/* ============================================================
   Desic Design — Main Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- Custom Properties ------------------------------------ */
:root {
  /* Background layers */
  --bg-deep:      #060b0d;
  --bg-base:      #0b1416;
  --bg-surface:   #121d21;
  --bg-elevated:  #192830;

  /* Borders */
  --border:       #1e2f38;
  --border-light: #152028;

  /* Accent — dark teal */
  --accent:            #0abdb5;
  --accent-dim:        #089990;
  --accent-muted:      #056862;
  --accent-glow:       rgba(10, 189, 181, 0.09);
  --accent-glow-strong:rgba(10, 189, 181, 0.18);

  /* Logo-derived dark accents */
  --color-orange: #c0540a;
  --color-green:  #1a7a42;
  --color-purple: #5c2e8a;
  --color-amber:  #967200;
  --color-blue:   #0d4e6e;
  --color-red:    #8b1f2a;

  /* Text */
  --text-primary:   #dde8ed;
  --text-secondary: #7899ac;
  --text-muted:     #3d5a6a;

  /* Type */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --sp-xs:  0.25rem;
  --sp-sm:  0.5rem;
  --sp-md:  1rem;
  --sp-lg:  1.5rem;
  --sp-xl:  2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4.5rem;
  --sp-4xl: 6rem;

  /* Layout */
  --max-w:    1200px;
  --nav-h:    68px;

  /* Radii */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;

  /* Transitions */
  --t:      180ms ease;
  --t-slow: 400ms ease;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ---- Layout ---------------------------------------------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-xl);
}

.section       { padding: var(--sp-4xl) 0; }
.section--alt  { background: var(--bg-base); }

/* ---- Typography ------------------------------------------ */
h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); }
h4 { font-size: 1.1rem; }

p { color: var(--text-secondary); }

.label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-sm);
}

.section-header { margin-bottom: var(--sp-3xl); }
.section-header h2 { margin-bottom: var(--sp-md); }
.section-header p { max-width: 580px; font-size: 1.1rem; }

/* ---- Scroll Reveal --------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-reveal="d1"] { transition-delay: 0.05s; }
[data-reveal="d2"] { transition-delay: 0.12s; }
[data-reveal="d3"] { transition-delay: 0.19s; }
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Navigation ------------------------------------------ */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(6, 11, 13, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  transition: background var(--t), border-color var(--t);
}

.site-header.scrolled {
  background: rgba(6, 11, 13, 0.96);
  border-bottom-color: var(--border);
}

.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-xl);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; align-items: center; }

.wordmark {
  height: 30px;
  width: auto;
  /* invert + tint toward accent for visibility on dark bg */
  filter: brightness(0) invert(1) opacity(0.9);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  transition: color var(--t);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--t);
}

.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1.1rem;
  background: var(--accent);
  color: var(--bg-deep) !important;
  border-radius: var(--r-sm);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: background var(--t);
}

.nav-cta:hover { background: var(--accent-dim); }
.nav-cta::after { display: none !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-sm);
}

.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t), width var(--t);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Buttons --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: 0.7rem 1.6rem;
  border-radius: var(--r-sm);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: all var(--t);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--accent-glow-strong);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-muted);
}

.btn-outline:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ---- Hero ------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 10%; left: 60%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(10,189,181,0.055) 0%, transparent 65%);
  pointer-events: none;
  transform: translateX(-50%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4xl);
  align-items: center;
  padding: var(--sp-4xl) 0;
}

.hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-md);
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--accent);
}

.hero-tagline {
  font-size: clamp(3rem, 5.5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--text-primary);
  margin-bottom: var(--sp-lg);
}

.hero-tagline .accent { color: var(--accent); }

.hero-description {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--sp-2xl);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo-wrap {
  position: relative;
  width: 300px; height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo-wrap::before {
  content: '';
  position: absolute;
  inset: -30px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(10,189,181,0.10) 0%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
}

.hero-logo {
  width: 260px;
  height: auto;
  animation: float 7s ease-in-out infinite;
  position: relative;
  z-index: 1;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-14px); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.05); }
}

