/* ==========================================================================
   MK ÇATI PREMIUM DESIGN SYSTEM – MODERN LUXURY INDUSTRIAL & ARCHITECTURAL
   Denizli, Türkiye | https://mk-cati.com
   ========================================================================== */

:root {
  /* Progressive enhancement for intrinsic size animations (accordions, drawers) */
  interpolate-size: allow-keywords;

  /* Brand Color Palette */
  --mk-anthracite: #15191D;
  --mk-deep-black: #0B0E11;
  --mk-surface-dark: #1C2127;
  --mk-surface-elevated: #232A31;
  --mk-warm-white: #F7F7F4;
  --mk-pure-white: #FFFFFF;
  --mk-copper: #D97732;
  --mk-copper-hover: #E58642;
  --mk-copper-subtle: rgba(217, 119, 50, 0.14);
  --mk-light-gray: #E8EAEC;
  --mk-text-light: #F7F7F4;
  --mk-text-muted-dark: #A0A8B2;
  --mk-text-dark: #15191D;
  --mk-text-muted-light: #525B65;
  --mk-border-dark: rgba(232, 234, 236, 0.1);
  --mk-border-light: rgba(21, 25, 29, 0.1);
  --mk-whatsapp: #25D366;
  --mk-error: #D93025;
  --mk-error-bg: rgba(217, 48, 37, 0.1);
  --mk-success: #1E8E3E;

  /* Typography */
  --mk-font-heading: 'Plus Jakarta Sans', 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mk-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Fluid Type Scale (rem + vw inside clamp) */
  --mk-fs-display: clamp(2.35rem, 1.5rem + 3.6vw, 4.5rem);
  --mk-fs-h1: clamp(2.1rem, 1.4rem + 2.8vw, 3.75rem);
  --mk-fs-h2: clamp(1.75rem, 1.2rem + 2vw, 2.85rem);
  --mk-fs-h3: clamp(1.25rem, 1.05rem + 0.8vw, 1.65rem);
  --mk-fs-h4: clamp(1.1rem, 1rem + 0.4vw, 1.3rem);
  --mk-fs-lead: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  --mk-fs-body: 1rem;
  --mk-fs-sm: 0.875rem;
  --mk-fs-xs: 0.75rem;

  /* Spacing & Layout */
  --mk-container: 1280px;
  --mk-container-wide: 1440px;
  --mk-section-py: clamp(4.5rem, 3rem + 5vw, 8rem);
  --mk-gap-grid: clamp(1.25rem, 1rem + 1vw, 2rem);
  --mk-radius-sm: 8px;
  --mk-radius-md: 16px;
  --mk-radius-lg: 24px;
  --mk-radius-pill: 9999px;

  /* Transitions & Apple-grade Easing */
  --mk-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --mk-ease-std: cubic-bezier(0.25, 1, 0.5, 1);
  --mk-duration: 0.55s;

  /* Shadows */
  --mk-shadow-sm: 0 4px 20px -2px rgba(11, 14, 17, 0.06);
  --mk-shadow-lg: 0 24px 48px -12px rgba(11, 14, 17, 0.28);
  --mk-shadow-copper: 0 12px 32px -6px rgba(217, 119, 50, 0.35);
}

/* ==========================================================================
   1. RESET & BASE ACCESSIBILITY
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--mk-font-body);
  font-size: var(--mk-fs-body);
  line-height: 1.65;
  color: var(--mk-text-dark);
  background-color: var(--mk-warm-white);
  text-align: start;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}

/* Typography Rules (Modern Web Guidance Compliant) */
h1, h2, h3, h4, h5, h6 {
  margin-block: 0 0.65em;
  font-family: var(--mk-font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h1 { font-size: var(--mk-fs-h1); }
h2 { font-size: var(--mk-fs-h2); }
h3 { font-size: var(--mk-fs-h3); line-height: 1.25; }
h4 { font-size: var(--mk-fs-h4); line-height: 1.3; }

p,
li,
blockquote {
  margin-block: 0 1.15em;
  text-wrap: pretty;
  overflow-wrap: break-word;
}

.mk-prose p,
.mk-prose li {
  max-inline-size: 75ch;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s var(--mk-ease-std);
}

