/* ============================================================
   SharpEntity — Dark Editorial Design System
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --bg-primary: #08080c;
  --bg-elevated: #111116;
  --bg-surface: #16161d;
  --bg-surface-hover: #1c1c25;
  --text-primary: #e8e6e3;
  --text-secondary: #9d9ba0;
  --text-muted: #5a585e;
  --accent: #f88700;
  --accent-hover: #ffa033;
  --accent-subtle: rgba(248, 135, 0, 0.07);
  --accent-glow: rgba(248, 135, 0, 0.12);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --max-width: 1180px;
  --radius: 12px;
  --radius-lg: 20px;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --header-h: 72px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover, a:focus-visible { color: var(--accent-hover); }
ul, ol { list-style: none; }

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

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
  z-index: 200;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; top: 0; }

/* --- Layout --- */
.container {
  width: min(var(--max-width), 100% - 2.5rem);
  margin-inline: auto;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(8, 8, 12, 0.82);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
}

.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand img {
  display: block;
  width: 170px;
  height: auto;
  filter: brightness(0) invert(1);
  opacity: 0.92;
  transition: opacity 0.2s;
}
.brand:hover img { opacity: 1; }

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0.2rem;
  left: 0.75rem;
  right: 0.75rem;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current="page"] {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 0.5rem;
  padding: 0.5rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent);
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  white-space: nowrap;
}
.nav-cta:hover, .nav-cta:focus-visible {
  background: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

.nav-separator {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 0.4rem;
  flex-shrink: 0;
}

/* Mobile nav toggle */
.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-primary);
  padding: 0.5rem 0.85rem;
  font: 600 0.875rem var(--font-body);
  cursor: pointer;
  transition: border-color 0.2s;
}
.menu-toggle:hover { border-color: var(--border-hover); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 4rem 0;
}

/* Dot grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.035) 1px, transparent 0);
  background-size: 32px 32px;
  z-index: 1;
  pointer-events: none;
}

/* Gradient mesh */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 50%, rgba(248, 135, 0, 0.06) 0%, transparent 100%),
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(80, 100, 220, 0.04) 0%, transparent 100%),
    radial-gradient(ellipse 50% 40% at 50% 90%, rgba(248, 135, 0, 0.03) 0%, transparent 100%);
  z-index: 1;
  pointer-events: none;
  animation: hero-glow 12s ease-in-out infinite alternate;
}

@keyframes hero-glow {
  0% { opacity: 0.7; }
  100% { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.7s 0.1s ease forwards;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.08;
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s 0.2s ease forwards;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 580px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.7s 0.35s ease forwards;
}

.hero-actions {
  margin-top: 2.25rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.7s 0.5s ease forwards;
}

/* Service page hero — shorter */
.hero--page {
  min-height: 340px;
  min-height: auto;
  padding: 5rem 0 3.5rem;
}

.hero--page::before { display: none; }

.hero--page .hero-content { max-width: 680px; }

/* Background image hero */
.hero-bg-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-bg-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8,8,12,0.92) 0%, rgba(8,8,12,0.75) 100%);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.65rem;
  font: 600 0.925rem var(--font-body);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(248, 135, 0, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-hover);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  color: var(--text-primary);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

.btn-arrow::after {
  content: '\2192';
  transition: transform 0.2s;
}
.btn-arrow:hover::after { transform: translateX(3px); }

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 5rem 0;
}

.section--border {
  border-top: 1px solid var(--border);
}

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-primary);
}

.section-sub {
  margin-top: 1rem;
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* ============================================================
   SERVICE CARDS (Homepage)
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.service-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem 1.75rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: rgba(248, 135, 0, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(248, 135, 0, 0.1);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-subtle);
  border: 1px solid rgba(248, 135, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}

.card-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.service-card h3 a {
  color: var(--text-primary);
  text-decoration: none;
}
.service-card h3 a:hover { color: var(--accent); }

