/* ==========================================================================
   MIRAI YAPI & MİMARLIK — Architectural Monograph Stylesheet
   Zero border-radius, exposed 1px Swiss title-block hairlines, tactile cotton-rag
   travertine palette (#F6F3EC), obsidian atelier spread (#131211), Barolo & Bronze.
   ========================================================================== */

:root {
  --paper: #F6F3EC;
  --paper-warm: #EFEAE0;
  --paper-deep: #E5DECFE6;
  --paper-card: #FAF8F3;
  --ink: #151413;
  --ink-secondary: #4A453E;
  --ink-muted: #70685D;
  --hairline: #D5CEC0;
  --hairline-strong: #B8AF9E;

  --obsidian: #131211;
  --obsidian-surface: #1A1816;
  --obsidian-ink: #F2EEE5;
  --obsidian-muted: #A39B8E;
  --obsidian-line: #2E2B26;

  --barolo: #5E1D24;
  --barolo-soft: rgba(94, 29, 36, 0.08);
  --bronze: #8E704C;
  --olive: #495240;
  --error: #8C232C;
  --error-bg: rgba(140, 35, 44, 0.05);

  --font-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --container-max: 1440px;
  --gutter: clamp(1.125rem, 3vw, 3rem);
  --header-h: 4.25rem;
}

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

html {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  overflow-x: clip;
  position: relative;
}

/* Subtle architectural cotton-rag mineral grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.024;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 1.5px solid var(--barolo);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: var(--gutter);
  z-index: 1200;
  background: var(--ink);
  color: var(--paper);
  padding: 0.65rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skip-link:focus {
  inset-block-start: 0.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Typography & Utility Primitives */
.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  color: var(--ink-muted);
}

.mono-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.shell {
  width: min(100%, var(--container-max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ==========================================================================
   1. ADAPTIVE SINGLE-TREE HEADER & POPOVER NAVBAR (modern-web-guidance: navbar)
   ========================================================================== */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 90;
  height: var(--header-h);
  background: rgba(246, 243, 236, 0.94);
  backdrop-filter: blur(8px);
  border-block-end: 1px solid var(--hairline);
}

.site-nav {
  height: 100%;
  width: min(100%, var(--container-max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-nav.is-measuring * {
  transition: none !important;
}

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

.brand-lockup {
  display: inline-flex;
  align-items: baseline;
  gap: 0.85rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-wordmark {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding-inline-start: 0.85rem;
  border-inline-start: 1px solid var(--hairline);
}

@media (width < 560px) {
  .brand-sub {
    display: none;
  }
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Narrow / Default Popover State */
.menu-toggle {
  anchor-name: --menu-button;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: transparent;
  border: 1px solid var(--hairline-strong);
  padding: 0.45rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink);
}

.menu-toggle:hover {
  border-color: var(--ink);
  background: var(--paper-warm);
}

.menu-bars {
  width: 14px;
  height: 9px;
  position: relative;
  display: inline-block;
}

.menu-bars::before,
.menu-bars::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 1px;
  background: currentColor;
}

.menu-bars::before {
  inset-block-start: 1px;
}

.menu-bars::after {
  inset-block-end: 1px;
}

.site-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Popover positioning with fixed fallback before CSS Anchor Positioning */
.site-menu[popover] {
  margin: 0;
  inset: auto;
  inset-block-start: calc(var(--header-h) + 0.35rem);
  inset-inline-end: var(--gutter);
  inset-block-start: calc(anchor(--menu-button bottom) + 0.35rem);
  inset-inline-end: anchor(--menu-button right);
  min-width: min(20rem, calc(100vw - 2rem));
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 0.5rem 0;
  box-shadow: 0 18px 40px rgba(21, 20, 19, 0.12);
}

.site-menu[popover]:is(:popover-open, .\:popover-open) {
  display: flex;
  flex-direction: column;
}

.site-menu li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--ink-secondary);
  border-block-end: 1px solid rgba(213, 206, 192, 0.45);
  transition: color 160ms ease, background-color 160ms ease;
}

.site-menu li:last-child a {
  border-block-end: 0;
}

.site-menu li a:hover {
  color: var(--ink);
  background: var(--paper-warm);
}

/* Wide Inline State (Activated dynamically via ResizeObserver) */
.site-nav.is-wide .menu-toggle {
  display: none;
}

