/* ============================================
   SINGULAR LEADING — Modern Redesign
   Design: Editorial-warm consultancy aesthetic
   Fonts: DM Serif Display + Work Sans
   ============================================ */

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

:root {
  --color-bg: #FDFBF7;
  --color-bg-alt: #F5F0E8;
  --color-bg-dark: #1A1814;
  --color-bg-dark-alt: #2A2620;
  --color-text: #2C2820;
  --color-text-muted: #6B6358;
  --color-text-light: #9B9184;
  --color-text-inverse: #FDFBF7;
  --color-accent: #B45309;
  --color-accent-light: #D97706;
  --color-accent-dark: #92400E;
  --color-accent-subtle: #FEF3C7;
  --color-teal: #0D9488;
  --color-teal-light: #14B8A6;
  --color-teal-dark: #0F766E;
  --color-border: rgba(44, 40, 32, 0.1);
  --color-border-dark: rgba(253, 251, 247, 0.1);
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Work Sans', system-ui, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.08);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.15; }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }

.overline {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 620px;
}

/* ---------- Layout Utilities ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section--alt {
  background: var(--color-bg-alt);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(180, 83, 9, 0.25);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--outline-light {
  background: transparent;
  color: var(--color-text-inverse);
  border: 1.5px solid var(--color-border-dark);
}
.btn--outline-light:hover {
  border-color: var(--color-accent-light);
  color: var(--color-accent-light);
}

.btn--icon {
  width: 48px; height: 48px;
  padding: 0;
  border-radius: 50%;
  justify-content: center;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.2rem 0;
  transition: all var(--transition);
  background: transparent;
}

.nav.scrolled {
  background: rgba(253, 251, 247, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  padding: 0.8rem 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav__logo-mark {
  width: 36px; height: 36px;
  background: var(--color-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  font-family: var(--font-body);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 450;
  color: var(--color-text-muted);
  position: relative;
}
.nav__links a:hover,
.nav__links a.active {
  color: var(--color-text);
}
.nav__links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.nav__cta {
  font-size: 0.85rem;
  padding: 0.65rem 1.5rem;
}

.nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px; height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.nav__mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 50%, rgba(180,83,9,0.06), transparent),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(13,148,136,0.04), transparent);
}

.hero__grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(44,40,32,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44,40,32,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 80%);
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem 0.4rem 0.6rem;
  background: var(--color-accent-subtle);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent-dark);
  margin-bottom: 2rem;
}

.hero__tag-dot {
  width: 8px; height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  margin-bottom: 1.5rem;
}

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

.hero__actions {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
}

.hero__visual {
  position: relative;
}

.hero__image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  background: var(--color-bg-alt);
}

.hero__image-wrapper img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.hero__float-card {
  position: absolute;
  bottom: -1.5rem;
  left: -2rem;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 1.2rem 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: floatUp 3s ease-in-out infinite;
}

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero__float-icon {
  width: 44px; height: 44px;
  background: var(--color-teal);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.hero__float-label {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.hero__float-value {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
}

/* ---------- Metrics Bar ---------- */
.metrics {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.metric {
  text-align: center;
  flex: 1;
  min-width: 140px;
}

.metric__number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-text);
  line-height: 1;
}

.metric__label {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 0.3rem;
}

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

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.service-card__icon--ci { background: #FEF3C7; color: var(--color-accent); }
.service-card__icon--tb { background: #CCFBF1; color: var(--color-teal); }
.service-card__icon--cr { background: #FEE2E2; color: #DC2626; }

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
}
.service-card__link:hover { gap: 0.7rem; }

/* ---------- About / Approach ---------- */
.approach__steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  margin-top: 3rem;
}

.approach__step {
  text-align: center;
  padding: 1.5rem 1rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-dark-alt);
  position: relative;
}

.approach__step-number {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.approach__step-title {
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-inverse);
  margin-bottom: 0.3rem;
}

.approach__step-desc {
  font-size: 0.8rem;
  color: rgba(253,251,247,0.5);
  line-height: 1.5;
}

