/* ==========================================================================
   Digital Sauravh — Web Design & Development Studio
   Design concept: architect's blueprint sheet. Deep drafting-table blue,
   linen-white ink, dimension lines and title-block conventions borrowed
   from technical drawings — because that's how we approach a build.
   ========================================================================== */

:root {
  /* Color */
  --bg:        #0F2036;   /* blueprint navy */
  --bg-panel:  #15294419;
  --panel:     #16283F;   /* raised sheet */
  --panel-2:   #1C3350;
  --line:      #35547C;   /* grid / rule lines */
  --line-soft: #24405f;
  --ink:       #EDF2F8;   /* linen white */
  --muted:     #93A8C4;   /* faded blue-grey */
  --accent:    #FF8A3D;   /* drafting-stamp orange */
  --accent-ink:#2B1200;
  --accent-2:  #6FE0C9;   /* cyan tape */
  --danger:    #FF6B6B;
  --ok:        #6FE0C9;

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:    'Space Grotesk', 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 2px;
}

/* ---- Reset ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure { margin: 0; }

/* Blueprint graph-paper backdrop */
body {
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  background-color: var(--bg);
}

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

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

/* ---- Utility ---------------------------------------------------------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.mono { font-family: var(--font-mono); }

.tag {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--accent-2);
  transform: rotate(45deg);
  flex: none;
}

.btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}
.btn:hover { background: var(--accent); color: var(--accent-ink); }
.btn:active { transform: translateY(1px); }

.btn-solid {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-solid:hover { background: var(--ink); border-color: var(--ink); color: var(--bg); }

.btn-ghost {
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--panel-2); color: var(--ink); border-color: var(--line); }

.section {
  padding: clamp(64px, 9vw, 120px) 0;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 600;
  max-width: 20ch;
  letter-spacing: -0.01em;
}

.section-head .lede {
  max-width: 42ch;
  color: var(--muted);
  font-size: 15.5px;
}

.sheet-no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 4px 10px;
  white-space: nowrap;
}

/* ---- Header ------------------------------------------------------------ */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 32, 54, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.logo .mark {
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--accent);
  position: relative;
  flex: none;
}
.logo .mark::before, .logo .mark::after {
  content: "";
  position: absolute;
  background: var(--accent);
}
.logo .mark::before { left: 50%; top: 3px; bottom: 3px; width: 1.5px; transform: translateX(-50%); }
.logo .mark::after { top: 50%; left: 3px; right: 3px; height: 1.5px; transform: translateY(-50%); }
.logo span.dim { color: var(--muted); }

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-links a {
  font-size: 14.5px;
  padding: 8px 14px;
  color: var(--muted);
  border-radius: var(--radius);
  transition: color 150ms ease, background 150ms ease;
}
.nav-links a:hover { color: var(--ink); background: var(--panel-2); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after { content: none; }

.nav-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  position: relative;
  transition: transform 200ms ease, opacity 200ms ease;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---- Hero ------------------------------------------------------------- */
.hero {
  padding: clamp(56px, 10vw, 110px) 0 clamp(56px, 7vw, 96px);
  border-bottom: 1px solid var(--line-soft);
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(38px, 5.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 22px 0 24px;
}
.hero-sub {
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 18.5px);
  max-width: 46ch;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 42px; }

.hero-stats {
  display: flex;
  gap: 36px;
  border-top: 1px solid var(--line-soft);
  padding-top: 24px;
  flex-wrap: wrap;
}
.hero-stats div strong {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
}
.hero-stats div span {
  font-size: 13px;
  color: var(--muted);
  font-family: var(--font-mono);
}

.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; }

/* ---- Marquee strip ------------------------------------------------------ */
.strip {
  border-bottom: 1px solid var(--line-soft);
  padding: 22px 0;
  overflow: hidden;
}
.strip .track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: scroll-x 32s linear infinite;
}
@media (prefers-reduced-motion: reduce) { .strip .track { animation: none; } }
.strip span {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--muted);
  white-space: nowrap;
}
.strip span b { color: var(--ink); font-weight: 500; }
@keyframes scroll-x {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---- Cards / grid -------------------------------------------------------- */
.grid {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg);
  padding: 34px 30px;
  position: relative;
}
.card .idx {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
  display: block;
  margin-bottom: 22px;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
}
.card p { color: var(--muted); font-size: 14.5px; }