.site-nav.is-wide .site-menu {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.85rem;
  background: transparent;
  border: 0;
  padding: 0;
  box-shadow: none;
  min-width: 0;
}

.site-nav.is-wide .site-menu li a {
  padding: 0.25rem 0;
  border: 0;
  white-space: nowrap;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  position: relative;
}

.site-nav.is-wide .site-menu li a:hover {
  background: transparent;
  color: var(--barolo);
}

.site-nav.is-wide .site-menu li a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: -2px;
  height: 1px;
  background: var(--barolo);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease;
}

.site-nav.is-wide .site-menu li a:hover::after {
  transform: scaleX(1);
}

/* Bilingual Switcher (TR | EN) */
.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--hairline-strong);
  height: 2rem;
}

.lang-btn {
  background: transparent;
  border: 0;
  padding: 0 0.58rem;
  height: 100%;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  color: var(--ink-muted);
  transition: background-color 150ms ease, color 150ms ease;
}

.lang-btn + .lang-btn {
  border-inline-start: 1px solid var(--hairline-strong);
}

.lang-btn[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

/* ==========================================================================
   2. QUIET MONOGRAPH HERO & ARCHITECTURAL TITLE-BLOCK
   ========================================================================== */
.hero {
  border-block-end: 1px solid var(--hairline);
  padding-block: clamp(1.75rem, 3.5vw, 3.25rem) 0;
}

.hero-top-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
  align-items: end;
  padding-block-end: clamp(1.5rem, 3vw, 2.5rem);
}

.hero-heading-col {
  grid-column: span 8;
}

.hero-thesis-col {
  grid-column: span 4;
  border-inline-start: 1px solid var(--hairline);
  padding-inline-start: 1.5rem;
}

@media (width < 960px) {
  .hero-heading-col,
  .hero-thesis-col {
    grid-column: 1 / -1;
  }
  .hero-thesis-col {
    border-inline-start: 0;
    border-block-start: 1px solid var(--hairline);
    padding-inline-start: 0;
    padding-block-start: 1.15rem;
  }
}

.hero-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-block-end: 0.9rem;
}

.kicker-rule {
  width: 2.25rem;
  height: 1px;
  background: var(--bronze);
  display: inline-block;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.45rem, 4.9vw, 4.55rem);
  line-height: 1.04;
  letter-spacing: -0.018em;
  margin: 0;
  color: var(--ink);
  max-width: 18ch;
}

.hero-title em {
  font-style: italic;
  color: var(--barolo);
}

.hero-lead {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  line-height: 1.68;
  color: var(--ink-secondary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.72rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
}

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

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
}

.btn-ghost:hover {
  border-color: var(--ink);
  background: var(--paper-warm);
}

/* Full-Bleed Architectural Hero Plate */
.hero-plate-frame {
  position: relative;
  border-block-start: 1px solid var(--hairline);
  background: var(--obsidian);
  overflow: hidden;
}

.hero-plate-img {
  width: 100%;
  height: clamp(21rem, 56vw, 44rem);
  object-fit: cover;
  object-position: center 48%;
}

.hero-plate-caption {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-block-start: 1px solid var(--hairline);
  background: var(--paper);
}

.titleblock-cell {
  padding: 0.95rem 1.25rem;
  border-inline-end: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.titleblock-cell:last-child {
  border-inline-end: 0;
}

.titleblock-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.titleblock-val {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink);
}

.titleblock-link {
  background: none;
  border: 0;
  padding: 0;
  text-align: left;
  cursor: pointer;
  color: var(--barolo);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.titleblock-link:hover {
  text-decoration: underline;
}

@media (width < 860px) {
  .hero-plate-caption {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .titleblock-cell:nth-child(2) {
    border-inline-end: 0;
  }
  .titleblock-cell:nth-child(1),
  .titleblock-cell:nth-child(2) {
    border-block-end: 1px solid var(--hairline);
  }
}

@media (width < 500px) {
  .hero-plate-caption {
    grid-template-columns: 1fr;
  }
  .titleblock-cell {
    border-inline-end: 0;
    border-block-end: 1px solid var(--hairline);
  }
  .titleblock-cell:last-child {
    border-block-end: 0;
  }
}

/* ==========================================================================
   3. PORTFOLIO SECTION: DUAL-VIEW ENGINE (Monograph Spreads ⇄ Archival Index)
   ========================================================================== */
.section-block {
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
  border-block-end: 1px solid var(--hairline);
}

