/* ============================================
   Mustard View — Computer Systems Design
   Unique brand stylesheet
   ============================================ */

/* --- Custom Properties --- */
:root {
  --mustard:       #D4A017;
  --mustard-bright:#E8B830;
  --mustard-deep:  #B8890E;
  --mustard-dim:   #9A7410;
  --mustard-ghost: #D4A01718;

  --navy-deep:     #080812;
  --navy:          #0f0f1a;
  --navy-card:     #151525;
  --navy-lift:     #1c1c32;
  --navy-border:   #252540;

  --cream:         #f5f0e8;
  --cream-dim:     #d5cec3;
  --cream-muted:   #a09888;

  --white:         #ffffff;
  --offwhite:      #e8e4dd;
  --gray:          #8a8780;
  --gray-dark:     #5c5955;

  --font-display:  'Georgia', 'Times New Roman', serif;
  --font-body:     'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:     'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;

  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     18px;
  --radius-xl:     28px;

  --shadow-card:   0 2px 12px #00000030;
  --shadow-lift:   0 8px 32px #00000040;
  --shadow-glow:   0 0 60px #D4A01715;

  --transition:    0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  font-size: 17px;
}

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--offwhite);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }

::selection {
  background: var(--mustard);
  color: var(--navy-deep);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.2rem; }

em { font-style: italic; color: var(--mustard); }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mustard);
  margin-bottom: 0.75rem;
}

.section-sub {
  color: var(--gray);
  font-size: 1.05rem;
  max-width: 520px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--mustard);
  color: var(--navy-deep);
}
.btn-primary:hover {
  background: var(--mustard-bright);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--offwhite);
  border: 1.5px solid var(--navy-border);
}
.btn-ghost:hover {
  border-color: var(--mustard);
  color: var(--mustard);
}

.btn-full { width: 100%; justify-content: center; }

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}

.site-header.scrolled {
  background: #0f0f1af2;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--navy-border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  z-index: 101;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  background: var(--mustard);
  color: var(--navy-deep);
  font-size: 0.85rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
  letter-spacing: 0;
}

.logo-text {
  font-size: 1.15rem;
  color: var(--offwhite);
  letter-spacing: -0.01em;
}

/* Nav */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.main-nav a {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray);
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--offwhite);
}

.main-nav a.active {
  background: var(--navy-lift);
}

.nav-divider {
  width: 1px;
  height: 1.2rem;
  background: var(--navy-border);
  margin: 0 0.5rem;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  z-index: 101;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--offwhite);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 6rem 2rem 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--navy-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 20%, transparent 70%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.hero-orb--1 {
  width: 500px;
  height: 500px;
  background: var(--mustard);
  opacity: 0.06;
  top: -10%;
  right: -10%;
}
.hero-orb--2 {
  width: 400px;
  height: 400px;
  background: var(--mustard);
  opacity: 0.04;
  bottom: -5%;
  left: -5%;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 720px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mustard-dim);
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
  color: var(--white);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  translate: -50% 0;
}

.hero-scroll span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid var(--navy-border);
  border-radius: 12px;
  position: relative;
}
.hero-scroll span::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  translate: -50% 0;
  width: 4px;
  height: 8px;
  background: var(--mustard-dim);
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(6px); }
}

/* --- Stats Strip --- */
.stats-strip {
  border-top: 1px solid var(--navy-border);
  border-bottom: 1px solid var(--navy-border);
  background: var(--navy-card);
}

.stats-strip ul {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 2.5rem 2rem;
}

.stats-strip li {
  text-align: center;
  padding: 0.5rem;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.stat-plus,
.stat-symbol {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--mustard);
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--gray);
  margin-top: 0.4rem;
}

/* --- Section shared --- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}
.section-header h2 {
  margin-bottom: 0.75rem;
}
.section-header .section-sub {
  margin: 0 auto;
}

/* --- Services --- */
.services {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mustard), var(--mustard-bright), var(--mustard));
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.service-card:hover {
  border-color: #D4A01740;
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.25rem;
  color: var(--mustard);
}

.service-card h3 {
  margin-bottom: 0.6rem;
  color: var(--white);
}

.service-card p {
  color: var(--gray);
  font-size: 0.93rem;
  line-height: 1.65;
}

/* --- About --- */
.about {
  padding: 6rem 2rem;
  background: var(--navy-card);
  border-top: 1px solid var(--navy-border);
  border-bottom: 1px solid var(--navy-border);
}

