/* ==========================================================================
   AVCIOĞLU MÜHENDİSLİK DEMİR & ÇELİK
   Design System: Direction B — "Sıcaktan Soğuğa" (Thermal Industrial Luxury)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@700;800;900&family=Hanken+Grotesk:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* Thermal Palette (Steel & Heat) */
  --c-forge: #0E0F10;        /* Deepest black / forge */
  --c-mill-scale: #16181A;    /* Raised dark surface */
  --c-ember-deep: #1C110C;    /* Warm dark / cooling steel */
  --c-blued-steel: #22262A;   /* Neutral industrial dark */
  --c-cold-rolled: #3A3F45;   /* Mid steel / border dark */
  --c-galvanized: #6B7480;    /* Structural hairlines & muted tags */
  --c-zinc: #9AA0A6;          /* Secondary text on dark */
  --c-daylight: #E6E4DF;      /* Off-white daylight / primary text on dark */
  --c-primer: #F4F3EF;        /* Clean light background */
  --c-graphite: #1C1C1A;      /* Pure dark text on light */
  --c-graphite-soft: #5E605F; /* Secondary text on light */

  /* Interaction & Accents */
  --c-brass: #C9A24A;         /* Flat architectural brass */
  --c-brass-hover: #E8B866;   /* Heated brass */
  --c-brass-deep: #7A5E1F;    /* Brass on light */
  --c-spark: #FF6A1A;         /* Pure spark orange (interactive/live only) */
  --c-red-heat: #B8320E;      /* Warning/error */

  /* Typography */
  --font-display: 'Big Shoulders Display', -apple-system, sans-serif;
  --font-body: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Transitions */
  --ease-press: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-quench: cubic-bezier(0.7, 0, 0.3, 1);
  --dur-fast: 180ms;
  --dur-base: 280ms;
  --dur-slow: 480ms;

  /* Chamfer Cuts (45 deg) */
  --chamfer-s: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  --chamfer-m: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  --chamfer-l: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

/* ==========================================================================
   RESET & FOUNDATION
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background-color: var(--c-forge);
  color: var(--c-daylight);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--c-forge);
  color: var(--c-daylight);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)); /* space for mobile thumb bar */
}

@media (min-width: 992px) {
  body {
    padding-bottom: 0;
  }
}

/* Remove rounded corners and shadows across the board */
*,
.btn,
.card,
.form-control,
.form-select,
.modal-content,
.badge,
.dropdown-menu {
  border-radius: 0 !important;
  box-shadow: none !important;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-press);
}

/* ==========================================================================
   STRUCTURAL GRID & CONTAINERS
   ========================================================================== */
.arch-container {
  width: 100%;
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(20px, 4vw, 64px);
  padding-right: clamp(20px, 4vw, 64px);
}

.arch-container-fluid {
  width: 100%;
  padding-left: clamp(20px, 4vw, 64px);
  padding-right: clamp(20px, 4vw, 64px);
}

/* Structural Hairlines */
.hairline-top {
  border-top: 1px solid rgba(230, 228, 223, 0.14);
}
.hairline-bottom {
  border-bottom: 1px solid rgba(230, 228, 223, 0.14);
}
.hairline-dark-top {
  border-top: 1px solid rgba(28, 28, 26, 0.16);
}
.hairline-dark-bottom {
  border-bottom: 1px solid rgba(28, 28, 26, 0.16);
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
.font-display {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-weight: 800;
  line-height: 0.88;
}

.mega-title {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(2.8rem, 13vw, 13rem);
  line-height: 0.84;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--c-daylight);
  user-select: none;
  word-break: break-word;
}

.section-tag {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--c-brass);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.section-tag::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--c-spark);
}

.spec-line {
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--c-zinc);
}

/* ==========================================================================
   BUTTONS & WELD-SEAM HOVER
   ========================================================================== */
.arch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 16px 32px 16px 28px;
  position: relative;
  border: none;
  cursor: pointer;
  clip-path: var(--chamfer-m);
  transition: transform var(--dur-fast) var(--ease-press), background-color var(--dur-fast);
  white-space: nowrap;
}

.arch-btn-primary {
  background-color: var(--c-brass);
  color: var(--c-forge) !important;
}

.arch-btn-primary:hover {
  background-color: var(--c-brass-hover);
  color: var(--c-forge) !important;
}

