/* ================================================================
   BIG T TECHNOLOGIES LLC — Corporate Design System
   bigttechnologies.com
   ================================================================ */

:root {
  --navy:          #0f172a;
  --navy-800:      #1e293b;
  --navy-700:      #334155;
  --navy-600:      #475569;
  --accent:        #3b82f6;
  --accent-dark:   #2563eb;
  --accent-light:  #60a5fa;
  --accent-glow:   rgba(59, 130, 246, 0.12);
  --white:         #ffffff;
  --gray-50:       #f8fafc;
  --gray-100:      #f1f5f9;
  --gray-200:      #e2e8f0;
  --gray-400:      #94a3b8;
  --gray-600:      #475569;
  --gray-800:      #1e293b;

  --font-display: Georgia, 'Times New Roman', serif;
  --font-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

  --max-w:        1200px;
  --nav-h:        68px;

  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   20px;

  --shadow-card: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-lift: 0 12px 30px rgba(0,0,0,0.12), 0 4px 10px rgba(0,0,0,0.06);
  --shadow-glow: 0 0 40px rgba(59,130,246,0.22);

  --ease:   cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: var(--nav-h);
  padding: 0.5rem 0;
  transition: background 300ms var(--ease), box-shadow 300ms var(--ease);
}
.nav.scrolled {
  background: rgba(15,23,42,0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--white);
  flex-shrink: 0;
}
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}
.nav-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 150ms;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0; right: 0;
  height: 1px;
  background: var(--accent-light);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms var(--ease);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: transform 250ms, opacity 250ms;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  background-color: var(--navy);
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* animated gradient orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
}
.hero-orb-1 {
  width: 700px; height: 700px;
  top: -200px; left: -150px;
  background: radial-gradient(circle, rgba(59,130,246,0.18) 0%, transparent 70%);
  animation: drift1 18s ease-in-out infinite alternate;
}
.hero-orb-2 {
  width: 500px; height: 500px;
  bottom: -100px; right: -100px;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%);
  animation: drift2 22s ease-in-out infinite alternate;
}
@keyframes drift1 {
  from { transform: translate(0, 0); }
  to   { transform: translate(60px, 40px); }
}
@keyframes drift2 {
  from { transform: translate(0, 0); }
  to   { transform: translate(-40px, -30px); }
}

/* dot grid */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: calc(var(--nav-h) + 5rem) 0 6rem;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.1s var(--ease) forwards;
}
.hero-eyebrow::before {
  content: '';
  width: 28px; height: 1px;
  background: var(--accent-light);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 6.5vw, 5.25rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.08;
  letter-spacing: -0.03em;
  max-width: 15ch;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s var(--ease) forwards;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent-light);
}
.hero-desc {
  color: rgba(255,255,255,0.6);
  font-size: 1.125rem;
  max-width: 52ch;
  line-height: 1.75;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.3s var(--ease) forwards;
}
.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s 0.4s var(--ease) forwards;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.28);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 1;
}
.hero-scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(59,130,246,0.8), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 0.9; transform: scaleY(0.7); }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 220ms var(--ease);
  white-space: nowrap;
  line-height: 1;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(59,130,246,0.38);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.2);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.55);
  background: rgba(255,255,255,0.05);
  transform: translateY(-1px);
}

/* ── Section shared ── */
section { padding: 6rem 0; }
.section-header { margin-bottom: 3.5rem; }
.section-eyebrow {
  display: inline-block;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.section-desc {
  margin-top: 1rem;
  color: var(--gray-600);
  font-size: 1.0625rem;
  max-width: 56ch;
  line-height: 1.75;
}

/* ── Brands ── */
.brands { background: var(--white); }
.brands-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.brand-card {
  position: relative;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-top: 3px solid var(--navy-700);
  border-radius: var(--r-lg);
  padding: 3rem 2.5rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow: hidden;
  transition: transform 380ms var(--ease), box-shadow 380ms var(--ease), border-top-color 380ms var(--ease);
}
.brand-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 55%);
  border-radius: var(--r-lg);
  opacity: 0;
  transition: opacity 380ms var(--ease);
}
.brand-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift), var(--shadow-glow);
  border-top-color: var(--accent);
}
.brand-card:hover::after { opacity: 1; }

.brand-icon {
  width: 60px; height: 60px;
  background: var(--navy);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.brand-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  background: rgba(59,130,246,0.1);
  color: var(--accent);
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
  position: relative;
  z-index: 1;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.025em;
  line-height: 1;
  position: relative;
  z-index: 1;
}
.brand-desc {
  color: var(--gray-600);
  font-size: 0.9375rem;
  line-height: 1.75;
  flex: 1;
  position: relative;
  z-index: 1;
}
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
  transition: gap 200ms var(--ease);
}
.brand-link:hover { gap: 0.625rem; }
.brand-link svg { transition: transform 200ms var(--ease); }
.brand-link:hover svg { transform: translateX(2px); }

