba(35,213,232,0.18), transparent 70%);
}
.ambient-orb--c {
  width: 480px; height: 480px;
  bottom: -160px; left: 30%;
  background: radial-gradient(circle, rgba(183,140,255,0.16), transparent 70%);
}

.ambient-noise {
  position: absolute;
  inset: 0;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.9 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ===== Layout helpers ===== */
.section-head {
  max-width: 720px;
  margin: 0 0 48px 0;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin: 0 0 16px 0;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 16px 0;
  color: var(--text);
}

.section-sub {
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0;
  max-width: 60ch;
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(7,8,11,0.65), rgba(7,8,11,0.3));
  border-bottom: 1px solid transparent;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.nav__mark { color: var(--text); }

.nav__links {
  display: flex;
  gap: 28px;
  font-size: 14.5px;
  color: var(--text-muted);
}
.nav__links a {
  position: relative;
  padding: 4px 2px;
  transition: color .25s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--grad-hero);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }

@media (max-width: 540px) {
  .nav__links { gap: 18px; font-size: 14px; }
  .nav__brand span { display: none; }
}

/* ===== Hero ===== */
.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 96px) var(--gutter) 56px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px 0;
  padding: 7px 14px 7px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255,255,255,0.025);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.eyebrow__dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(93,140,255,0.16);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: 0.55; transform: scale(0.85); }
}

.hero__title {
  font-size: clamp(36px, 5.6vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 24px 0;
  color: var(--text);
  max-width: 18ch;
}

.grad-text {
  background: var(--grad-hero);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  background-size: 200% 200%;
  animation: shift 14s ease-in-out infinite;
}
@keyframes shift {
  0%,100% { background-position: 0% 50%; }
  50%     { background-position: 100% 50%; }
}

.hero__lede {
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0 0 18px 0;
  max-width: 56ch;
}

.hero__signoff {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
  margin: 0;
  padding-top: 6px;
  position: relative;
  display: inline-block;
}
.hero__signoff::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--grad-hero);
  vertical-align: middle;
  margin-right: 12px;
  transform: translateY(-2px);
}

/* ===== Headshot ===== */
.headshot {
  position: relative;
  margin: 0;
  justify-self: end;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1 / 1;
}

.headshot__ring {
  position: absolute;
  inset: -2px;
  border-radius: 26px;
  background: var(--grad-ring);
  filter: blur(0.4px);
  opacity: 0.78;
}

.headshot__glow {
  position: absolute;
  inset: -40px;
  border-radius: 36px;
  background: radial-gradient(circle at 30% 30%, rgba(35,213,232,0.16), transparent 60%),
              radial-gradient(circle at 70% 70%, rgba(93,140,255,0.14), transparent 60%);
  filter: blur(40px);
  opacity: 0.7;
  z-index: -1;
}

.headshot__frame {
  position: absolute;
  inset: 6px;
  border-radius: 20px;
  overflow: hidden;
  background: var(--surface);
  box-shadow:
    0 30px 80px -20px rgba(0,0,0,0.65),
    inset 0 0 0 1px rgba(255,255,255,0.08);
}

.headshot__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.headshot__sheen {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.06) 0%, transparent 35%),
    linear-gradient(0deg, rgba(7,8,11,0.55) 0%, transparent 50%);
  pointer-events: none;
}

.headshot__corner {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1px solid var(--border-strong);
  pointer-events: none;
}
.headshot__corner--tl { top: -8px; left: -8px; border-right: 0; border-bottom: 0; border-top-left-radius: 6px; }
.headshot__corner--tr { top: -8px; right: -8px; border-left:  0; border-bottom: 0; border-top-right-radius: 6px; }
.headshot__corner--bl { bottom: -8px; left: -8px; border-right: 0; border-top:    0; border-bottom-left-radius: 6px; }
.headshot__corner--br { bottom: -8px; right: -8px; border-left:  0; border-top:    0; border-bottom-right-radius: 6px; }

@media (max-width: 880px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .headshot {
    max-width: 320px;
    justify-self: start;
    order: -1;
  }
}