:focus-visible {
  outline: 2px solid var(--mk-copper);
  outline-offset: 3px;
}

/* Skip Link for Screen Readers & Keyboard Navigation */
.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: 1rem;
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  background: var(--mk-copper);
  color: var(--mk-pure-white);
  font-weight: 600;
  border-radius: var(--mk-radius-sm);
  transition: inset-block-start 0.2s ease;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

/* ==========================================================================
   2. LAYOUT CONTAINERS & SECTIONS
   ========================================================================== */
.mk-container {
  inline-size: min(100% - 2.5rem, var(--mk-container));
  margin-inline: auto;
}

.mk-container--wide {
  inline-size: min(100% - 2.5rem, var(--mk-container-wide));
  margin-inline: auto;
}

.mk-section {
  padding-block: var(--mk-section-py);
  position: relative;
}

.mk-section--dark {
  background-color: var(--mk-deep-black);
  color: var(--mk-text-light);
}

.mk-section--anthracite {
  background-color: var(--mk-anthracite);
  color: var(--mk-text-light);
}

.mk-section--warm {
  background-color: var(--mk-warm-white);
  color: var(--mk-text-dark);
}

.mk-section--white {
  background-color: var(--mk-pure-white);
  color: var(--mk-text-dark);
}

/* Section Headers */
.mk-section-header {
  max-inline-size: 760px;
  margin-block-end: clamp(2.5rem, 2rem + 2vw, 4rem);
}

.mk-section-header--center {
  margin-inline: auto;
  text-align: center;
}

.mk-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  margin-block-end: 1rem;
  font-size: var(--mk-fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mk-copper);
  background: var(--mk-copper-subtle);
  border: 1px solid rgba(217, 119, 50, 0.3);
  border-radius: var(--mk-radius-pill);
  /* Do not apply text-wrap: balance on visible bordered box */
  text-wrap: wrap;
}

.mk-eyebrow::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background-color: var(--mk-copper);
}

.mk-lead {
  font-size: var(--mk-fs-lead);
  line-height: 1.6;
  color: var(--mk-text-muted-light);
  max-inline-size: 68ch;
}

.mk-section--dark .mk-lead,
.mk-section--anthracite .mk-lead {
  color: var(--mk-text-muted-dark);
}

/* ==========================================================================
   3. BUTTONS & INTERACTIVE CTAs
   ========================================================================== */
.mk-btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.mk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.95rem 1.75rem;
  font-family: var(--mk-font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--mk-radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  text-wrap: wrap;
  transition:
    background-color 0.3s var(--mk-ease-out),
    border-color 0.3s var(--mk-ease-out),
    color 0.3s var(--mk-ease-out),
    box-shadow 0.3s var(--mk-ease-out),
    translate 0.3s var(--mk-ease-out);
}

.mk-btn svg {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  flex-shrink: 0;
  transition: translate 0.3s var(--mk-ease-out);
}

.mk-btn:hover svg {
  translate: 3px 0;
}

.mk-btn--primary {
  background-color: var(--mk-copper);
  color: var(--mk-pure-white);
  box-shadow: var(--mk-shadow-copper);
}

.mk-btn--primary:hover,
.mk-btn--primary:focus-visible {
  background-color: var(--mk-copper-hover);
  color: var(--mk-pure-white);
  translate: 0 -2px;
}

.mk-btn--secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--mk-pure-white);
  border-color: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(12px);
}

.mk-btn--secondary:hover {
  background-color: rgba(255, 255, 255, 0.16);
  border-color: var(--mk-pure-white);
  translate: 0 -2px;
}

.mk-btn--outline-dark {
  background-color: transparent;
  color: var(--mk-text-dark);
  border-color: rgba(21, 25, 29, 0.25);
}

.mk-btn--outline-dark:hover {
  background-color: var(--mk-anthracite);
  color: var(--mk-pure-white);
  border-color: var(--mk-anthracite);
}

.mk-btn--whatsapp {
  background-color: rgba(37, 211, 102, 0.14);
  color: #38E578;
  border-color: rgba(37, 211, 102, 0.35);
}

