/* ===== Virtisphere — Corporate stylesheet ===== */

:root {
  --navy-900: #0a1628;
  --navy-800: #0f2038;
  --navy-700: #16304f;
  --blue-600: #1d4ed8;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 16px 48px rgba(10, 22, 40, 0.14);
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Manrope", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--slate-700);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { color: var(--navy-900); line-height: 1.15; }

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h1 em { font-style: normal; color: var(--blue-500); }

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h3 { font-size: 1.15rem; font-weight: 700; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue-500);
  margin-bottom: 14px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--blue-500);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover { background: var(--blue-600); transform: translateY(-1px); }

.btn-ghost {
  color: var(--navy-900);
  border: 1.5px solid var(--slate-300);
  background: transparent;
}

.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-500); }

.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-100);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--navy-900);
}

.brand-mark { width: 46px; height: auto; display: block; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.site-nav { display: flex; align-items: center; gap: 30px; }

.site-nav a {
  text-decoration: none;
  color: var(--slate-700);
  font-weight: 500;
  font-size: 0.93rem;
  transition: color 0.2s ease;
}

.site-nav a:hover { color: var(--blue-500); }

.btn-nav { padding: 10px 20px; color: var(--white) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ===== Hero ===== */
.hero {
  background:
    radial-gradient(ellipse 900px 500px at 85% 20%, rgba(59, 130, 246, 0.08), transparent),
    linear-gradient(180deg, var(--slate-50) 0%, var(--white) 100%);
  padding: 96px 0 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.lede {
  font-size: 1.15rem;
  color: var(--slate-500);
  margin: 22px 0 34px;
  max-width: 34em;
}

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

.hero-visual svg { width: 100%; max-width: 420px; display: block; margin: 0 auto; }

/* ===== Capability strip ===== */
.strip {
  background: var(--navy-900);
  padding: 26px 0;
}

.strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.strip-item { display: flex; flex-direction: column; gap: 2px; }

.strip-item strong { color: var(--white); font-size: 0.98rem; }

.strip-item span { color: var(--slate-300); font-size: 0.85rem; }

/* ===== Sections ===== */
.section { padding: 96px 0; }

.section-alt { background: var(--slate-50); }

.section-head { max-width: 640px; margin-bottom: 56px; }

.section-sub { margin-top: 16px; color: var(--slate-500); font-size: 1.05rem; }

/* ===== Cards ===== */
.cards { display: grid; gap: 28px; }

.cards-3 { grid-template-columns: repeat(3, 1fr); }

.cards-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--slate-100);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.card h3 { margin-bottom: 12px; }

.card p { color: var(--slate-500); font-size: 0.95rem; }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.card-icon svg { width: 26px; height: 26px; fill: var(--white); }

.card-list {
  margin-top: 18px;
  padding-left: 0;
  list-style: none;
}

.card-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--slate-700);
}

.card .company-link { margin-top: 18px; }

.card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 7px;
  border-left: 2.5px solid var(--blue-500);
  border-bottom: 2.5px solid var(--blue-500);
  transform: rotate(-45deg);
}

/* ===== Dark section (approach) ===== */
.section-dark {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
}

.section-dark h2, .section-dark h3 { color: var(--white); }

.section-dark .eyebrow { color: var(--blue-400); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.step {
  border-top: 2px solid var(--navy-700);
  padding-top: 24px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-400);
  display: block;
  margin-bottom: 10px;
}

.step h3 { margin-bottom: 10px; }

.step p { color: var(--slate-300); font-size: 0.92rem; }

/* ===== Company cards ===== */
.card-company { position: relative; padding-bottom: 76px; }

.company-link {
  display: inline-block;
  margin-top: 16px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue-500);
  text-decoration: none;
}

.company-link:hover { text-decoration: underline; }

.company-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.company-logo svg { width: 28px; height: 28px; fill: var(--white); }

.company-logo.dovetail { background: linear-gradient(135deg, #0d9488, #0f766e); }

.company-logo.rackstack { background: linear-gradient(135deg, #7c3aed, #5b21b6); }

.company-tag {
  font-weight: 600;
  color: var(--navy-900) !important;
  font-size: 0.88rem !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.company-badge {
  position: absolute;
  bottom: 28px;
  left: 32px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-500);
  background: rgba(37, 99, 235, 0.08);
  padding: 6px 12px;
  border-radius: 999px;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.about-copy p { margin-bottom: 18px; color: var(--slate-500); font-size: 1.02rem; }

/* ===== Contact ===== */
.section-contact {
  background:
    radial-gradient(ellipse 700px 400px at 10% 90%, rgba(59, 130, 246, 0.07), transparent),
    var(--slate-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-detail { margin-top: 32px; display: flex; flex-direction: column; gap: 4px; }

.contact-detail strong {
  color: var(--navy-900);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact-detail a {
  color: var(--blue-500);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
}

.contact-detail a:hover { text-decoration: underline; }

.contact-form {
  background: var(--white);
  border: 1px solid var(--slate-100);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px;
}