.section-header {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.5rem;
  align-items: end;
  margin-block-end: 2.25rem;
}

.section-header-main {
  grid-column: span 7;
}

.section-header-aside {
  grid-column: span 5;
  color: var(--ink-secondary);
  font-size: 0.92rem;
}

@media (width < 900px) {
  .section-header-main,
  .section-header-aside {
    grid-column: 1 / -1;
  }
}

.section-index {
  display: inline-block;
  margin-block-end: 0.55rem;
  color: var(--bronze);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 3.6vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.014em;
  margin: 0;
}

/* Filter & View Toolbar */
.portfolio-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
  border-block: 1px solid var(--hairline);
  margin-block-end: 2.5rem;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.filter-btn {
  background: transparent;
  border: 1px solid transparent;
  padding: 0.42rem 0.78rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  cursor: pointer;
  transition: all 150ms ease;
}

.filter-btn:hover {
  color: var(--ink);
  background: var(--paper-warm);
}

.filter-btn[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.view-switch {
  display: inline-flex;
  border: 1px solid var(--hairline-strong);
}

.view-btn {
  background: transparent;
  border: 0;
  padding: 0.45rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  cursor: pointer;
}

.view-btn + .view-btn {
  border-inline-start: 1px solid var(--hairline-strong);
}

.view-btn[aria-pressed="true"] {
  background: var(--barolo);
  color: var(--paper);
}

/* Same-Document View Transition Stage */
.portfolio-stage {
  view-transition-name: portfolio-stage;
}

.portfolio-stage:focus {
  outline: none;
}

::view-transition-old(portfolio-stage),
::view-transition-new(portfolio-stage) {
  animation-duration: 220ms;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Asymmetric Monograph Grid */
.monograph-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1.75rem, 3vw, 3rem) clamp(1.25rem, 2.2vw, 2.25rem);
  align-items: start;
}

.work-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--hairline);
  background: var(--paper-card);
  transition: border-color 180ms ease;
}

.work-card:hover {
  border-color: var(--ink-muted);
}

/* Editorial Spread Spans (When all 8 works are shown) */
.monograph-grid:not(.is-filtered) .work-card[data-span="8"] {
  grid-column: span 8;
}

.monograph-grid:not(.is-filtered) .work-card[data-span="4"] {
  grid-column: span 4;
}

.monograph-grid:not(.is-filtered) .work-card[data-span="12"] {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 7fr 5fr;
}

.monograph-grid:not(.is-filtered) .work-card[data-span="12"] .plate-stage {
  border-block-end: 0;
  border-inline-end: 1px solid var(--hairline);
}

/* Filtered View Balanced Diptych */
.monograph-grid.is-filtered .work-card {
  grid-column: span 6;
}

@media (width < 980px) {
  .monograph-grid:not(.is-filtered) .work-card[data-span="8"],
  .monograph-grid:not(.is-filtered) .work-card[data-span="4"],
  .monograph-grid.is-filtered .work-card {
    grid-column: 1 / -1;
  }
  .monograph-grid:not(.is-filtered) .work-card[data-span="12"] {
    grid-template-columns: 1fr;
  }
  .monograph-grid:not(.is-filtered) .work-card[data-span="12"] .plate-stage {
    border-inline-end: 0;
    border-block-end: 1px solid var(--hairline);
  }
}

.plate-stage {
  position: relative;
  overflow: hidden;
  background: var(--paper-warm);
  border-block-end: 1px solid var(--hairline);
}

.plate-stage[data-orientation="landscape"] {
  aspect-ratio: 16 / 9;
}

.plate-stage[data-orientation="portrait"] {
  aspect-ratio: 3 / 4;
}

@media (width < 980px) {
  .plate-stage[data-orientation="portrait"] {
    aspect-ratio: 4 / 4.4;
  }
}

.plate-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 550ms cubic-bezier(0.22, 1, 0.36, 1), opacity 240ms ease;
}

.work-card:hover .plate-photo {
  transform: scale(1.018);
}

/* Inline CAD Blueprint Sheet Layer */
.plate-cad {
  position: absolute;
  inset: 0;
  background: var(--paper-warm);
  color: var(--ink);
  padding: clamp(0.65rem, 1.5vw, 1.25rem);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 220ms ease, visibility 220ms ease;
}

