/* ================================================================
   style.css — brand.thestudiolo.com
   The Studiolo / Fort Decker LLC
   Layout architecture cloned from standards.site
   ================================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400;1,600&display=swap');

/* ── Ruder Plakat Variable — local font, /fonts/ ── */
@font-face {
  font-family: 'Ruder Plakat';
  src: url('fonts/RuderPlakatVariable.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}

/* ── Design Tokens ── */
:root {
  /* Color — base palette */
  --color-vermillion: #C93B1A;
  --color-dark:       #111111;
  --color-cream:      #F5F0E8;
  --color-white:      #FFFFFF;
  --color-mid:        #888888;
  --color-light:      #DDDDDD;
  --color-dark-bg:    #0F0F0F;

  /* Color — theme (overridden by scheme classes) */
  --bg:     #F2F2F2;
  --fg:     #1A1A1A;
  --fg-muted: rgba(0,0,0,0.45);
  --border: #E0E0E0;
  --accent: #C93B1A;

  /* Typography — Display (Ruder Plakat Variable) */
  --text-display-xl:  96px;
  --text-display-lg:  72px;
  --text-display-md:  48px;

  /* Typography — Body (Cormorant Garamond) */
  --text-body-lg:     20px;
  --text-body-md:     18px;
  --text-body-sm:     16px;

  /* Typography — UI (Menlo) */
  --text-label:       12px;
  --text-nav:         14px;

  /* Font Stacks */
  --font-display: 'Ruder Plakat', Georgia, serif;
  --font-body:    'Cormorant Garamond', Georgia, serif;
  --font-mono:     Menlo, 'Courier New', monospace;

  /* Spacing */
  --space-section:  100px;
  --space-block:     48px;
  --space-element:   24px;
  --space-tight:     12px;
  --grid-gap:        10px;

  /* Layout */
  --max-width:      1280px;
  --max-width-text:  720px;
  --radius:            2px;
  --nav-height:       64px;

  /* Motion */
  --transition-fast:  150ms ease;
  --transition-base:  200ms ease;
  --transition-slow:  400ms ease;
}

/* ── Color Schemes ── */
body.scheme-light {
  --bg: #F2F2F2;
  --fg: #1A1A1A;
  --fg-muted: rgba(0,0,0,0.45);
  --border: #E0E0E0;
  --accent: #C93B1A;
}

body.scheme-dark {
  --bg: #0a0a0a;
  --fg: #ffffff;
  --fg-muted: rgba(255,255,255,0.45);
  --border: rgba(255,255,255,0.12);
  --accent: #C93B1A;
}

body.scheme-martian {
  --bg: #E8A838;
  --fg: #000000;
  --fg-muted: rgba(0,0,0,0.45);
  --border: rgba(0,0,0,0.15);
  --accent: #C93B1A;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: 'Menlo', 'Courier New', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
}

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

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

/* ── Utility ── */
.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-element);
}

.text-wrapper {
  max-width: var(--max-width-text);
}

/* ── Placeholder Image Divs ── */
.placeholder {
  background-color: var(--color-mid);
  border-radius: var(--radius);
}

.placeholder--16x9 {
  aspect-ratio: 16 / 9;
}

.placeholder--1x1 {
  aspect-ratio: 1 / 1;
}

.placeholder--4x3 {
  aspect-ratio: 4 / 3;
}

/* ================================================================
   NAVIGATION
   ================================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-element);
  transition: background 0.3s ease;
}

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg);
  transition: color var(--transition-fast);
}

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

/* ── Nav Index Trigger ── */
.nav__center {
  margin-left: var(--space-block);
}

.nav__right {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.nav__index-btn {
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: none;
  border: none;
  color: var(--fg);
  cursor: pointer;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav__index-btn:hover,
.nav__index-btn.active {
  color: var(--accent);
}

/* ── Nav Dropdown Panel ── */
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: var(--space-tight) 0 var(--space-element);
}

.nav-dropdown.open {
  display: block;
}

.nav-dropdown__inner {
  display: flex;
  gap: var(--space-block);
  min-height: 80px;
  padding-left: var(--dropdown-offset, 24px);
}

.nav-dropdown__col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-dropdown__col--sections {
  min-width: 160px;
}

.nav-dropdown__col--subsections {
  min-width: 180px;
}

.nav-dropdown__col--items {
  min-width: 160px;
}

.nav-dropdown__section,
.nav-dropdown__subsection,
.nav-dropdown__item {
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 1px 0;
  cursor: pointer;
  transition: color var(--transition-fast);
  background: none;
  border: none;
  text-align: left;
  display: block;
  line-height: 1.8;
}

.nav-dropdown__section:hover,
.nav-dropdown__section.active,
.nav-dropdown__subsection:hover,
.nav-dropdown__subsection.active,
.nav-dropdown__item:hover {
  color: var(--accent);
}

.nav-dropdown__item {
  font-size: var(--text-label);
  text-transform: none;
  color: var(--fg-muted);
}