/* ── About ── */
.about {
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
}
.about::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(to left, rgba(59,130,246,0.03), transparent);
  pointer-events: none;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: box-shadow 200ms var(--ease), transform 200ms var(--ease);
}
.stat-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateX(4px);
}
.stat-icon {
  width: 46px; height: 46px;
  background: var(--accent-glow);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-label {
  color: var(--gray-400);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-top: 0.2rem;
}
.about-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}
.about-copy p {
  color: var(--gray-600);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.about-pillars {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}
.pillar {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.pillar-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  margin-top: 0.45rem;
  flex-shrink: 0;
}
.pillar p { margin: 0; font-size: 0.9375rem; color: var(--gray-600); line-height: 1.65; }
.pillar strong { color: var(--navy); }

/* ── Contact ── */
.contact {
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 28px 28px;
}
.contact .section-eyebrow { color: var(--accent-light); }
.contact .section-title   { color: var(--white); }
.contact .section-desc    { color: rgba(255,255,255,0.5); }

.contact-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 5rem;
  position: relative;
  z-index: 1;
}

/* form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.form-label {
  color: rgba(255,255,255,0.55);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.form-input,
.form-textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-sm);
  padding: 0.75rem 1rem;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  outline: none;
  width: 100%;
  transition: border-color 150ms, background 150ms;
  -webkit-appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder { color: rgba(255,255,255,0.22); }
.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
  background: rgba(59,130,246,0.07);
}
.form-textarea {
  resize: vertical;
  min-height: 130px;
}
.form-status {
  display: none;
  padding: 0.75rem 1rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  line-height: 1.5;
}
.form-status.success {
  display: block;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  color: #86efac;
}
.form-status.error {
  display: block;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: #fca5a5;
}
.form-submit { align-self: flex-start; margin-top: 0.25rem; }

/* contact info sidebar */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}
.contact-info-heading {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.detail-icon {
  width: 40px; height: 40px;
  background: rgba(59,130,246,0.12);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.detail-label {
  color: rgba(255,255,255,0.4);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.detail-value {
  color: rgba(255,255,255,0.8);
  font-size: 0.9375rem;
  margin-top: 0.2rem;
  line-height: 1.55;
}
.contact-divider {
  height: 1px;
  background: rgba(255,255,255,0.07);
}

/* ── Footer ── */
.footer {
  background: #070c18;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 3.5rem 0 2.5rem;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
}
.footer-brand {}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--white);
  margin-bottom: 0.875rem;
}
.footer-logo-text {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
}
.footer-tagline {
  color: rgba(255,255,255,0.3);
  font-size: 0.8125rem;
  max-width: 28ch;
  line-height: 1.6;
}
.footer-nav {
  display: flex;
  gap: 4rem;
}
.footer-nav-group {}
.footer-nav-title {
  color: rgba(255,255,255,0.45);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-nav-group ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-nav-group a {
  color: rgba(255,255,255,0.38);
  font-size: 0.875rem;
  transition: color 150ms;
}
.footer-nav-group a:hover { color: rgba(255,255,255,0.8); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-copy { color: rgba(255,255,255,0.25); font-size: 0.8rem; }
.footer-legal {
  display: flex;
  gap: 1.5rem;
}
.footer-legal a {
  color: rgba(255,255,255,0.28);
  font-size: 0.8rem;
  transition: color 150ms;
}
.footer-legal a:hover { color: rgba(255,255,255,0.65); }

/* ── Page Hero (legal pages) ── */
.page-hero {
  background: var(--navy);
  padding: calc(var(--nav-h) + 4rem) 0 3.5rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(59,130,246,0.1) 1px, transparent 1px);
  background-size: 28px 28px;
}
.page-hero-inner { position: relative; z-index: 1; }
.page-hero-eyebrow {
  color: var(--accent-light);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.page-hero-meta {
  margin-top: 1rem;
  color: rgba(255,255,255,0.4);
  font-size: 0.875rem;
}

/* ── Legal body ── */
.legal-wrap {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 1.5rem 7rem;
}
.legal-toc {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  padding: 1.5rem 2rem;
  margin-bottom: 3rem;
}
.legal-toc h3 {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1rem;
}
.legal-toc ol {
  list-style: decimal;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.legal-toc a {
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: none;
}
.legal-toc a:hover { text-decoration: underline; }
.legal-wrap h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}
.legal-wrap h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
.legal-wrap p {
  color: var(--gray-600);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.legal-wrap ul, .legal-wrap ol {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--gray-600);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.legal-wrap li { margin-bottom: 0.4rem; }
.legal-wrap a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.legal-wrap strong { color: var(--gray-800); }

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 650ms var(--ease), transform 650ms var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Keyframes ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .brands-grid  { grid-template-columns: 1fr; }
  .about-grid   { grid-template-columns: 1fr; gap: 3rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-top   { flex-direction: column; gap: 2.5rem; }
  .footer-nav   { gap: 2.5rem; flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(15,23,42,0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1.25rem;
    border-top: 1px solid rgba(255,255,255,0.08);
  }
  .nav-links.open { display: flex; }
  .nav-hamburger  { display: flex; }
  .form-row       { grid-template-columns: 1fr; }
  .footer-bottom  { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-legal   { justify-content: center; }
  section         { padding: 4rem 0; }
}