.work-card.show-cad .plate-cad {
  opacity: 1;
  visibility: visible;
}

.work-card.show-cad .plate-photo {
  opacity: 0.04;
}

.cad-svg {
  width: 100%;
  height: 100%;
  max-height: 100%;
}

.cad-mono {
  font-family: var(--font-mono);
}

/* Top-Right Fotoğraf ⇄ Plan Switcher on Plate */
.plate-mode-bar {
  position: absolute;
  inset-block-start: 0.75rem;
  inset-inline-end: 0.75rem;
  z-index: 4;
  display: inline-flex;
  background: rgba(246, 243, 236, 0.92);
  border: 1px solid var(--ink);
  backdrop-filter: blur(4px);
}

.plate-mode-btn {
  background: transparent;
  border: 0;
  padding: 0.3rem 0.58rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink);
}

.plate-mode-btn + .plate-mode-btn {
  border-inline-start: 1px solid var(--ink);
}

.plate-mode-btn[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

.plate-code-badge {
  position: absolute;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  z-index: 4;
  background: rgba(21, 20, 19, 0.86);
  color: var(--paper);
  padding: 0.28rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.work-body {
  padding: clamp(1.15rem, 2vw, 1.65rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  flex: 1;
}

.work-meta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  border-block-end: 1px solid var(--hairline);
  padding-block-end: 0.65rem;
}

.work-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.42rem, 2vw, 1.85rem);
  line-height: 1.16;
  margin: 0.2rem 0 0.5rem;
}

.work-summary {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.64;
  color: var(--ink-secondary);
}

.work-specs-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  padding-block-start: 0.75rem;
  border-block-start: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 0.71rem;
  color: var(--ink-muted);
}

.work-open-btn {
  align-self: flex-start;
  margin-block-start: 0.35rem;
  background: transparent;
  border: 0;
  border-block-end: 1px solid var(--ink);
  padding: 0 0 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink);
  transition: color 150ms ease, border-color 150ms ease;
}

.work-open-btn:hover {
  color: var(--barolo);
  border-color: var(--barolo);
}

/* ==========================================================================
   4. ARCHIVAL INDEX TABLE (modern-web-guidance: responsive-table)
   ========================================================================== */
.index-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 20rem;
  gap: 2rem;
  align-items: start;
}

@media (width < 1080px) {
  .index-layout {
    grid-template-columns: 1fr;
  }
  .index-preview-aside {
    display: none;
  }
}

.table-wrapper {
  container-type: inline-size;
  overflow-x: auto;
  border: 1px solid var(--hairline);
  background: var(--paper-card);
}

.archive-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.archive-table caption {
  text-align: left;
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border-block-end: 1px solid var(--hairline);
  background: var(--paper-warm);
}

.archive-table thead th {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
  background: var(--paper);
  padding: 0.8rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.69rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border-block-end: 1px solid var(--ink);
  white-space: nowrap;
}

.archive-table tbody tr {
  border-block-end: 1px solid var(--hairline);
  cursor: pointer;
  transition: background-color 140ms ease;
}

.archive-table tbody tr:last-child {
  border-block-end: 0;
}

.archive-table tbody tr:hover,
.archive-table tbody tr:focus-within {
  background: var(--paper-warm);
}

.archive-table th[scope="row"],
.archive-table td {
  padding: 0.95rem 1rem;
  vertical-align: middle;
}

.archive-table th[scope="row"] {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--ink);
}

.archive-open-link {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.archive-open-link:hover {
  color: var(--barolo);
  text-decoration: underline;
}

/* Container-query stacked archival cards on narrow containers */
@container (width < 680px) {
  .archive-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  .archive-table,
  .archive-table tbody,
  .archive-table tr,
  .archive-table th[scope="row"],
  .archive-table td {
    display: block;
    width: 100%;
  }
  .archive-table tbody tr {
    padding: 0.85rem 1rem;
  }
  .archive-table th[scope="row"] {
    padding: 0.15rem 0 0.45rem;
    font-size: 1.25rem;
  }
  .archive-table td {
    padding: 0.25rem 0;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.83rem;
  }
  .archive-table td::before {
    content: attr(data-label);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-muted);
    flex-shrink: 0;
  }
}