/* The Weld-Seam: bottom edge orange spark line running on hover */
.arch-btn::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 3px;
  background-color: var(--c-spark);
  transition: width var(--dur-base) var(--ease-press);
}

.arch-btn:hover::after {
  width: 100%;
}

.arch-btn-outline {
  background-color: transparent;
  color: var(--c-daylight) !important;
  border: 1px solid rgba(230, 228, 223, 0.4);
}

.arch-btn-outline:hover {
  background-color: rgba(255, 106, 26, 0.08);
  border-color: var(--c-spark);
  color: var(--c-daylight) !important;
}

.arch-btn-outline-dark {
  background-color: transparent;
  color: var(--c-graphite) !important;
  border: 1px solid rgba(28, 28, 26, 0.4);
}

.arch-btn-outline-dark:hover {
  background-color: rgba(28, 28, 26, 0.06);
  border-color: var(--c-graphite);
  color: var(--c-graphite) !important;
}

.arch-btn-dark {
  background-color: var(--c-graphite);
  color: var(--c-daylight) !important;
}

.arch-btn-dark:hover {
  background-color: #000;
  color: #fff !important;
}

.arch-arrow {
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease-press);
}

.arch-btn:hover .arch-arrow {
  transform: translateX(5px);
}

/* ==========================================================================
   1. HEADER / NAVIGATION
   ========================================================================== */
.arch-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: 76px;
  background-color: rgba(14, 15, 16, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(230, 228, 223, 0.12);
  transition: background-color var(--dur-base), border-color var(--dur-base);
}

.arch-header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.arch-brand {
  display: flex;
  align-items: center;
}

.arch-brand img {
  height: 46px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}

.arch-brand-text {
  display: flex;
  flex-direction: column;
}

.arch-brand-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--c-daylight);
  line-height: 1;
}

.arch-brand-sub {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-brass);
  text-transform: uppercase;
  margin-top: 2px;
}

.arch-nav {
  display: none;
  align-items: center;
  gap: 32px;
}

@media (min-width: 992px) {
  .arch-nav {
    display: flex;
  }
}

.arch-nav-link {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-daylight);
  position: relative;
  padding: 8px 0;
}

.arch-nav-link .nav-idx {
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
  font-size: 0.7rem;
  color: var(--c-galvanized);
  margin-right: 6px;
}

.arch-nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--c-brass);
  transition: width var(--dur-fast) var(--ease-press);
}

.arch-nav-link:hover {
  color: #fff;
}

.arch-nav-link:hover::after {
  width: 100%;
}

.arch-header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Live Status Dot */
.arch-status {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-zinc);
}

@media (min-width: 1200px) {
  .arch-status {
    display: flex;
  }
}

.arch-status-dot {
  width: 7px;
  height: 7px;
  background-color: var(--c-spark);
  display: inline-block;
  box-shadow: 0 0 8px var(--c-spark) !important;
}

.arch-header-phone {
  display: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--c-daylight);
}

@media (min-width: 768px) {
  .arch-header-phone {
    display: inline-block;
  }
}

.arch-header-phone:hover {
  color: var(--c-brass);
}

/* Mobile Hamburger trigger */
.arch-mobile-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(230, 228, 223, 0.3);
  color: var(--c-daylight);
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  cursor: pointer;
}

@media (min-width: 992px) {
  .arch-mobile-toggle {
    display: none;
  }
}

/* Mobile Nav Drawer */
.arch-mobile-menu {
  position: fixed;
  top: 76px;
  left: 0;
  width: 100%;
  height: calc(100vh - 76px);
  background-color: var(--c-forge);
  border-top: 1px solid rgba(230, 228, 223, 0.12);
  display: none;
  flex-direction: column;
  padding: 32px 24px;
  padding-bottom: calc(100px + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  z-index: 1005;
}

.arch-mobile-menu.is-active,
.arch-mobile-menu.active {
  display: flex;
}

.arch-mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.arch-mobile-menu-link {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--c-daylight);
  line-height: 1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid rgba(230, 228, 223, 0.1);
  padding-bottom: 12px;
}

.arch-mobile-menu-link .idx {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--c-brass);
}

/* ==========================================================================
   2. HERO SECTION (T0: Ocak / Forge)
   ========================================================================== */
.arch-hero {
  position: relative;
  min-height: 100vh;
  padding-top: 120px;
  padding-bottom: 80px;
  display: flex;
  align-items: flex-end;
  background-color: var(--c-forge);
  overflow: hidden;
}