.service-card p {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.6;
  flex-grow: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.2s;
}
.card-link:hover { gap: 0.6rem; }

/* ============================================================
   DIFFERENTIATORS
   ============================================================ */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.diff-item {
  padding: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s;
}
.diff-item:hover { border-color: var(--border-hover); }

.diff-number {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  opacity: 0.7;
}

.diff-item h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.diff-item p {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.65;
}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  padding: 5rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
  background:
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(248, 135, 0, 0.04) 0%, transparent 100%);
}

.cta-band .section-heading {
  max-width: 600px;
  margin-inline: auto;
}

.cta-band .btn {
  margin-top: 2rem;
}

/* ============================================================
   CONTENT PANELS (Service Pages)
   ============================================================ */
.content-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
}

.content-panel h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.content-panel h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

.content-panel p {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-top: 0.75rem;
}

.content-panel .lead {
  font-size: 1.1rem;
  color: var(--text-primary);
  line-height: 1.75;
}

.content-grid {
  display: grid;
  gap: 1.5rem;
}

.content-grid-2 {
  grid-template-columns: 1.6fr 1fr;
}

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

/* Check list */
.list-check { margin-top: 0.5rem; }

.list-check li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.5rem 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.list-check li::before {
  content: '';
  width: 6px;
  height: 6px;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* Figure / image placeholder */
.figure-clean {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-height: 220px;
  padding: 2rem;
}

.figure-clean img {
  max-width: min(100%, 200px);
  height: auto;
  opacity: 0.85;
}

/* ============================================================
   VALUES (Core Values Page)
   ============================================================ */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.value-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.3s;
}
.value-card:hover { border-color: var(--border-hover); }

.value-card .diff-number {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.value-card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.value-card p {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.65;
}

/* Full-width value card (for odd count) */
.value-card--wide {
  grid-column: 1 / -1;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.contact-detail {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.contact-detail p {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

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

.field {
  display: grid;
  gap: 0.4rem;
}

.field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font: 400 0.95rem var(--font-body);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: rgba(248, 135, 0, 0.4);
  box-shadow: 0 0 0 3px rgba(248, 135, 0, 0.08);
}

.field textarea {
  min-height: 160px;
  resize: vertical;
}

button.btn {
  justify-self: start;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  background: var(--bg-elevated);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-brand img {
  width: 130px;
  height: auto;
  filter: brightness(0) invert(1);
  opacity: 0.5;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-secondary); }

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="2"] { transition-delay: 0.1s; }
[data-reveal="3"] { transition-delay: 0.2s; }
[data-reveal="4"] { transition-delay: 0.3s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-grid { grid-template-columns: repeat(2, 1fr); }
  .content-grid-3 { grid-template-columns: 1fr; }
}

/* Mobile nav breakpoint */
@media (max-width: 860px) {
  .menu-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    background: rgba(8, 8, 12, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem 1.5rem;
  }

  .site-nav.is-open { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
  }

  .nav-link {
    width: 100%;
    padding: 0.7rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
  }
  .nav-link:hover { background: var(--bg-surface); }
  .nav-link::after { display: none; }

  .nav-cta {
    margin-left: 0;
    margin-top: 0.5rem;
    justify-content: center;
    width: 100%;
  }

  .nav-separator { display: none; }
}

/* Small mobile */
@media (max-width: 640px) {
  .hero { min-height: 80vh; min-height: 80svh; padding: 3rem 0; }
  .hero h1 { font-size: clamp(2.2rem, 8vw, 3rem); }

  .card-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }

  .content-grid-2 { grid-template-columns: 1fr; }

  .section { padding: 3.5rem 0; }
  .cta-band { padding: 3.5rem 0; }

  .hero--page { padding: 3.5rem 0 2.5rem; min-height: auto; }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .hero-kicker, .hero h1, .hero-sub, .hero-actions {
    opacity: 1;
    transform: none;
  }
}