/* ===========================
   SUSTAINED CONSULTING — GLOBAL STYLES
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

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

:root {
  --bg: #F5F3EE;
  --ink: #1E1E1E;
  --green: #6C8E6D;
  --olive: #8B927D;
  --taupe: #D4CFC7;
  --white: #ffffff;
  --dark: #111110;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;
  --space-2xl: 10rem;

  --radius: 4px;
  --radius-lg: 8px;
  --transition: 0.22s ease;
  --max-w: 1200px;
}

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

body {
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }

p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--olive);
  max-width: 60ch;
}

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

.section {
  padding: var(--space-xl) 0;
}

.section--sm {
  padding: var(--space-lg) 0;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--bg);
  border-bottom: 1px solid var(--taupe);
  height: 68px;
  display: flex;
  align-items: center;
  transition: height 0.28s ease, box-shadow 0.28s ease;
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-md);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
  transform-origin: left center;
  transition: transform 0.28s ease;
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  white-space: nowrap;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--olive);
  letter-spacing: 0.01em;
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--green);
  transition: width var(--transition);
}

.nav__link:hover {
  color: var(--ink);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__link.active {
  color: var(--green);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* --- Scrolled state --- */
.nav--scrolled {
  height: 52px;
  box-shadow: 0 2px 18px rgba(30, 30, 30, 0.07);
}

.nav--scrolled .nav__logo {
  transform: scale(0.8);
}

/* Mobile menu follows nav height via sibling combinator */
.nav--scrolled ~ .nav__mobile-menu {
  top: 52px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.65rem 1.4rem;
  min-height: 44px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid transparent;
  white-space: nowrap;
  letter-spacing: 0.01em;
  touch-action: manipulation;
}

.btn--primary {
  background-color: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.btn--primary:hover {
  background-color: var(--ink);
  border-color: var(--ink);
}

.btn--outline {
  background-color: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn--outline:hover {
  background-color: var(--ink);
  color: var(--white);
}

.btn--outline-light {
  background-color: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

.btn--outline-light:hover {
  background-color: var(--white);
  color: var(--ink);
  border-color: var(--white);
}

.btn--ghost {
  background-color: transparent;
  color: var(--green);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
}

.btn--ghost:hover {
  color: var(--ink);
}

.btn--ghost::after {
  content: ' →';
}

/* --- Page Wrapper --- */
.page-content {
  padding-top: 68px;
}

/* --- Hero --- */
.hero {
  padding: var(--space-2xl) 0 var(--space-xl);
}

.hero__label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: var(--space-md);
  display: block;
}

.hero__headline {
  margin-bottom: var(--space-md);
  color: var(--ink);
}

.hero__sub {
  font-size: 1.125rem;
  margin-bottom: var(--space-lg);
  color: var(--olive);
  max-width: 48ch;
}

.hero__ctas {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* --- Ticker --- */
.ticker {
  overflow: hidden;
  background-color: var(--ink);
  padding: 0.9rem 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.ticker__track {
  display: flex;
  gap: 0;
  animation: ticker-scroll 28s linear infinite;
  width: max-content;
}

.ticker__track:hover {
  animation-play-state: paused;
}

.ticker__item {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--taupe);
  white-space: nowrap;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.ticker__item::after {
  content: '·';
  color: var(--green);
  font-size: 1.2rem;
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.card {
  background-color: var(--white);
  border: 1px solid var(--taupe);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}

.card__tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: var(--space-sm);
  display: block;
}

.card__title {
  font-size: 1.25rem;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.card__body {
  font-size: 0.95rem;
  color: var(--olive);
  margin-bottom: var(--space-md);
}

/* --- Stats Band --- */
.stats-band {
  background-color: var(--dark);
  padding: var(--space-lg) 0;
}

.stats-band__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  text-align: center;
}

.stat__number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat__label {
  font-size: 0.85rem;
  color: var(--taupe);
  font-weight: 400;
  letter-spacing: 0.04em;
  max-width: none;
}