.arch-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.arch-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.42) contrast(1.15);
  transform: scale(1.02);
  transition: transform 8s ease-out;
}

.arch-hero:hover .arch-hero-bg img {
  transform: scale(1.06);
}

.arch-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: linear-gradient(180deg, rgba(14, 15, 16, 0.7) 0%, rgba(14, 15, 16, 0.3) 40%, rgba(14, 15, 16, 0.95) 100%);
}

.arch-hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
}

.arch-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(230, 228, 223, 0.16);
  margin-bottom: 32px;
}

.arch-hero-location {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-zinc);
}

.arch-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: flex-end;
}

@media (min-width: 992px) {
  .arch-hero-grid {
    grid-template-columns: 2.2fr 1fr;
    gap: 64px;
  }
}

.arch-hero-lead {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 300;
  color: var(--c-daylight);
  line-height: 1.5;
  margin-bottom: 32px;
  max-width: 440px;
}

.arch-hero-specs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-left: 2px solid var(--c-brass);
  padding-left: 16px;
  margin-bottom: 36px;
}

.arch-hero-spec-item {
  font-size: 0.85rem;
  color: var(--c-zinc);
}

.arch-hero-spec-item strong {
  color: var(--c-daylight);
  font-weight: 600;
}

.arch-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   3. SERVICES SECTION (T1-T2: Editorial Structural Index)
   ========================================================================== */
.arch-services {
  padding-top: clamp(64px, 10vw, 140px);
  padding-bottom: clamp(64px, 10vw, 140px);
  background-color: var(--c-mill-scale);
}

.arch-section-header {
  display: flex;
  flex-direction: column;
  margin-bottom: clamp(40px, 6vw, 80px);
}

@media (min-width: 768px) {
  .arch-section-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.arch-section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.9;
  letter-spacing: -0.01em;
  margin: 0;
  text-transform: uppercase;
}

.arch-section-subtitle {
  font-size: 1rem;
  color: var(--c-zinc);
  max-width: 380px;
  margin-top: 16px;
}

/* Service Plate Row */
.service-index {
  display: flex;
  flex-direction: column;
}

.service-plate {
  display: grid;
  grid-template-columns: 1fr;
  padding: 32px 0;
  border-top: 1px solid rgba(230, 228, 223, 0.14);
  gap: 24px;
  transition: background-color var(--dur-fast);
  text-decoration: none;
  color: inherit;
}

@media (min-width: 768px) {
  .service-plate {
    grid-template-columns: 60px 1.5fr 1fr 140px 48px;
    align-items: center;
    gap: 32px;
    padding: 36px 16px;
  }
}

.service-plate:hover {
  background-color: rgba(255, 106, 26, 0.04);
}

.service-idx {
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-brass);
}

.service-plate:hover .service-idx {
  color: var(--c-spark);
}

.service-name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1;
  color: var(--c-daylight);
  margin: 0;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--c-zinc);
  margin: 0;
  line-height: 1.5;
}

.service-spec {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-galvanized);
}

.service-plate-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

@media (min-width: 768px) {
  .service-plate-img {
    display: none; /* Can reveal on hover via JS */
  }
}

.service-plate-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.1) brightness(0.9);
}

.service-arrow {
  font-size: 1.5rem;
  color: var(--c-zinc);
  transition: transform var(--dur-fast) var(--ease-press), color var(--dur-fast);
  text-align: right;
}

.service-plate:hover .service-arrow {
  transform: translateX(8px);
  color: var(--c-spark);
}

/* ==========================================================================
   4. SELECTED WORK / PROJECTS (T4: Gün Işığı / Daylight)
   ========================================================================== */
.arch-projects {
  padding-top: clamp(64px, 10vw, 140px);
  padding-bottom: clamp(64px, 10vw, 140px);
  background-color: var(--c-daylight);
  color: var(--c-graphite);
}

.arch-projects .arch-section-title {
  color: var(--c-graphite);
}

.arch-projects .arch-section-subtitle {
  color: var(--c-graphite-soft);
}

.arch-projects .section-tag {
  color: var(--c-brass-deep);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 768px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 48px 36px;
  }
}

@media (min-width: 1200px) {
  .project-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 64px 40px;
  }
}

.project-card {
  display: flex;
  flex-direction: column;
  border-top: 2px solid rgba(28, 28, 26, 0.2);
  padding-top: 20px;
  transition: transform var(--dur-base) var(--ease-press);
}