.nav-dropdown__item:hover {
  color: var(--fg);
}

/* ── Theme Toggle ── */
.theme-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  margin-left: var(--space-element);
  color: var(--fg);
  opacity: 0.4;
  transition: opacity var(--transition-fast);
}

.theme-toggle:hover {
  opacity: 0.9;
}

.theme-toggle-icon {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--fg);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

body.scheme-light .theme-toggle-icon::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: var(--fg);
}

body.scheme-dark .theme-toggle-icon::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background: var(--fg);
}

body.scheme-martian .theme-toggle-icon {
  border-color: #000000;
  background: #888888;
}

body.scheme-martian .theme-toggle-icon::after {
  display: none;
}

/* menu-btn removed — replaced by index-btn */

/* Case study nav variant */
.nav__breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  color: var(--fg);
}

.nav__breadcrumb a {
  color: var(--fg);
  transition: color var(--transition-fast);
}

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

.nav__adjacent {
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  color: var(--fg-muted);
  margin-left: var(--space-element);
}

.nav__adjacent a {
  color: var(--fg-muted);
  transition: color var(--transition-fast);
}

.nav__adjacent a:hover {
  color: var(--fg);
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: var(--space-block) var(--space-element) 0;
}

.hero__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: var(--grid-gap);
}

.hero__headline {
  font-family: var(--font-display);
  font-size: var(--text-display-xl);
  font-weight: 400;
  line-height: 1.0;
  color: var(--fg);
}

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

/* Scheme-aware headline images */
.hero__headline-img {
  display: block;
  width: 100%;
  max-width: 700px;
  height: auto;
}

/* Light scheme: show black version */
body.scheme-light .hero__headline-img--light { display: none; }
body.scheme-light .hero__headline-img--dark  { display: block; }

/* Dark scheme: show white version */
body.scheme-dark .hero__headline-img--dark  { display: none; }
body.scheme-dark .hero__headline-img--light { display: block; }

/* Martian/ochre scheme: show black version */
body.scheme-martian .hero__headline-img--light { display: none; }
body.scheme-martian .hero__headline-img--dark  { display: block; }

.hero__subhead {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-style: italic;
  font-size: 32px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: normal;
  text-transform: none;
  color: var(--fg);
  margin-top: var(--space-element);
  max-width: 700px;
}

/* ── Hero Media (full-width below headline) ── */
.hero__media {
  padding: 0 var(--space-element);
  margin-top: var(--space-element);
}

.hero__media .wrapper {
  padding: 0;
}

.hero__media-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
}

/* ================================================================
   CASE STUDY TEXT BLOCK
   ================================================================ */
/* ── Case Text Block ── */
.case-text {
  padding: var(--space-section) var(--space-element);
}

.case-text__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.case-text__inner p {
  font-family: inherit;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--fg);
}

.case-text__link {
  display: inline-block;
  margin-top: var(--space-block);
  font-family: inherit;
  font-size: inherit;
  color: var(--fg-muted);
  transition: color var(--transition-fast);
}

.case-text__link:hover {
  color: var(--accent);
}

/* ── Media Grid Images ── */
.media-grid__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

.media-grid__img--square {
  aspect-ratio: 1 / 1;
}

/* ── Media Card (image + text) ── */
.media-card {
  display: flex;
  flex-direction: column;
}

.media-card__text {
  padding-top: var(--space-tight);
}

.media-card__title {
  font-family: inherit;
  font-size: inherit;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 4px;
}

.media-card__desc {
  font-family: inherit;
  font-size: inherit;
  line-height: 1.6;
  color: var(--fg-muted);
}

/* ================================================================
   SECTION LAYOUTS
   ================================================================ */

/* 6/6 Split — sub-headline, section labels */
.split-6-6 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-element);
}

/* 7/5 Split — hero, feature headlines */
.split-7-5 {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: var(--grid-gap);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-element);
}

/* ── Sub-headline / Mission ── */
.sub-headline {
  padding: var(--space-section) 0;
}

.sub-headline__text {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--fg);
}

.sub-headline__text a {
  color: var(--accent);
  transition: opacity var(--transition-fast);
}

/* ── Section Spacers ── */
.spacer--sm { height: var(--space-block); }
.spacer--md { height: var(--space-section); }
.spacer--lg { height: 200px; }

/* ================================================================
   LOGO BAR
   ================================================================ */
.logo-bar {
  padding: var(--space-section) var(--space-element);
}

.logo-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-block);
}

.logo-bar__item {
  width: 100px;
  height: 40px;
  background-color: var(--color-light);
  border-radius: var(--radius);
  flex-shrink: 0;
}

/* ================================================================
   SECTION LABEL
   ================================================================ */
.section-label {
  padding: 0 var(--space-element);
  margin-bottom: var(--space-element);
}

.section-label__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.section-label__title {
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  color: var(--fg);
}

.section-label__link {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--fg-muted);
  transition: color var(--transition-fast);
}

.section-label__link:hover {
  color: var(--accent);
}

/* ================================================================
   MEDIA GRID — Case Study Images
   ================================================================ */
.media-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-element);
  margin-bottom: var(--grid-gap);
}