.index-preview-aside {
  position: sticky;
  inset-block-start: calc(var(--header-h) + 1.5rem);
  border: 1px solid var(--hairline);
  background: var(--paper-card);
  padding: 1rem;
}

.index-preview-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-block: 0.65rem;
  border: 1px solid var(--hairline);
}

/* ==========================================================================
   5. OBSIDIAN SPREAD: MIRAI ATÖLYE & 4-GATE BAULEITUNG EXECUTION
   ========================================================================== */
.atelier-section {
  background: var(--obsidian);
  color: var(--obsidian-ink);
  padding-block: clamp(4rem, 8vw, 7rem);
  border-block-end: 1px solid var(--obsidian-line);
}

.atelier-section .mono-tag {
  color: var(--obsidian-muted);
}

.atelier-section .section-index {
  color: #C2A077;
}

.atelier-lead-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 2rem;
  margin-block-end: 3rem;
  padding-block-end: 2.5rem;
  border-block-end: 1px solid var(--obsidian-line);
}

.atelier-lead-title {
  grid-column: span 7;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.1rem, 3.8vw, 3.35rem);
  line-height: 1.08;
  margin: 0.45rem 0 0;
}

.atelier-lead-copy {
  grid-column: span 5;
  color: var(--obsidian-muted);
  font-size: 0.94rem;
  line-height: 1.72;
  align-self: end;
}

@media (width < 920px) {
  .atelier-lead-title,
  .atelier-lead-copy {
    grid-column: 1 / -1;
  }
}

.gates-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--obsidian-line);
}

.gate-card {
  padding: clamp(1.35rem, 2.2vw, 2rem);
  border-inline-end: 1px solid var(--obsidian-line);
  background: var(--obsidian-surface);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.35rem;
}

.gate-card:last-child {
  border-inline-end: 0;
}

.gate-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: #C2A077;
  display: flex;
  justify-content: space-between;
  border-block-end: 1px solid var(--obsidian-line);
  padding-block-end: 0.65rem;
}

.gate-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.48rem;
  line-height: 1.18;
  margin: 0.75rem 0 0.55rem;
  color: var(--obsidian-ink);
}

.gate-desc {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.65;
  color: var(--obsidian-muted);
}

.gate-deliverable {
  font-family: var(--font-mono);
  font-size: 0.69rem;
  letter-spacing: 0.06em;
  color: var(--obsidian-ink);
  padding-block-start: 0.75rem;
  border-block-start: 1px solid var(--obsidian-line);
}

@media (width < 1024px) {
  .gates-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .gate-card:nth-child(2) {
    border-inline-end: 0;
  }
  .gate-card:nth-child(1),
  .gate-card:nth-child(2) {
    border-block-end: 1px solid var(--obsidian-line);
  }
}

@media (width < 600px) {
  .gates-grid {
    grid-template-columns: 1fr;
  }
  .gate-card {
    border-inline-end: 0;
    border-block-end: 1px solid var(--obsidian-line);
  }
  .gate-card:last-child {
    border-block-end: 0;
  }
}

/* Atelier Workshop Strip */
.atelier-strip {
  margin-block-start: 2.5rem;
  display: grid;
  grid-template-columns: 5fr 7fr;
  border: 1px solid var(--obsidian-line);
  background: var(--obsidian-surface);
}

.atelier-strip-img {
  width: 100%;
  height: 100%;
  min-height: 17rem;
  object-fit: cover;
  border-inline-end: 1px solid var(--obsidian-line);
}

.atelier-strip-content {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
}

.atelier-tolerance-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--obsidian-line);
}

@media (width < 880px) {
  .atelier-strip {
    grid-template-columns: 1fr;
  }
  .atelier-strip-img {
    border-inline-end: 0;
    border-block-end: 1px solid var(--obsidian-line);
  }
  .atelier-tolerance-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   6. INTERACTIVE MATERIAL TACTILITY TRAY (Malzeme Disiplini)
   ========================================================================== */
.material-tray-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  border: 1px solid var(--hairline);
  background: var(--paper-card);
}

.swatch-list {
  border-inline-end: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
}

.swatch-tab {
  display: grid;
  grid-template-columns: 2.75rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  background: transparent;
  border: 0;
  border-block-end: 1px solid var(--hairline);
  text-align: left;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.swatch-tab:last-child {
  border-block-end: 0;
}