.project-img-box {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: 20px;
  background-color: #d8d6d0;
}

.project-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05);
  transition: transform 0.6s var(--ease-quench);
}

.project-card:hover .project-img-box img {
  transform: scale(1.05);
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.project-location {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--c-brass-deep);
}

.project-year {
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  color: var(--c-graphite-soft);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1;
  color: var(--c-graphite);
  margin: 0 0 10px 0;
}

.project-specs {
  font-size: 0.875rem;
  color: var(--c-graphite-soft);
  margin-bottom: 16px;
  line-height: 1.4;
}

/* ==========================================================================
   5. PROCESS (Süreç: 4 Adım)
   ========================================================================== */
.arch-process {
  padding-top: clamp(64px, 10vw, 140px);
  padding-bottom: clamp(64px, 10vw, 140px);
  background-color: var(--c-blued-steel);
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-station {
  border-top: 1px solid rgba(230, 228, 223, 0.2);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
}

.process-num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  line-height: 0.8;
  color: var(--c-galvanized);
  margin-bottom: 16px;
  transition: color var(--dur-fast);
}

.process-station:hover .process-num {
  color: var(--c-spark);
}

.process-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--c-daylight);
  margin: 0 0 12px 0;
}

.process-text {
  font-size: 0.95rem;
  color: var(--c-zinc);
  line-height: 1.6;
  margin-bottom: 16px;
}

.process-duration {
  margin-top: auto;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-brass);
}

/* ==========================================================================
   6. ABOUT / ATÖLYE SECTION
   ========================================================================== */
.arch-about {
  padding-top: clamp(64px, 10vw, 140px);
  padding-bottom: clamp(64px, 10vw, 140px);
  background-color: var(--c-forge);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 80px;
  }
}

.about-img-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.about-img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.1) brightness(0.9);
}

.about-badge-plate {
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: var(--c-mill-scale);
  border-top: 2px solid var(--c-brass);
  padding: 16px 24px;
}

.about-badge-plate span {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-daylight);
}

.about-text-content {
  display: flex;
  flex-direction: column;
}

.about-body-lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--c-daylight);
  line-height: 1.6;
  margin-bottom: 24px;
}

.about-body-text {
  font-size: 1rem;
  color: var(--c-zinc);
  line-height: 1.7;
  margin-bottom: 32px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  border-top: 1px solid rgba(230, 228, 223, 0.14);
  padding-top: 24px;
}

@media (min-width: 480px) {
  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-val {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  font-weight: 900;
  line-height: 0.9;
  color: var(--c-brass);
}

.stat-lbl {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-zinc);
  margin-top: 6px;
}

/* ==========================================================================
   7. CTA / QUOTE FORM (T5: Astar / Primer)
   ========================================================================== */
.arch-cta {
  padding-top: clamp(64px, 10vw, 140px);
  padding-bottom: clamp(64px, 10vw, 140px);
  background-color: var(--c-primer);
  color: var(--c-graphite);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 992px) {
  .cta-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
  }
}

.cta-left {
  display: flex;
  flex-direction: column;
}

.cta-left .arch-section-title {
  color: var(--c-graphite);
  margin-bottom: 24px;
}

.cta-left p {
  font-size: 1.1rem;
  color: var(--c-graphite-soft);
  line-height: 1.6;
  margin-bottom: 36px;
}

.cta-direct-box {
  background-color: #fff;
  border-left: 3px solid var(--c-spark);
  padding: 24px;
  margin-top: auto;
}

.cta-direct-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-graphite);
  margin-bottom: 8px;
}

.cta-direct-text {
  font-size: 0.95rem;
  color: var(--c-graphite-soft);
  margin: 0 0 16px 0;
}

/* Quote Form Inputs */
.arch-form {
  background-color: #fff;
  padding: clamp(24px, 4vw, 48px);
  border-top: 3px solid var(--c-graphite);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-graphite);
  margin-bottom: 8px;
}

.arch-input,
.arch-select,
.arch-textarea {
  width: 100%;
  background-color: var(--c-primer);
  border: 1px solid rgba(28, 28, 26, 0.2);
  border-bottom: 2px solid var(--c-graphite);
  color: var(--c-graphite);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 14px 16px;
  outline: none;
  transition: border-color var(--dur-fast), background-color var(--dur-fast);
}