/* ---- Home: Services Cards -------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-lg);
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-2xl);
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--card-accent, var(--accent));
  opacity: 0.65;
  transition: opacity var(--t);
}

.service-card:hover {
  border-color: var(--card-accent, var(--accent));
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}

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

.service-card--teal   { --card-accent: var(--accent); }
.service-card--orange { --card-accent: #d45f0a; }
.service-card--purple { --card-accent: #7c3aed; }

.service-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-lg);
}

.service-card--orange .service-icon { background: rgba(212, 95, 10, 0.12); }
.service-card--purple .service-icon { background: rgba(124, 58, 237, 0.12); }

.service-icon svg { width: 22px; height: 22px; }

.service-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--sp-md);
}

.service-card p { font-size: 0.94rem; line-height: 1.7; }

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--sp-lg);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
  transition: gap var(--t);
}

.service-card-link:hover { gap: 10px; }

/* ---- Home: Principles ------------------------------------ */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.principle-item {
  background: var(--bg-surface);
  padding: var(--sp-2xl) var(--sp-2xl);
  transition: background var(--t);
}

.principle-item:hover { background: var(--bg-elevated); }

.principle-number {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.05em;
  line-height: 1;
  margin-bottom: var(--sp-md);
  opacity: 0.35;
}

.principle-item h4 {
  color: var(--text-primary);
  margin-bottom: var(--sp-sm);
  font-size: 1rem;
}

.principle-item p { font-size: 0.9rem; line-height: 1.65; }

/* ---- CTA Band -------------------------------------------- */
.cta-band {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--sp-4xl) 0;
  text-align: center;
}

.cta-band h2 { margin-bottom: var(--sp-md); }
.cta-band p  { margin-bottom: var(--sp-2xl); font-size: 1.1rem; max-width: 540px; margin-left: auto; margin-right: auto; }

/* ---- Page Hero (inner pages) ----------------------------- */
.page-hero {
  padding: calc(var(--nav-h) + var(--sp-4xl)) 0 var(--sp-3xl);
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
}

.page-hero h1 {
  color: var(--text-primary);
  margin-bottom: var(--sp-lg);
}

.page-hero-lead {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.75;
}

/* ---- About: Two Column ----------------------------------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4xl);
  align-items: start;
}

.prose h3 {
  color: var(--text-primary);
  margin-bottom: var(--sp-md);
  margin-top: var(--sp-2xl);
}

.prose h3:first-child { margin-top: 0; }

.prose p {
  line-height: 1.8;
  margin-bottom: var(--sp-md);
  font-size: 0.975rem;
}

/* ---- About: Values --------------------------------------- */
.values-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.value-item {
  display: flex;
  gap: var(--sp-lg);
  align-items: flex-start;
  padding: var(--sp-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color var(--t), transform var(--t);
}

.value-item:hover {
  border-color: var(--accent-muted);
  transform: translateX(4px);
}

.value-marker {
  width: 2px;
  align-self: stretch;
  border-radius: 2px;
  background: var(--vm-color, var(--accent));
  flex-shrink: 0;
}

.value-item--teal   { --vm-color: var(--accent); }
.value-item--orange { --vm-color: #d45f0a; }
.value-item--purple { --vm-color: #7c3aed; }
.value-item--green  { --vm-color: #1a8c49; }

.value-item h4 {
  color: var(--text-primary);
  margin-bottom: var(--sp-xs);
  font-size: 0.975rem;
}

.value-item p { font-size: 0.9rem; line-height: 1.65; }

/* ---- Services Page --------------------------------------- */
.services-detail-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xl);
}

.service-detail-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-3xl);
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--sp-3xl);
  align-items: start;
  position: relative;
  overflow: hidden;
  transition: border-color var(--t), transform var(--t);
}

.service-detail-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 3px;
  background: var(--card-accent, var(--accent));
  transition: width var(--t);
}

.service-detail-card:hover {
  border-color: var(--card-accent, var(--accent));
  transform: translateY(-3px);
}