.swatch-tab:hover {
  background: var(--paper-warm);
}

.swatch-tab[aria-selected="true"] {
  background: var(--paper-warm);
  box-shadow: inset 3px 0 0 var(--barolo);
}

.swatch-chip {
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(21, 20, 19, 0.25);
  display: block;
}

.swatch-chip[data-mat="travertine"] {
  background: linear-gradient(135deg, #DFD5C3 0%, #CFC2AC 55%, #E6DECFE6 100%);
}
.swatch-chip[data-mat="walnut"] {
  background: repeating-linear-gradient(90deg, #4B3324 0px, #4B3324 4px, #382418 4px, #382418 7px);
}
.swatch-chip[data-mat="barolo"] {
  background: linear-gradient(145deg, #5E1D24 0%, #48151B 100%);
}
.swatch-chip[data-mat="basalt"] {
  background: linear-gradient(135deg, #272726 0%, #171716 100%);
}
.swatch-chip[data-mat="bronze"] {
  background: linear-gradient(135deg, #A48660 0%, #735A3B 55%, #9B7D57 100%);
}

.swatch-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  display: block;
}

.swatch-origin {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.material-detail-pane {
  padding: clamp(1.5rem, 3.2vw, 2.75rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
}

.material-spec-dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.5rem;
  margin: 0;
  padding-block-start: 1.25rem;
  border-block-start: 1px solid var(--hairline);
}

.material-spec-dl dt {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-block-end: 0.2rem;
}

.material-spec-dl dd {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 500;
}

@media (width < 900px) {
  .material-tray-layout {
    grid-template-columns: 1fr;
  }
  .swatch-list {
    border-inline-end: 0;
    border-block-end: 1px solid var(--hairline);
  }
  .material-spec-dl {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   7. PRACTICE ESSAY & STUDIO ETHOS (Yaklaşım)
   ========================================================================== */
.practice-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.practice-manifesto {
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  line-height: 1.38;
  color: var(--ink);
  margin: 0;
}

.practice-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
  border-block-start: 1px solid var(--hairline);
  padding-block-start: 1.5rem;
}

.practice-columns p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.72;
  color: var(--ink-secondary);
}

.footprint-table {
  margin-block-start: 2rem;
  border: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  background: var(--paper-card);
}

.footprint-cell {
  padding: 1.15rem 1.25rem;
  border-inline-end: 1px solid var(--hairline);
}

.footprint-cell:last-child {
  border-inline-end: 0;
}

@media (width < 920px) {
  .practice-grid,
  .practice-columns,
  .footprint-table {
    grid-template-columns: 1fr;
  }
  .footprint-cell {
    border-inline-end: 0;
    border-block-end: 1px solid var(--hairline);
  }
  .footprint-cell:last-child {
    border-block-end: 0;
  }
}

/* ==========================================================================
   8. DUAL-CHANNEL INQUIRY & FF&E SYSTEM (validate-input-after-interaction)
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.direct-channels {
  border: 1px solid var(--hairline);
  background: var(--paper-card);
}

.channel-block {
  padding: 1.25rem 1.4rem;
  border-block-end: 1px solid var(--hairline);
}

.channel-block:last-child {
  border-block-end: 0;
}

.channel-value {
  display: inline-block;
  margin-block-start: 0.3rem;
  font-family: var(--font-serif);
  font-size: 1.38rem;
  color: var(--ink);
  border-block-end: 1px solid transparent;
}

.channel-value:hover {
  color: var(--barolo);
  border-color: var(--barolo);
}

.form-shell {
  border: 1px solid var(--hairline);
  background: var(--paper-card);
}

.channel-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-block-end: 1px solid var(--hairline);
}

.channel-tab {
  background: var(--paper-warm);
  border: 0;
  padding: 1rem 1.25rem;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.channel-tab + .channel-tab {
  border-inline-start: 1px solid var(--hairline);
}

.channel-tab[aria-selected="true"] {
  background: var(--paper-card);
  color: var(--ink);
  box-shadow: inset 0 2px 0 var(--barolo);
}

.inquiry-form {
  padding: clamp(1.35rem, 2.8vw, 2.25rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.field-full {
  grid-column: 1 / -1;
}

@media (width < 920px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (width < 640px) {
  .channel-tabs,
  .inquiry-form {
    grid-template-columns: 1fr;
  }
  .channel-tab + .channel-tab {
    border-inline-start: 0;
    border-block-start: 1px solid var(--hairline);
  }
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-label {
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink);
}