.arch-input:focus,
.arch-select:focus,
.arch-textarea:focus {
  background-color: #fff;
  border-bottom-color: var(--c-spark);
}

.arch-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ==========================================================================
   8. FOOTER (T0: Ocak / Forge)
   ========================================================================== */
.arch-footer {
  background-color: var(--c-forge);
  color: var(--c-daylight);
  padding-top: clamp(64px, 8vw, 100px);
  padding-bottom: 40px;
  border-top: 1px solid rgba(230, 228, 223, 0.12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: clamp(48px, 6vw, 80px);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 32px;
  }
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--c-brass);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--c-zinc);
  font-size: 0.9rem;
  transition: color var(--dur-fast);
}

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

.footer-info-item {
  font-size: 0.9rem;
  color: var(--c-zinc);
  margin-bottom: 12px;
  line-height: 1.6;
}

.footer-info-item strong {
  display: block;
  color: var(--c-daylight);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.footer-mega-word {
  font-family: var(--font-display);
  font-size: clamp(3rem, 12vw, 10rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.8;
  color: rgba(230, 228, 223, 0.05);
  user-select: none;
  margin-bottom: 32px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(230, 228, 223, 0.1);
  font-size: 0.8rem;
  color: var(--c-galvanized);
}

/* ==========================================================================
   9. MOBILE THUMB-ZONE BAR (Signature Mobile Element)
   ========================================================================== */
.arch-mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: calc(64px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background-color: var(--c-mill-scale);
  border-top: 1px solid rgba(230, 228, 223, 0.16);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  z-index: 1001;
}

@media (min-width: 992px) {
  .arch-mobile-bar {
    display: none;
  }
}

.mobile-bar-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--c-daylight);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-right: 1px solid rgba(230, 228, 223, 0.12);
  transition: background-color var(--dur-fast);
}

.mobile-bar-action:last-child {
  border-right: none;
}

.mobile-bar-action i {
  font-size: 1.1rem;
  color: var(--c-brass);
}

.mobile-bar-action.highlight {
  background-color: rgba(255, 106, 26, 0.12);
  color: #fff;
}

.mobile-bar-action.highlight i {
  color: var(--c-spark);
}

.mobile-bar-action:active {
  background-color: rgba(201, 162, 74, 0.2);
}

/* 2-Column Mobile Bar Support */
.arch-mobile-bar:has(> :nth-child(2):last-child),
.arch-mobile-bar.two-col {
  grid-template-columns: repeat(2, 1fr);
}

.arch-mobile-bar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--c-daylight);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-right: 1px solid rgba(230, 228, 223, 0.12);
  transition: background-color var(--dur-fast);
}

.arch-mobile-bar-btn:last-child {
  border-right: none;
}

.arch-mobile-bar-btn i {
  font-size: 1.15rem;
}

.arch-mobile-bar-btn.call i {
  color: var(--c-brass);
}

.arch-mobile-bar-btn.whatsapp {
  color: #25D366;
}

.arch-mobile-bar-btn.whatsapp i {
  color: #25D366;
}

.arch-mobile-bar-btn:active {
  background-color: rgba(201, 162, 74, 0.2);
}

/* Floating WhatsApp button override for desktop */
.whatsapp-desktop-float {
  display: none;
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 990;
  background-color: #25d366;
  color: #fff;
  width: 56px;
  height: 56px;
  align-items: center;
  justify-content: center;
  clip-path: var(--chamfer-s);
  transition: transform var(--dur-fast) var(--ease-press);
}

@media (min-width: 992px) {
  .whatsapp-desktop-float {
    display: flex;
  }
}

.whatsapp-desktop-float:hover {
  transform: scale(1.08);
  color: #fff;
}

/* ==========================================================================
   10. SERVICE DETAIL PAGES (Hizmet Detay Sayfaları)
   ========================================================================== */
.service-detail-hero {
  padding-top: calc(76px + clamp(40px, 6vw, 80px));
  padding-bottom: clamp(40px, 6vw, 70px);
  background-color: var(--c-forge);
  border-bottom: 1px solid rgba(230, 228, 223, 0.12);
}

.service-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-zinc);
  margin-bottom: 24px;
}

.service-breadcrumb a {
  color: var(--c-zinc);
  transition: color var(--dur-fast);
}

.service-breadcrumb a:hover {
  color: var(--c-brass);
}

.service-breadcrumb-sep {
  color: var(--c-cold-rolled);
}

.service-detail-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 6.2rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--c-daylight);
  margin: 0 0 24px 0;
}