.media-grid--1col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--grid-gap);
}

.media-grid--2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
}

.media-grid--3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--grid-gap);
}

/* ================================================================
   FEATURES
   ================================================================ */
.features {
  padding: var(--space-section) 0;
}

.features__headline {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: 1.05;
  color: var(--fg);
}

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

.features__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-section) var(--space-element) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-block) var(--grid-gap);
}

.feature__title {
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: 400;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: var(--space-tight);
}

.feature__body {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--fg);
  max-width: 540px;
}

/* ================================================================
   CTA SECTION
   ================================================================ */
.cta {
  padding: var(--space-section) var(--space-element);
  text-align: center;
}

.cta__headline {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: 1.05;
  color: var(--fg);
  max-width: var(--max-width);
  margin: 0 auto var(--space-block);
}

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

.cta__button {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  background-color: var(--accent);
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.cta__button:hover {
  opacity: 0.85;
  color: var(--color-white);
}

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
  background-color: var(--color-dark-bg);
  color: var(--color-cream);
  padding: var(--space-section) var(--space-element) var(--space-block);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
  margin-bottom: var(--space-section);
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  margin-bottom: var(--space-element);
}

.footer__col ul {
  list-style: none;
}

.footer__col li {
  margin-bottom: var(--space-tight);
}

.footer__col a {
  font-family: inherit;
  font-size: inherit;
  color: var(--color-cream);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--space-block);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--fg-muted);
}

.footer__legal a {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--fg-muted);
  margin-left: var(--space-element);
  transition: color var(--transition-fast);
}

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

/* ================================================================
   CASE STUDY PAGE
   ================================================================ */

/* Title block */
.cs-header {
  padding: var(--space-section) var(--space-element) var(--space-block);
  max-width: var(--max-width);
  margin: 0 auto;
}

.cs-header__client {
  font-family: var(--font-display);
  font-size: var(--text-display-lg);
  font-weight: 400;
  line-height: 1.1;
  color: var(--fg-muted);
}

.cs-header__title {
  font-family: var(--font-body);
  font-style: italic;
  font-size: var(--text-display-md);
  font-weight: 300;
  line-height: 1.2;
  color: var(--fg);
  margin-top: var(--space-tight);
}

.cs-header__title .accent {
  color: var(--accent);
  font-style: normal;
}

/* Body text */
.cs-body {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-block) var(--space-element);
}

.cs-body__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
}

.cs-body__block {
  max-width: var(--max-width-text);
}

.cs-body__label {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 600;
  color: var(--fg);
  margin-bottom: var(--space-tight);
}

.cs-body__text {
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  line-height: 1.6;
  color: var(--fg);
}

/* Credits */
.cs-credits {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-block) var(--space-element);
  display: flex;
  gap: var(--space-block);
}

.cs-credits__item {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--fg-muted);
}

.cs-credits__item a {
  color: var(--fg-muted);
  transition: color var(--transition-fast);
}

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

/* Gallery */
.cs-gallery {
  padding: var(--space-block) 0;
}

/* Related case studies */
.cs-related {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-element);
}

.cs-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin-top: var(--space-element);
}

.cs-related__card {
  display: block;
  text-decoration: none;
  transition: opacity var(--transition-base);
}

.cs-related__card:hover {
  opacity: 0.85;
}

.cs-related__card-image {
  background-color: var(--color-mid);
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  margin-bottom: var(--space-tight);
}

.cs-related__card-title {
  font-family: var(--font-mono);
  font-size: var(--text-nav);
  color: var(--fg);
}

/* ================================================================
   RESPONSIVE — Tablet (768px)
   ================================================================ */
@media (min-width: 768px) {
  :root {
    --nav-height: 64px;
  }
}

/* ================================================================
   RESPONSIVE — Mobile-first overrides (max-width)
   ================================================================ */
@media (max-width: 767px) {
  :root {
    --text-display-xl: 56px;
    --text-display-lg: 44px;
    --text-display-md: 32px;
    --space-section:   60px;
    --space-block:     32px;
    --nav-height:      56px;
  }

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

  .split-6-6 {
    grid-template-columns: 1fr;
  }

  .split-7-5 {
    grid-template-columns: 1fr;
  }

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

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

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

  .logo-bar__inner {
    flex-wrap: wrap;
    gap: var(--space-element);
  }

  .nav-dropdown__inner {
    flex-direction: column;
    gap: var(--space-element);
    min-height: auto;
  }

  .nav-dropdown__col {
    min-width: 0;
  }

  .cs-body__grid {
    grid-template-columns: 1fr;
  }

  .cs-related__grid {
    grid-template-columns: 1fr;
    gap: var(--space-element);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-tight);
  }
}

/* ================================================================
   RESPONSIVE — Desktop (1024px)
   ================================================================ */
@media (min-width: 1024px) {
  .features__grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ================================================================
   RESPONSIVE — Wide (1280px)
   ================================================================ */
@media (min-width: 1280px) {
  .wrapper {
    padding: 0;
  }
}