.field-hint {
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin: 0;
}

.form-control {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--hairline-strong);
  padding: 0.72rem 0.85rem;
  font-size: 0.9rem;
  color: var(--ink);
  transition: border-color 150ms ease, background-color 150ms ease;
}

.form-control:focus {
  border-color: var(--ink);
  outline: none;
}

/* Strictly post-interaction invalid styling (:user-invalid + fallback) */
.form-control:is(:user-invalid, .user-invalid-fallback) {
  border-color: var(--error);
  background-color: var(--error-bg);
}

.field-error {
  font-family: var(--font-mono);
  font-size: 0.71rem;
  color: var(--error);
  min-height: 1.05rem;
}

.form-result-box {
  grid-column: 1 / -1;
  border: 1px solid var(--bronze);
  background: var(--paper-warm);
  padding: 1.1rem 1.25rem;
  font-size: 0.86rem;
}

/* ==========================================================================
   9. PROJECT MONOGRAPH MODAL <dialog>
      (modern-web-guidance: dialog, light-dismiss-a-dialog, prevent-page-scroll-under-modal-dialog)
   ========================================================================== */
dialog.monograph-dialog {
  padding: 0;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  width: min(76rem, calc(100vw - 2rem));
  max-height: calc(100dvh - 2rem);
}

dialog.monograph-dialog[open] {
  display: flex;
  flex-direction: column;
}

dialog.monograph-dialog:modal {
  overscroll-behavior: contain;
}

dialog.monograph-dialog::backdrop {
  background: rgba(15, 14, 13, 0.8);
  backdrop-filter: blur(2px);
  overflow: hidden;
  overscroll-behavior: contain;
}

.dialog-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-block-end: 1px solid var(--hairline);
  background: var(--paper-warm);
  flex-shrink: 0;
}

.dialog-close-btn {
  background: transparent;
  border: 1px solid var(--ink);
  padding: 0.38rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

.dialog-close-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.dialog-scroll-body {
  overflow-y: auto;
  overscroll-behavior: contain;
  display: grid;
  grid-template-columns: 7fr 5fr;
}

@media (width < 940px) {
  .dialog-scroll-body {
    grid-template-columns: 1fr;
  }
}

.dialog-visual-col {
  border-inline-end: 1px solid var(--hairline);
  background: var(--paper-warm);
  display: flex;
  flex-direction: column;
}

@media (width < 940px) {
  .dialog-visual-col {
    border-inline-end: 0;
    border-block-end: 1px solid var(--hairline);
  }
}

.dialog-media-tabs {
  display: flex;
  border-block-end: 1px solid var(--hairline);
  background: var(--paper);
}

.dialog-media-tab {
  flex: 1;
  background: transparent;
  border: 0;
  padding: 0.72rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink-muted);
}

.dialog-media-tab + .dialog-media-tab {
  border-inline-start: 1px solid var(--hairline);
}

.dialog-media-tab[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

.dialog-figure {
  margin: 0;
  flex: 1;
  min-height: 22rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--obsidian);
}

.dialog-figure.is-cad {
  background: var(--paper-warm);
  padding: 1.25rem;
}

.dialog-photo {
  width: 100%;
  max-height: 34rem;
  object-fit: cover;
}

.dialog-cad-wrap {
  width: 100%;
}

.dialog-text-col {
  padding: clamp(1.35rem, 2.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.35rem;
}

.dialog-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.65rem, 2.5vw, 2.25rem);
  line-height: 1.12;
  margin: 0.35rem 0 0.75rem;
}

.dialog-specs-dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1.25rem;
  margin: 0;
  padding-block: 1rem;
  border-block: 1px solid var(--hairline);
}

.dialog-specs-dl dt {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.dialog-specs-dl dd {
  margin: 0.15rem 0 0;
  font-size: 0.86rem;
  font-weight: 500;
}

.dialog-footer-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-block-start: 1px solid var(--hairline);
  background: var(--paper-warm);
  flex-shrink: 0;
}

/* ==========================================================================
   10. ARCHITECTURAL COLOPHON FOOTER
   ========================================================================== */
.site-footer {
  background: var(--paper-warm);
  padding-block: 2.5rem;
  font-size: 0.82rem;
  color: var(--ink-secondary);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links a:hover {
  color: var(--barolo);
}