/* ================================================================
   CAGLAR CONSULTING — SHARED DESIGN SYSTEM
   style.css — Global visual system
================================================================ */


/* ================================================================
   1. ROOT TOKENS
================================================================ */

:root {

  /* Colours */
  --color-bg:           #f5f0e8;
  --color-bg-alt:       #ede8dc;
  --color-bg-cta:       #1a1612;
  --color-bg-inset:     #e8e2d6;

  --color-text:         #100f0e;
  --color-text-body:    #3a342e;
  --color-text-muted:   #7c7468;
  --color-text-nav:     #5c5550;

  --color-accent:       #c84b2f;
  --color-accent-hover: #ab3e26;
  --color-accent-green: #2a5c45;

  --color-border:       #d6d0c6;
  --color-border-dark:  #b8b2a7;

  /* Typography */
  --font-serif: 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, 'Times New Roman', serif;
  --font-sans:  'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono:  'Courier New', Courier, monospace;

  /* Spacing */
  --space-xs:  8px;
  --space-sm:  16px;
  --space-md:  26px;
  --space-lg:  52px;
  --space-xl:  88px;
  --space-2xl: 128px;

  /* Layout widths */
  --width-max:    1160px;
  --width-narrow: 760px;
  --width-text:   680px;

  /* Borders */
  --radius: 0px;

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 0.18s;
  --duration-mid:  0.26s;
  --duration-slow: 0.65s;
}


/* ================================================================
   2. RESET & BASE
================================================================ */

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

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}


/* ================================================================
   3. TYPOGRAPHY
================================================================ */

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-text);
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(34px, 5.2vw, 54px);
  letter-spacing: -0.8px;
  line-height: 1.12;
}

h2 {
  font-size: clamp(24px, 3.6vw, 38px);
  letter-spacing: -0.5px;
}

h3 {
  font-size: clamp(18px, 2.4vw, 23px);
  letter-spacing: -0.3px;
}

h4 {
  font-size: 18px;
  letter-spacing: -0.2px;
}

p {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.78;
  color: var(--color-text-body);
}


/* ================================================================
   4. LAYOUT CONTAINERS
================================================================ */

.container {
  width: 100%;
  max-width: var(--width-max);
  margin-inline: auto;
  padding-inline: 32px;
}

.container--narrow {
  width: 100%;
  max-width: var(--width-narrow);
  margin-inline: auto;
  padding-inline: 32px;
}

.container--text {
  width: 100%;
  max-width: var(--width-text);
  margin-inline: auto;
  padding-inline: 32px;
}


/* ================================================================
   5. SECTION SYSTEM
================================================================ */

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

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

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

.section--cta {
  background-color: var(--color-bg-cta);
  padding-block: 108px;
}

.section--cta h1,
.section--cta h2,
.section--cta h3,
.section--cta h4 {
  color: #ebe5db;
}

.section--cta p {
  color: #9a9188;
}

.section--cta .eyebrow {
  color: #68625c;
}


/* ================================================================
   6. GRIDS
================================================================ */

.grid {
  display: grid;
  gap: 32px;
}

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

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


/* ================================================================
   7. UTILITIES
================================================================ */

.text-center { text-align: center; }
.text-left   { text-align: left; }

.flow > * + * {
  margin-top: var(--space-md);
}

.flow--sm > * + * {
  margin-top: 14px;
}


/* ================================================================
   8. SMALL UI ELEMENTS
================================================================ */

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 22px;
}

.eyebrow--accent {
  color: var(--color-accent);
}

.rule {
  display: block;
  width: 32px;
  height: 1px;
  background-color: var(--color-accent);
  margin-bottom: 32px;
}

.rule--center {
  margin-inline: auto;
}


/* ================================================================
   9. BUTTONS
================================================================ */

.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  padding: 14px 34px;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--duration-mid) var(--ease-standard),
    color            var(--duration-mid) var(--ease-standard),
    border-color     var(--duration-mid) var(--ease-standard),
    transform        var(--duration-mid) var(--ease-standard),
    opacity          var(--duration-mid) var(--ease-standard);
  will-change: transform;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0px);
  transition-duration: 0.08s;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

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

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-dark);
}

.btn--secondary:hover {
  border-color: var(--color-text);
  background-color: rgba(16, 15, 14, 0.05);
}

.btn--ghost-light {
  background-color: transparent;
  color: #e8e2d8;
  border-color: #524c46;
}

.btn--ghost-light:hover {
  background-color: rgba(232, 226, 216, 0.07);
  border-color: #8a8278;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}


/* ================================================================
   10. HEADER / NAV
================================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

/* ── Wordmark ── */

.nav__logo {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0.4px;
  color: var(--color-text);
  white-space: nowrap;
  transition: opacity var(--duration-mid) var(--ease-standard);
}

.nav__logo:hover {
  opacity: 0.66;
}

/* ── Nav links ── */

.nav__right {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav__links a {
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-text-nav);
  transition: color var(--duration-fast) ease;
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--duration-mid) var(--ease-standard);
}

.nav__links a:hover {
  color: var(--color-text);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__links a.is-active {
  color: var(--color-text);
}

.nav__links a.is-active::after {
  width: 100%;
}

/* ── Nav CTA — separated visually from links ── */

.nav__cta {
  border-left: 1px solid var(--color-border);
  padding-left: 28px;
}

.nav__cta .btn {
  padding: 9px 20px;
  font-size: 10.5px;
  letter-spacing: 1.5px;
}

/* ── Hamburger button ── */

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 4px;
  margin-left: 16px;
  flex-shrink: 0;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-text);
  transition: transform 0.24s var(--ease-standard), opacity 0.18s ease;
  transform-origin: center;
}

.nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── Mobile nav panel ── */

.nav-open .nav__links {
  display: flex !important;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 0 16px;
  z-index: 199;
  box-shadow: 0 8px 24px rgba(16, 15, 14, 0.07);
}

.nav-open .nav__links li {
  width: 100%;
}

.nav-open .nav__links a {
  display: block;
  width: 100%;
  padding: 14px 32px;
  font-size: 12px;
  letter-spacing: 1.4px;
  color: var(--color-text-nav);
  border-bottom: 1px solid var(--color-border);
}

.nav-open .nav__links a:hover,
.nav-open .nav__links a.is-active {
  color: var(--color-text);
  background-color: var(--color-bg-alt);
}

.nav-open .nav__links a::after {
  display: none;
}


/* ================================================================
   11. FOOTER
================================================================ */

.site-footer {
  background-color: #1a1612;
  padding-block: 60px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: start;
}

.footer__brand {
  font-family: var(--font-serif);
  font-size: 16px;
  color: #d4ccc0;
  margin-bottom: 10px;
  letter-spacing: 0.1px;
}

.footer__tagline {
  font-size: 13.5px;
  color: #6a6358;
  margin-bottom: 6px;
  line-height: 1.5;
}

.footer__location {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #4e4944;
}

.footer__contact {
  font-size: 13px;
  color: #6a6358;
  margin-top: 5px;
}

.footer__contact a {
  color: #6a6358;
  text-decoration: none;
}

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

.footer__nav {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 11px;
}

.footer__nav a {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #706860;
  transition: color var(--duration-fast) ease;
  position: relative;
}

.footer__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: #8a8278;
  transition: width var(--duration-mid) var(--ease-standard);
}

.footer__nav a:hover {
  color: #c0b8ae;
}

.footer__nav a:hover::after {
  width: 100%;
}

.footer__bottom {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid #272220;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #3c3834;
  letter-spacing: 0.5px;
}


/* ================================================================
   12. SHARED CONTENT PATTERNS
================================================================ */

/* Checklist */

.checklist {
  margin-top: 24px;
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--duration-fast) ease;
}

.checklist__item:first-child {
  border-top: 1px solid var(--color-border);
}

.checklist__marker {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 9px;
  transition: transform var(--duration-mid) var(--ease-standard);
}

.checklist__text {
  font-size: 15.5px;
  color: var(--color-text-body);
  line-height: 1.6;
}

/* Section closing line */

.section-closing {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Approach cards (homepage) */

.approach-card {
  transition:
    border-color  var(--duration-mid) var(--ease-standard),
    transform     var(--duration-mid) var(--ease-standard),
    box-shadow    var(--duration-mid) var(--ease-standard);
  will-change: transform;
}

.approach-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-dark);
  box-shadow: 0 4px 16px rgba(16, 15, 14, 0.05);
}

/* Results panel */

.results-panel {
  transition:
    border-color var(--duration-mid) var(--ease-standard),
    box-shadow   var(--duration-mid) var(--ease-standard);
}

.results-panel:hover {
  border-color: var(--color-border-dark);
  box-shadow: 0 4px 20px rgba(16, 15, 14, 0.05);
}

/* Fit columns */

.fit-col {
  transition:
    border-top-color var(--duration-mid) var(--ease-standard),
    box-shadow       var(--duration-mid) var(--ease-standard);
}

.fit-col--good:hover {
  box-shadow: 0 4px 16px rgba(42, 92, 69, 0.06);
}

/* Case study blocks (results page) */

.case-study {
  transition:
    border-color var(--duration-mid) var(--ease-standard),
    box-shadow   var(--duration-mid) var(--ease-standard);
}

.case-study:hover {
  border-color: var(--color-border-dark);
  box-shadow: 0 4px 20px rgba(16, 15, 14, 0.04);
}


/* ================================================================
   13. SCROLL REVEAL
================================================================ */

.js-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity   var(--duration-slow) var(--ease-standard),
    transform var(--duration-slow) var(--ease-standard);
  will-change: opacity, transform;
}

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

/* Staggered children inside a revealed grid */

.js-reveal-stagger > *:nth-child(1) { transition-delay: 0s;    }
.js-reveal-stagger > *:nth-child(2) { transition-delay: 0.08s; }
.js-reveal-stagger > *:nth-child(3) { transition-delay: 0.16s; }
.js-reveal-stagger > *:nth-child(4) { transition-delay: 0.24s; }

/* Preserve visibility for users who prefer reduced motion */

@media (prefers-reduced-motion: reduce) {
  .js-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .btn:hover,
  .btn:active {
    transform: none;
    transition: none;
  }

  .approach-card,
  .approach-card:hover,
  .results-panel,
  .fit-col,
  .case-study {
    transform: none;
    box-shadow: none;
    transition: none;
  }

  .nav__links a::after,
  .footer__nav a::after {
    transition: none;
  }
}


/* ================================================================
   14. RESPONSIVE
================================================================ */

/* ── Tablet ── */

@media (max-width: 960px) {

  .grid--3 {
    grid-template-columns: 1fr;
  }

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer__nav {
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 18px;
  }

}

/* ── Mobile ── */

@media (max-width: 640px) {

  :root {
    --space-xl:  56px;
    --space-md:  22px;
  }

  .section--cta {
    padding-block: 72px;
  }

  .nav__links {
    display: none;
  }

  .nav__right {
    gap: 0;
  }

  .nav__cta {
    border-left: none;
    padding-left: 0;
  }

  .nav__cta .btn {
    padding: 9px 18px;
    font-size: 11px;
  }

  .nav__hamburger {
    display: flex;
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-group .btn {
    text-align: center;
    width: 100%;
  }

  .footer__nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

}