/* --- Section Labels --- */
.section-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
  display: block;
}

.section-headline {
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--olive);
  margin-bottom: var(--space-lg);
  max-width: 52ch;
}

/* --- CTA Section --- */
.cta-section {
  background-color: var(--white);
  border-top: 1px solid var(--taupe);
  border-bottom: 1px solid var(--taupe);
  padding: var(--space-xl) 0;
  text-align: center;
}

.cta-section h2 {
  margin-bottom: var(--space-md);
}

.cta-section p {
  margin: 0 auto var(--space-lg);
}

/* --- Case Study Cards --- */
.case-study {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--taupe);
}

.case-study:last-child {
  border-bottom: none;
}

.case-study:nth-child(even) .case-study__image {
  order: 2;
}

.case-study:nth-child(even) .case-study__content {
  order: 1;
}

.case-study__image {
  aspect-ratio: 16 / 10;
  border: 2px dashed var(--taupe);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  background-color: var(--white);
  transition: border-color var(--transition);
}

.case-study__image:hover {
  border-color: var(--green);
}

.case-study__image-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--taupe);
}

.case-study__image-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--olive);
}

.case-study__tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.75rem;
  display: block;
}

.case-study__title {
  color: var(--ink);
  margin-bottom: 1rem;
}

.case-study__body {
  color: var(--olive);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.case-study__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--green);
  transition: color var(--transition), gap var(--transition);
}

.case-study__link:hover {
  color: var(--ink);
  gap: 0.7rem;
}

/* --- Services --- */
.service-block {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  align-items: start;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--taupe);
}

.service-block:last-of-type {
  border-bottom: none;
}

.service-block__number {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--taupe);
  margin-bottom: 0.5rem;
}

.service-block__title {
  color: var(--ink);
  font-size: 1.5rem;
}

.service-block__desc {
  font-size: 1.0625rem;
  color: var(--olive);
  margin-bottom: var(--space-md);
  max-width: 55ch;
}

.service-block__list {
  display: grid;
  gap: 0.6rem;
}

.service-block__list li {
  font-size: 0.95rem;
  color: var(--olive);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.service-block__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--green);
  flex-shrink: 0;
}

/* --- About --- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.value-card {
  padding: var(--space-md) 0;
  border-top: 2px solid var(--green);
}

.value-card__title {
  font-size: 1.1rem;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.value-card__body {
  font-size: 0.95rem;
  color: var(--olive);
  max-width: none;
}

/* --- Contact Form --- */
.contact-form {
  max-width: 640px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.form-control {
  width: 100%;
  background-color: var(--white);
  border: 1.5px solid var(--taupe);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  transition: border-color var(--transition);
  outline: none;
  appearance: none;
}

.form-control::placeholder {
  color: var(--taupe);
}

.form-control:focus {
  border-color: var(--green);
}

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

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238B927D' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}

.form-note {
  font-size: 0.875rem;
  color: var(--olive);
  margin-top: var(--space-md);
  max-width: none;
}

/* --- Footer --- */
.footer {
  background-color: var(--dark);
  padding: var(--space-lg) 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--taupe);
  max-width: none;
}

.footer__links {
  display: flex;
  gap: var(--space-md);
}

.footer__link {
  font-size: 0.85rem;
  color: var(--taupe);
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--white);
}

/* --- Divider --- */
.divider {
  height: 1px;
  background-color: var(--taupe);
  border: none;
  margin: 0;
}

/* --- Hamburger --- */
.nav__hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
  background: none;
  border: none;
  touch-action: manipulation;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--ink);
  transition: all var(--transition);
}

.nav__mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background-color: var(--bg);
  border-bottom: 1px solid var(--taupe);
  padding: var(--space-md);
  z-index: 99;
  flex-direction: column;
  gap: var(--space-sm);
  transition: top 0.28s ease;
}

.nav__mobile-menu.open {
  display: flex;
}

.nav__mobile-link {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--olive);
  padding: 0.85rem 0;
  min-height: 44px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--taupe);
  transition: color var(--transition);
  touch-action: manipulation;
}