.form-row { margin-bottom: 20px; }

.form-row label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--navy-900);
  margin-bottom: 7px;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--slate-300);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--navy-900);
  background: var(--white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-row textarea { resize: vertical; }

.form-note {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--slate-500);
  text-align: center;
}

/* ===== Subpages ===== */
.site-nav a.active { color: var(--blue-500); }

.page-hero {
  background:
    radial-gradient(ellipse 900px 500px at 85% 20%, rgba(59, 130, 246, 0.08), transparent),
    linear-gradient(180deg, var(--slate-50) 0%, var(--white) 100%);
  padding: 80px 0 64px;
}

.page-hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); }

.page-hero .lede { margin-bottom: 0; }

.detail { padding: 72px 0; }

.detail + .detail { border-top: 1px solid var(--slate-100); }

.detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.detail h2 { margin-bottom: 16px; }

.detail p { color: var(--slate-500); margin-bottom: 16px; font-size: 1.02rem; }

.panel {
  background: var(--slate-50);
  border: 1px solid var(--slate-100);
  border-radius: var(--radius);
  padding: 28px 30px;
}

.panel h3 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.quick-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 22px;
  border: 1px solid var(--slate-100);
  border-left: 3px solid var(--blue-500);
  border-radius: 10px;
  background: var(--white);
  text-decoration: none;
  transition: background 0.2s ease, transform 0.15s ease;
}

.quick-card:hover { background: var(--slate-50); transform: translateY(-2px); }

.quick-card strong { color: var(--navy-900); font-size: 0.98rem; }

.quick-card span { color: var(--slate-500); font-size: 0.86rem; }

.cta-band {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
  padding: 76px 0;
  text-align: center;
}

.cta-band h2 { color: var(--white); margin-bottom: 14px; }

.cta-band p { color: var(--slate-300); max-width: 44em; margin: 0 auto 30px; }

/* ===== Streaming channel directory ===== */
.chan-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chan-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--slate-100);
  box-shadow: var(--shadow);
  border-radius: 999px;
  padding: 7px 18px 7px 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-900);
  cursor: default;
  transition: transform 0.25s cubic-bezier(0.34, 1.4, 0.64, 1),
              box-shadow 0.25s ease,
              border-color 0.25s ease;
}

.chan-chip:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 12px 24px rgba(10, 22, 40, 0.13), 0 0 0 3px rgba(37, 99, 235, 0.07);
}

.chan-logo {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  object-fit: contain;
  background: var(--white);
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chan-chip:hover .chan-logo { transform: scale(1.15) rotate(-4deg); }

@media (prefers-reduced-motion: reduce) {
  .chan-chip,
  .chan-logo { transition: none; }
  .chan-chip:hover { transform: none; }
  .chan-chip:hover .chan-logo { transform: none; }
}

.chan-toolbar {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.chan-search {
  flex: 1 1 320px;
  max-width: 420px;
  padding: 13px 16px;
  border: 1.5px solid var(--slate-300);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--navy-900);
  background: var(--white);
}

.chan-search:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.chan-count { font-size: 0.88rem; color: var(--slate-500); font-weight: 500; }

.alpha-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--slate-300);
  margin-bottom: 8px;
}

.alpha-link {
  min-width: 30px;
  text-align: center;
  padding: 5px 8px;
  border-radius: 6px;
  background: var(--white);
  border: 1px solid var(--slate-100);
  color: var(--blue-500);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
}

.alpha-link:hover { background: var(--blue-500); color: var(--white); }

.chan-group { padding-top: 28px; scroll-margin-top: 90px; }

.chan-letter {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--blue-500);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--slate-300);
}

.chan-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 4px 24px;
}

.chan-list li {
  font-size: 0.9rem;
  color: var(--slate-700);
  padding: 5px 0;
}

.chan-note {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--slate-300);
  font-size: 0.82rem;
  color: var(--slate-500);
  max-width: 62em;
}

.chan-empty {
  padding: 32px 0;
  color: var(--slate-500);
  font-size: 0.95rem;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-900);
  color: var(--slate-300);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.brand-footer { color: var(--white); margin-bottom: 16px; }

.footer-brand p { font-size: 0.9rem; max-width: 28em; }

.footer-col { display: flex; flex-direction: column; gap: 10px; }

.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.footer-col a {
  color: var(--slate-300);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid var(--navy-700);
  padding: 22px 24px;
  font-size: 0.85rem;
  color: var(--slate-500);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .cards-3 { grid-template-columns: 1fr; }
  .cards-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .strip-inner { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid, .detail-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .nav-toggle { display: flex; }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--slate-100);
    box-shadow: var(--shadow-lg);
    display: none;
  }

  .site-nav.open { display: flex; }

  .site-nav a { padding: 12px 0; width: 100%; }

  .btn-nav { text-align: center; margin-top: 8px; padding: 13px 20px; }
}

@media (max-width: 560px) {
  .section { padding: 64px 0; }
  .hero { padding: 64px 0 56px; }
  .steps { grid-template-columns: 1fr; }
  .strip-inner { grid-template-columns: 1fr; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; }
}