.about-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-card {
  width: 200px;
  height: 260px;
  background: var(--navy-lift);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.about-card-inner {
  text-align: center;
  font-family: var(--font-display);
}

.about-card-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gray);
  margin-bottom: 0.25rem;
}

.about-card-year {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--mustard);
  line-height: 1;
}

.about-card-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--navy-border);
  margin: 1rem auto;
}

.about-card-loc {
  display: block;
  font-size: 0.85rem;
  color: var(--gray);
  letter-spacing: 0.06em;
}

.about-dots {
  position: absolute;
  top: 20px;
  left: calc(50% - 40px);
  width: 120px;
  height: 120px;
  background-image: radial-gradient(var(--navy-border) 2px, transparent 2px);
  background-size: 16px 16px;
  z-index: 1;
}

.about-content h2 {
  margin-bottom: 1.25rem;
}

.about-content p {
  color: var(--gray);
  margin-bottom: 1rem;
  font-size: 1rem;
  line-height: 1.75;
}

.about-content strong {
  color: var(--cream);
  font-weight: 600;
}

.about-values {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.value-pill {
  padding: 0.4rem 1rem;
  border: 1px solid var(--navy-border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--cream-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  transition: all var(--transition);
}

.value-pill:hover {
  border-color: var(--mustard);
  color: var(--mustard);
  background: var(--mustard-ghost);
}

/* --- Contact --- */
.contact {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-dark);
  margin-bottom: 0.3rem;
  font-weight: 600;
}

.contact-link {
  font-size: 1.05rem;
  color: var(--offwhite);
  transition: color var(--transition);
}
.contact-link:hover {
  color: var(--mustard);
}

.contact-address {
  font-size: 0.95rem;
  color: var(--gray);
  line-height: 1.65;
}

.contact-text {
  font-size: 0.95rem;
  color: var(--gray);
}

/* Form */
.contact-form {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cream-dim);
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--navy);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-sm);
  color: var(--offwhite);
  font-family: var(--font-body);
  font-size: 0.93rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--mustard);
  box-shadow: 0 0 0 3px var(--mustard-ghost);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #5c595580;
}

.form-note {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.85rem;
  min-height: 1.2em;
}
.form-note.success { color: #4caf50; }
.form-note.error { color: #e57373; }

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--navy-border);
  background: var(--navy-deep);
  padding: 3rem 2rem 2rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--offwhite);
  font-weight: 600;
}

.footer-legal {
  font-size: 0.78rem;
  color: var(--gray);
}

.footer-nav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--gray);
  transition: color var(--transition);
}
.footer-nav a:hover {
  color: var(--mustard);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--gray-dark);
}

/* --- Legal Pages --- */
.page-legal {
  background: var(--navy);
}

.legal-main {
  padding: 7rem 2rem 5rem;
}

.legal-article {
  max-width: 760px;
  margin: 0 auto;
}

.legal-header {
  text-align: center;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--navy-border);
}

.legal-header h1 {
  margin-bottom: 0.5rem;
}

.legal-date {
  font-size: 0.9rem;
  color: var(--gray);
}

.legal-body section {
  margin-bottom: 2.5rem;
}

.legal-body h2 {
  font-size: 1.35rem;
  color: var(--offwhite);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--navy-border);
}

.legal-body p {
  color: var(--gray);
  margin-bottom: 0.75rem;
  line-height: 1.75;
}

.legal-body ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.legal-body li {
  color: var(--gray);
  margin-bottom: 0.35rem;
  line-height: 1.65;
}

.legal-body strong {
  color: var(--cream-dim);
  font-weight: 600;
}

.legal-body dl {
  margin-bottom: 0.75rem;
}

.legal-body dt {
  font-weight: 600;
  color: var(--cream-dim);
  margin-top: 0.6rem;
}

.legal-body dd {
  color: var(--gray);
  margin-left: 1.25rem;
  margin-bottom: 0.35rem;
  line-height: 1.65;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-visual {
    order: -1;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .stats-strip ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 640px) {
  html { font-size: 16px; }

  .mobile-toggle { display: flex; }

  .main-nav {
    position: fixed;
    inset: 0;
    background: #0f0f1af7;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }

  .main-nav.open {
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .main-nav a {
    font-size: 1.2rem;
    padding: 0.75rem 1.5rem;
  }

  .nav-divider {
    width: 3rem;
    height: 1px;
    margin: 0.5rem auto;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero h1 { font-size: 2rem; }

  .stats-strip ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1.5rem 1rem;
  }

  .stat-value { font-size: 2rem; }
}

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