.nav__mobile-link:hover,
.nav__mobile-link.active {
  color: var(--green);
}

.nav__mobile-cta {
  margin-top: var(--space-xs);
  display: inline-flex;
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--taupe);
}

.page-header__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  display: block;
  margin-bottom: 1rem;
}

.page-header h1 {
  color: var(--ink);
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.125rem;
  color: var(--olive);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .nav__links {
    display: none;
  }

  .nav__right .btn--primary {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .case-study {
    grid-template-columns: 1fr;
  }

  .case-study:nth-child(even) .case-study__image,
  .case-study:nth-child(even) .case-study__content {
    order: unset;
  }

  .service-block {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

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

  .stats-band__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 600px) {
  :root {
    --space-xl:  4rem;
    --space-2xl: 6rem;
    --space-lg:  2.75rem;
  }

  .hero {
    padding: var(--space-xl) 0;
  }

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

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ===========================
   HERO CENTERPIECE (index.html)
   =========================== */

.hero__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

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

.logo-scene {
  width: 390px;
  height: 390px;
  max-width: 100%;
  cursor: default;
  user-select: none;
}

.logo-float {
  width: 100%;
  height: 100%;
  animation: logo-float 5.5s ease-in-out infinite;
  will-change: transform;
}

.logo-3d {
  width: 100%;
  height: 100%;
  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.logo-orbit-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-16px); }
}

/* Orbital rings */
.orbit-ring {
  fill: none;
}

.orbit-ring--1 {
  animation: dash-flow-1 11s linear infinite;
}

.orbit-ring--2 {
  animation: dash-flow-2 17s linear infinite reverse;
}

@keyframes dash-flow-1 {
  to { stroke-dashoffset: -36; }
}

@keyframes dash-flow-2 {
  to { stroke-dashoffset: 26; }
}

/* Logo mark (SVG <g>) */
.logo-mark {
  transform-box: fill-box;
  transform-origin: center;
}

/* Hover: rings speed up, logo pulses */
.logo-scene:hover .orbit-ring--1 {
  animation: dash-flow-1 2.8s linear infinite;
}

.logo-scene:hover .orbit-ring--2 {
  animation: dash-flow-2 4.2s linear infinite reverse;
}

.logo-scene:hover .logo-mark {
  animation: logo-pulse 0.72s ease-in-out infinite alternate;
}

@keyframes logo-pulse {
  from { transform: scale(1); }
  to   { transform: scale(1.055); }
}

/* Responsive — centerpiece */
@media (max-width: 900px) {
  .hero__layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__text {
    order: 2;
  }

  .hero__centerpiece {
    order: 1;
  }

  .hero__ctas {
    justify-content: center;
  }

  .hero__sub {
    margin-left: auto;
    margin-right: auto;
  }

  /* min() keeps it from overflowing on narrow phones */
  .logo-scene {
    width: min(270px, 80vw);
    height: min(270px, 80vw);
  }
}

/* --- Under 430px — small phone fixes --- */
@media (max-width: 430px) {
  :root {
    --space-xl:  3rem;
    --space-2xl: 4rem;
    --space-lg:  2.25rem;
    --space-md:  1.5rem;
  }

  /* Tighter side padding so content breathes on narrow screens */
  .container {
    padding: 0 1.25rem;
  }

  .nav__inner {
    padding: 0 1.25rem;
    gap: 0.5rem;
  }

  /* Stack and stretch hero CTAs — easier to tap, cleaner layout */
  .hero__ctas {
    flex-direction: column;
    align-items: stretch;
  }

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

  /* Footer links wrap on very narrow screens */
  .footer__links {
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }

  /* Mobile menu CTA full width */
  .nav__mobile-cta {
    width: 100%;
    justify-content: center;
  }

  /* Page header less towering on small phones */
  .page-header {
    padding: 2.75rem 0 1.75rem;
  }

  /* Inner-page sections slightly tighter */
  .section {
    padding: var(--space-xl) 0;
  }
}