.service-detail-lead {
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  font-weight: 400;
  color: var(--c-zinc);
  line-height: 1.6;
  max-width: 860px;
  margin-bottom: 36px;
}

/* Technical Specification Ribbon */
.service-spec-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  border-top: 1px solid rgba(230, 228, 223, 0.12);
  border-bottom: 1px solid rgba(230, 228, 223, 0.12);
  padding: 24px 0;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .service-spec-bar {
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
  }
}

.spec-bar-item {
  display: flex;
  flex-direction: column;
}

.spec-bar-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-brass);
  margin-bottom: 4px;
}

.spec-bar-value {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-daylight);
}

/* Service Main Content Grid */
.service-main-section {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(64px, 9vw, 120px);
  background-color: var(--c-mill-scale);
}

.service-layout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 992px) {
  .service-layout-grid {
    grid-template-columns: 1.8fr 1.2fr;
    gap: 64px;
    align-items: start;
  }
}

.service-main-visual {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--c-cold-rolled);
  border: 1px solid rgba(230, 228, 223, 0.12);
  margin-bottom: 40px;
  position: relative;
}

.service-main-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05);
}

.service-visual-tag {
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: rgba(14, 15, 16, 0.92);
  padding: 10px 16px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-daylight);
  border-top: 2px solid var(--c-brass);
}

.service-prose h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.95;
  color: var(--c-daylight);
  margin: 48px 0 20px 0;
}

.service-prose h2:first-child {
  margin-top: 0;
}

.service-prose h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1;
  color: var(--c-brass);
  margin: 36px 0 16px 0;
}

.service-prose p {
  font-size: 1.02rem;
  color: var(--c-zinc);
  line-height: 1.7;
  margin-bottom: 24px;
}

.service-prose strong {
  color: var(--c-daylight);
}

.service-prose ul {
  list-style: none;
  padding: 0;
  margin: 0 0 32px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-prose ul li {
  position: relative;
  padding-left: 24px;
  color: var(--c-zinc);
  font-size: 0.98rem;
  line-height: 1.6;
}

.service-prose ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--c-spark);
}

/* Feature Matrix Cards */
.feature-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 32px 0 48px 0;
}

@media (min-width: 640px) {
  .feature-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-cell {
  background-color: var(--c-forge);
  border-left: 2px solid var(--c-brass);
  padding: 24px;
}

.feature-cell-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-daylight);
  margin-bottom: 8px;
}

.feature-cell-desc {
  font-size: 0.88rem;
  color: var(--c-zinc);
  line-height: 1.5;
  margin: 0;
}

/* Technical Specification Table */
.spec-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 28px 0 44px 0;
  border-top: 1px solid rgba(230, 228, 223, 0.16);
}

.arch-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.arch-spec-table th {
  padding: 14px 16px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-brass);
  border-bottom: 1px solid rgba(230, 228, 223, 0.2);
  background-color: var(--c-forge);
}

.arch-spec-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(230, 228, 223, 0.08);
  color: var(--c-zinc);
}

.arch-spec-table tr:hover td {
  background-color: rgba(230, 228, 223, 0.02);
  color: var(--c-daylight);
}

.arch-spec-table td:first-child {
  font-weight: 600;
  color: var(--c-daylight);
  width: 38%;
}

/* Process Timeline List */
.service-step-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 28px 0 44px 0;
}

.service-step-item {
  display: flex;
  gap: 20px;
  background-color: var(--c-forge);
  padding: 20px 24px;
  border-left: 1px solid rgba(230, 228, 223, 0.16);
}

.service-step-idx {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--c-brass);
  line-height: 1;
}

.service-step-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-daylight);
  margin: 0 0 6px 0;
}

.service-step-content p {
  font-size: 0.88rem;
  color: var(--c-zinc);
  line-height: 1.5;
  margin: 0;
}

/* Sticky Service Sidebar */
.service-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: sticky;
  top: 96px;
}

.sidebar-card {
  background-color: var(--c-forge);
  border-top: 3px solid var(--c-brass);
  padding: 32px 28px;
}

.sidebar-card-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--c-daylight);
  margin: 0 0 10px 0;
}

.sidebar-card-sub {
  font-size: 0.85rem;
  color: var(--c-zinc);
  line-height: 1.5;
  margin-bottom: 24px;
}