/* ===== Stats ===== */
.stats {
  margin-top: clamp(48px, 6vw, 72px);
  padding: 22px clamp(18px, 3vw, 28px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 2vw, 24px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.025), rgba(255,255,255,0.005));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.stat {
  position: relative;
  padding: 6px 4px;
}
.stat + .stat::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(6px, 1vw, 12px));
  top: 10%;
  bottom: 10%;
  width: 1px;
  background: var(--border);
}

.stat__num {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums lining-nums;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.stat__num--word {
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.01em;
}
.stat__plus {
  background: var(--grad-hero);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  font-weight: 900;
  margin-left: 1px;
}
.stat__suffix {
  font-size: 0.55em;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 4px;
  letter-spacing: 0;
}
.stat__label {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 720px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px 24px;
  }
  .stat + .stat::before { display: none; }
  .stat:nth-child(odd) { border-right: 1px solid var(--border); padding-right: 18px; }
}

/* ===== Systems ===== */
.systems {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(72px, 10vw, 128px) var(--gutter) clamp(48px, 6vw, 72px);
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.card {
  position: relative;
  padding: 28px 28px 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    var(--grad-card),
    linear-gradient(180deg, var(--surface), var(--surface-2));
  overflow: hidden;
  transition: transform .4s var(--ease-out), border-color .4s var(--ease-out), box-shadow .4s var(--ease-out);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--grad-hero);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity .4s var(--ease-out);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-3px);
  border-color: transparent;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.6);
}
.card:hover::before { opacity: 0.75; }

.card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  margin-bottom: 18px;
}

.card__title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 10px 0;
  color: var(--text);
}

.card__body {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 20px 0;
}

.card__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.card__tags li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
}

@media (max-width: 720px) {
  .cards { grid-template-columns: 1fr; }
  .card { padding: 24px 22px 22px; }
}

/* ===== About ===== */
.about {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) var(--gutter);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
  padding: clamp(36px, 5vw, 56px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(111,227,255,0.06), transparent 60%),
    radial-gradient(120% 100% at 100% 100%, rgba(167,139,250,0.06), transparent 60%),
    linear-gradient(180deg, var(--surface), var(--surface-2));
}

.about__lead .section-title { margin-bottom: 0; }

.about__body p {
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0 0 16px 0;
}
.about__body p:last-child { margin-bottom: 0; }

.about__line {
  font-family: var(--font-mono) !important;
  font-size: 13px !important;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text) !important;
  margin-top: 24px !important;
}

@media (max-width: 800px) {
  .about__grid { grid-template-columns: 1fr; }
}

/* ===== Contact ===== */
.contact {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 96px) var(--gutter) clamp(64px, 9vw, 128px);
}

.contact__card {
  position: relative;
  padding: clamp(48px, 7vw, 80px) clamp(28px, 5vw, 56px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    radial-gradient(80% 120% at 50% 0%, rgba(111,227,255,0.10), transparent 60%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
  text-align: center;
  overflow: hidden;
}
.contact__card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(180deg, rgba(111,227,255,0.4), transparent 60%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

.contact__title {
  font-size: clamp(26px, 3.6vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 14px 0 12px 0;
}

.contact__sub {
  font-size: 16px;
  color: var(--text-muted);
  margin: 0 auto 28px;
  max-width: 52ch;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.005em;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  will-change: transform;
}
.btn--primary {
  color: #07080B;
  background: var(--grad-hero);
  background-size: 180% 180%;
  box-shadow:
    0 12px 30px -10px rgba(111,227,255,0.45),
    inset 0 0 0 1px rgba(255,255,255,0.18);
}
.btn--primary:hover {
  transform: translateY(-1px);
  background-position: 100% 50%;
  box-shadow:
    0 18px 40px -12px rgba(111,227,255,0.55),
    inset 0 0 0 1px rgba(255,255,255,0.25);
}
.btn--primary:active { transform: translateY(0); }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  margin-top: 24px;
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.footer__name { color: var(--text-muted); }
.footer__sep  { padding: 0 6px; }

@media (max-width: 540px) {
  .footer__inner { flex-direction: column; gap: 8px; align-items: flex-start; }
}

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