.service-detail-card--teal   { --card-accent: var(--accent); }
.service-detail-card--orange { --card-accent: #d45f0a; }
.service-detail-card--purple { --card-accent: #7c3aed; }

.service-detail-meta .label {
  color: var(--card-accent, var(--accent));
}

.service-detail-meta h3 {
  color: var(--text-primary);
  margin: var(--sp-sm) 0 var(--sp-md);
}

.service-detail-meta p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.service-detail-body p {
  line-height: 1.8;
  margin-bottom: var(--sp-md);
  font-size: 1rem;
}

.service-detail-body p:last-of-type { margin-bottom: 0; }

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  margin-top: var(--sp-lg);
}

.tech-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  transition: border-color var(--t), color var(--t);
}

.tech-tag:hover {
  border-color: var(--accent-muted);
  color: var(--accent);
}

/* ---- Contact Page ---------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--sp-4xl);
  align-items: start;
}

.contact-info-block h3 {
  color: var(--text-primary);
  margin-bottom: var(--sp-md);
}

.contact-info-block p {
  line-height: 1.8;
  margin-bottom: var(--sp-xl);
  font-size: 0.95rem;
}

.contact-detail-item {
  padding: var(--sp-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  margin-bottom: var(--sp-md);
}

.contact-detail-item .label { margin-bottom: var(--sp-xs); }
.contact-detail-item p { font-size: 0.9rem; color: var(--text-secondary); }

/* ---- Form ------------------------------------------------ */
.form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-3xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

.form-group { margin-bottom: var(--sp-lg); }

label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--sp-sm);
}

input, textarea, select {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.72rem 1rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  appearance: none;
}

/* Restore native appearance for checkboxes/radios */
input[type="checkbox"],
input[type="radio"] {
  width: auto;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  appearance: auto;
  -webkit-appearance: auto;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

input::placeholder,
textarea::placeholder { color: var(--text-muted); }

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent-muted);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237899ac' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

select option { background: var(--bg-elevated); }

textarea { resize: vertical; min-height: 140px; }

/* Honeypot — hidden from real users */
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  tabindex: -1;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sp-xl);
  gap: var(--sp-lg);
  flex-wrap: wrap;
}

.form-notice {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.form-status {
  margin-top: var(--sp-md);
  padding: var(--sp-md) var(--sp-lg);
  border-radius: var(--r-md);
  font-size: 0.9375rem;
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(10, 189, 181, 0.08);
  border: 1px solid var(--accent-muted);
  color: var(--accent);
}

.form-status.error {
  display: block;
  background: rgba(139, 31, 42, 0.12);
  border: 1px solid rgba(139, 31, 42, 0.4);
  color: #e07070;
}

/* ---- Footer ---------------------------------------------- */
.site-footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border);
  padding: var(--sp-2xl) 0;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-lg);
}

.footer-wordmark {
  height: 22px;
  width: auto;
  filter: brightness(0) invert(1) opacity(0.45);
}

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

/* ---- Responsive ------------------------------------------ */
@media (max-width: 1024px) {
  .service-detail-card {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
  }
}

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--sp-3xl) 0;
  }

  .hero-description { max-width: 100%; }
  .hero-actions      { justify-content: center; }
  .hero-eyebrow      { justify-content: center; }

  .hero-visual { order: -1; }

  .hero-logo-wrap { width: 220px; height: 220px; }
  .hero-logo      { width: 200px; }

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

  .two-col          { grid-template-columns: 1fr; gap: var(--sp-2xl); }

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

@media (max-width: 768px) {
  :root { --sp-4xl: 4rem; --sp-3xl: 3rem; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(6, 11, 13, 0.98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: var(--sp-md) var(--sp-xl) var(--sp-xl);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

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

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: var(--sp-md) 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--border-light);
  }

  .nav-links a::after { display: none; }

  .nav-links li:last-child a { border-bottom: none; }

  .nav-cta {
    margin-top: var(--sp-sm);
    width: 100%;
    justify-content: center;
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
  }

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

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}