/* ---------- Quote ---------- */
.quote-section {
  padding: 5rem 0;
  text-align: center;
}

.quote__text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--color-text);
  max-width: 700px;
  margin: 0 auto 1.5rem;
  line-height: 1.4;
}

.quote__attribution {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.quote__attribution strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* ---------- Founder ---------- */
.founder__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-bg-alt);
}

.founder__image img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.founder__content {
  padding-left: 2rem;
}

.founder__quote {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.5;
  color: var(--color-text);
  margin: 1.5rem 0;
  padding-left: 1.5rem;
  border-left: 3px solid var(--color-accent);
}

/* ---------- CTA ---------- */
.cta {
  text-align: center;
  padding: 6rem 2rem;
  position: relative;
}

.cta__inner {
  max-width: 600px;
  margin: 0 auto;
}

.cta h2 {
  margin-bottom: 1rem;
  color: var(--color-text-inverse);
}

.cta p {
  color: rgba(253,251,247,0.6);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.cta__actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* ---------- Articles ---------- */
.article-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

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

.article-card__image {
  aspect-ratio: 16/9;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.article-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.article-card:hover .article-card__image img {
  transform: scale(1.04);
}

.article-card__body {
  padding: 1.5rem;
}

.article-card__tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 0.5rem;
}

.article-card h4 {
  margin-bottom: 0.5rem;
}

.article-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- Contact Form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
}

.contact__info-card {
  background: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  padding: 3rem;
  color: var(--color-text-inverse);
}

.contact__info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact__info-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--color-bg-dark-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.contact__info-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(253,251,247,0.4);
  margin-bottom: 0.2rem;
}

.contact__info-value {
  font-size: 0.95rem;
  line-height: 1.5;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

.form__input,
.form__textarea {
  padding: 0.9rem 1.2rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #fff;
  color: var(--color-text);
  transition: border-color var(--transition);
  outline: none;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-accent);
}

.form__textarea {
  resize: vertical;
  min-height: 140px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: 4rem 0 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border-dark);
}

.footer__brand p {
  color: rgba(253,251,247,0.5);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 280px;
  line-height: 1.6;
}

.footer__heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(253,251,247,0.4);
  margin-bottom: 1.2rem;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer__links a {
  font-size: 0.9rem;
  color: rgba(253,251,247,0.7);
}
.footer__links a:hover { color: var(--color-accent-light); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: 0.8rem;
  color: rgba(253,251,247,0.35);
}

/* ---------- Page-specific: Services Page ---------- */
.services-detail {
  padding: 3rem 0 0;
}

.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--color-border);
}

.service-detail:last-child { border-bottom: none; }

.service-detail:nth-child(even) {
  direction: rtl;
}
.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail__visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-bg-alt);
  position: relative;
}

.service-detail__visual img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.service-detail__content h3 {
  margin-bottom: 1rem;
}

.service-detail__content p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.service-detail__features {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.service-detail__features li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.service-detail__features li::before {
  content: '✓';
  color: var(--color-teal);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* ---------- Page Header (inner pages) ---------- */
.page-header {
  padding: 10rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 50% 40%, rgba(180,83,9,0.04), transparent);
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header .lead {
  margin: 0 auto;
}

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; gap: 3rem; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .approach__steps { grid-template-columns: repeat(3, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; }
  .service-detail:nth-child(even) { direction: ltr; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__mobile-toggle { display: flex; }

  .hero { min-height: auto; padding: 8rem 0 4rem; }
  .hero__actions { flex-direction: column; }
  .hero__float-card { display: none; }

  .section { padding: 4rem 0; }
  .services-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .approach__steps { grid-template-columns: 1fr 1fr; }
  .metrics__inner { justify-content: center; }

  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .form__row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .approach__steps { grid-template-columns: 1fr; }
}

/* ---------- Mobile Nav ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(253,251,247,0.98);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-text);
}

.mobile-nav a:hover { color: var(--color-accent); }

.mobile-nav__close {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  background: none; border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--color-text);
}