.sidebar-card .arch-input,
.sidebar-card .arch-select,
.sidebar-card .arch-textarea {
  background-color: var(--c-mill-scale);
  border: 1px solid rgba(230, 228, 223, 0.16);
  border-bottom: 2px solid var(--c-brass);
  color: var(--c-daylight);
}

.sidebar-card .arch-input:focus,
.sidebar-card .arch-select:focus,
.sidebar-card .arch-textarea:focus {
  background-color: #121314;
  border-bottom-color: var(--c-spark);
  outline: none;
}

.sidebar-card .form-group label {
  color: var(--c-zinc);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.sidebar-direct-contacts {
  border-top: 1px solid rgba(230, 228, 223, 0.12);
  padding-top: 20px;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sidebar-contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--c-daylight);
  font-weight: 600;
}

.sidebar-contact-link i {
  color: var(--c-brass);
  font-size: 1.1rem;
}

.sidebar-contact-link:hover {
  color: var(--c-brass);
}

/* Service Nav List in Sidebar */
.sidebar-service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.sidebar-service-item {
  border-bottom: 1px solid rgba(230, 228, 223, 0.08);
}

.sidebar-service-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-zinc);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: all var(--dur-fast);
}

.sidebar-service-link:hover,
.sidebar-service-link.active {
  color: var(--c-brass);
  padding-left: 8px;
}

.sidebar-service-link .badge-idx {
  font-size: 0.72rem;
  color: var(--c-galvanized);
  font-weight: 700;
}

.sidebar-service-link.active .badge-idx {
  color: var(--c-spark);
}

/* ==========================================================================
   11. FAQ ACCORDION COMPONENT (Sıkça Sorulan Sorular / Rich Snippets)
   ========================================================================== */
.arch-faq {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 32px 0 48px 0;
}

.arch-faq-item {
  background-color: var(--c-forge);
  border: 1px solid rgba(230, 228, 223, 0.12);
  border-left: 3px solid var(--c-brass);
  transition: border-color var(--dur-fast);
}

.arch-faq-item[open] {
  border-left-color: var(--c-spark);
}

.arch-faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--c-daylight);
  user-select: none;
}

.arch-faq-summary::-webkit-details-marker {
  display: none;
}

.arch-faq-summary::after {
  content: '+';
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--c-brass);
  transition: transform var(--dur-fast), color var(--dur-fast);
  line-height: 1;
  margin-left: 16px;
}

.arch-faq-item[open] .arch-faq-summary::after {
  content: '−';
  color: var(--c-spark);
}

.arch-faq-body {
  padding: 0 24px 24px 24px;
  color: var(--c-zinc);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px solid rgba(230, 228, 223, 0.08);
  margin-top: 4px;
}

.arch-faq-body p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   12. SERVICES CATALOG GRID (umraniye-hizmetler.html)
   ========================================================================== */
.services-plates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .services-plates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .services-plates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.services-plates-grid .service-plate {
  display: flex;
  flex-direction: column;
  background-color: var(--c-forge);
  border: 1px solid rgba(230, 228, 223, 0.12);
  border-top: 3px solid var(--c-brass);
  padding: 0;
  transition: transform var(--dur-fast), border-color var(--dur-fast);
}

.services-plates-grid .service-plate:hover {
  border-top-color: var(--c-spark);
  transform: translateY(-4px);
}

.service-plate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(230, 228, 223, 0.08);
}

.service-plate-idx {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--c-brass);
  line-height: 1;
}

.service-plate-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-zinc);
}

.service-plate-img-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: #000;
}

.service-plate-img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  filter: contrast(1.05) brightness(0.92);
}

.services-plates-grid .service-plate:hover .service-plate-img-frame img {
  transform: scale(1.04);
}

.service-plate-body {
  padding: 28px 24px 32px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-plate-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--c-daylight);
  line-height: 1.05;
  margin: 0 0 14px 0;
}

.service-plate-desc {
  font-size: 0.92rem;
  color: var(--c-zinc);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-plate-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.service-plate-specs span {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-brass);
  background-color: rgba(201, 162, 74, 0.08);
  padding: 6px 10px;
  border: 1px solid rgba(201, 162, 74, 0.2);
}

.service-plate-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-daylight);
  text-decoration: none;
  transition: color var(--dur-fast);
  margin-top: auto;
}

.service-plate-link:hover {
  color: var(--c-spark);
}