.card-icon {
  width: 38px;
  height: 38px;
  margin-bottom: 20px;
}

/* Corner-bracket panel, used for portfolio / testimonial sheets */
.bracket {
  position: relative;
  border: 1px solid var(--line-soft);
  padding: 30px;
}
.bracket::before, .bracket::after,
.bracket .bc::before, .bracket .bc::after { content: none; }
.bracket-corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--accent-2);
}
.bracket-corner.tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.bracket-corner.tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.bracket-corner.bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.bracket-corner.br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* ---- Process list ---------------------------------------------------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.process-step {
  background: var(--bg);
  padding: 32px 26px;
}
.process-step .num {
  font-family: var(--font-mono);
  font-size: 34px;
  color: var(--line);
  display: block;
  margin-bottom: 18px;
}
.process-step h3 { font-family: var(--font-display); font-size: 17px; margin-bottom: 8px; }
.process-step p { color: var(--muted); font-size: 14px; }

/* ---- Portfolio ---------------------------------------------------------- */
.work-item {
  background: var(--bg);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  display: block;
}
.work-thumb {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.work-thumb svg { width: 100%; height: 100%; }
.work-body { padding: 22px 24px 26px; }
.work-body .tag { margin-bottom: 12px; }
.work-body h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 6px; }
.work-body p { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.chiplist { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 3px 8px;
}

/* ---- Testimonials ---------------------------------------------------- */
.quote-card p.q {
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.5;
  margin-bottom: 20px;
}
.quote-card .who { display: flex; align-items: center; gap: 12px; }
.quote-card .avatar {
  width: 36px; height: 36px;
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-2);
  flex: none;
}
.quote-card .who strong { font-size: 14px; display: block; }
.quote-card .who span { font-size: 12.5px; color: var(--muted); }

/* ---- CTA band ---------------------------------------------------------- */
.cta-band {
  padding: clamp(56px, 8vw, 96px) 0;
  text-align: center;
  border-bottom: 1px solid var(--line-soft);
}
.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 600;
  max-width: 18ch;
  margin: 0 auto 28px;
  letter-spacing: -0.015em;
}
.cta-band .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---- Footer ------------------------------------------------------------ */
footer.site {
  padding: 64px 0 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line-soft);
}
.footer-brand p {
  color: var(--muted);
  font-size: 14px;
  max-width: 34ch;
  margin: 16px 0 20px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14.5px; color: var(--ink); opacity: 0.85; }
.footer-col a:hover { color: var(--accent-2); opacity: 1; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 13px;
  color: var(--muted);
  font-family: var(--font-mono);
  flex-wrap: wrap;
  gap: 12px;
}
.social-row { display: flex; gap: 16px; }
.social-row a { color: var(--muted); }
.social-row a:hover { color: var(--accent-2); }

/* ---- Page hero (interior pages) --------------------------------------- */
.page-hero {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--line-soft);
}
.page-hero .tag { margin-bottom: 18px; }
.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(34px, 5vw, 54px);
  letter-spacing: -0.015em;
  max-width: 18ch;
  margin-bottom: 18px;
}
.page-hero p { color: var(--muted); max-width: 56ch; font-size: 16px; }

/* ---- Forms --------------------------------------------------------------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}
.field input, .field select, .field textarea {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  border-radius: var(--radius);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent-2);
}
.field-note { font-size: 12.5px; color: var(--muted); margin-top: -6px; }
.form-status {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 13.5px;
}
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--danger); }

/* ---- Contact info panels ------------------------------------------------ */
.info-panel { padding: 26px; border: 1px solid var(--line-soft); }
.info-panel h4 {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent-2);
  margin-bottom: 10px;
}
.info-panel p, .info-panel a { font-size: 15px; color: var(--ink); }
.info-panel + .info-panel { margin-top: 1px; }

/* ---- Value list (about) ------------------------------------------------- */
.kv {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 18px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}
.kv:last-child { border-bottom: 1px solid var(--line-soft); }
.kv dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}
.kv dd { margin: 0; font-size: 15.5px; }

/* ---- FAQ --------------------------------------------------------------- */
.faq-item { border-top: 1px solid var(--line-soft); }
.faq-item:last-child { border-bottom: 1px solid var(--line-soft); }
.faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--ink);
  text-align: left;
  padding: 22px 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  cursor: pointer;
}
.faq-q .plus { font-family: var(--font-mono); color: var(--accent); font-size: 20px; flex: none; transition: transform 200ms ease; }
.faq-q[aria-expanded="true"] .plus { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 260ms ease;
}
.faq-a p { color: var(--muted); font-size: 14.5px; padding: 0 4px 22px; max-width: 62ch; }

/* ---- Responsive ---------------------------------------------------------- */
@media (max-width: 980px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 420px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: 8px var(--gutter) 20px;
    border-bottom: 1px solid var(--line-soft);
    gap: 2px;
  }
  .nav.open .nav-links a { padding: 12px 8px; border-bottom: 1px solid var(--line-soft); }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .form-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .section-head { align-items: flex-start; }
}