.mk-btn--whatsapp:hover {
  background-color: var(--mk-whatsapp);
  color: var(--mk-deep-black);
  translate: 0 -2px;
}

/* ==========================================================================
   4. STICKY HEADER & NAVIGATION (APPLE-GRADE GLASSMORPHISM)
   ========================================================================== */
.mk-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 1000;
  background-color: rgba(11, 14, 17, 0.88);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-block-end: 1px solid var(--mk-border-dark);
  transition: background-color 0.3s ease, padding-block 0.3s ease;
}

.mk-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-block-size: 4.75rem;
}

.mk-header__logo {
  flex-shrink: 0;
}

.mk-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--mk-pure-white);
  font-family: var(--mk-font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  white-space: nowrap;
  flex-shrink: 0;
}

.mk-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  min-inline-size: 2.75rem;
  flex-shrink: 0;
}

.mk-brand__mark svg {
  inline-size: 100%;
  block-size: 100%;
  flex-shrink: 0;
}

.mk-brand__text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.mk-brand__title {
  display: block;
  font-size: 1.3rem;
  line-height: 1.05;
  white-space: nowrap;
}

.mk-brand__location {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mk-text-muted-dark);
  white-space: nowrap;
}

.mk-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.mk-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.mk-nav__list > li {
  position: relative;
  margin: 0;
}

.mk-nav__list a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.9rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(247, 247, 244, 0.85);
  border-radius: var(--mk-radius-sm);
}

.mk-nav__list a:hover,
.mk-nav__list .current-menu-item > a {
  color: var(--mk-pure-white);
  background-color: rgba(255, 255, 255, 0.06);
}

/* Submenu Dropdown */
.mk-nav__list .sub-menu {
  position: absolute;
  inset-block-start: 100%;
  inset-inline-start: 0;
  min-inline-size: 240px;
  padding: 0.5rem;
  margin: 0;
  list-style: none;
  background-color: var(--mk-anthracite);
  border: 1px solid var(--mk-border-dark);
  border-radius: var(--mk-radius-md);
  box-shadow: var(--mk-shadow-lg);
  opacity: 0;
  visibility: hidden;
  translate: 0 8px;
  transition: opacity 0.25s var(--mk-ease-out), translate 0.25s var(--mk-ease-out), visibility 0.25s;
}

.mk-nav__list li:hover > .sub-menu,
.mk-nav__list li:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  translate: 0 0;
}

.mk-nav__list .sub-menu li {
  margin: 0;
}

.mk-nav__list .sub-menu a {
  display: flex;
  inline-size: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 0.88rem;
}

.mk-nav__list .sub-menu a:hover {
  background-color: var(--mk-copper-subtle);
  color: var(--mk-copper);
}

.mk-header__actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.mk-header__actions .mk-btn {
  white-space: nowrap;
}

.mk-nav__mobile-actions {
  display: none;
}

.mk-header__mobile-call {
  display: none;
  align-items: center;
  justify-content: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  min-inline-size: 2.75rem;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--mk-copper-subtle);
  border: 1px solid rgba(217, 119, 50, 0.45);
  color: var(--mk-copper);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.mk-header__mobile-call svg {
  inline-size: 1.2rem;
  block-size: 1.2rem;
  flex-shrink: 0;
}

.mk-header__mobile-call:hover {
  background: var(--mk-copper);
  color: var(--mk-pure-white);
}

/* Mobile Menu Toggle */
.mk-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  min-inline-size: 2.75rem;
  padding: 0;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  color: var(--mk-pure-white);
  cursor: pointer;
}

.mk-menu-toggle svg {
  inline-size: 1.35rem;
  block-size: 1.35rem;
  flex-shrink: 0;
}

.mk-menu-toggle__icon-close {
  display: none;
}

.mk-menu-toggle[aria-expanded="true"] {
  background: var(--mk-copper);
  border-color: var(--mk-copper);
}

.mk-menu-toggle[aria-expanded="true"] .mk-menu-toggle__icon-open {
  display: none;
}

.mk-menu-toggle[aria-expanded="true"] .mk-menu-toggle__icon-close {
  display: block;
}

/* ==========================================================================
   5. CINEMATIC HERO SECTION
   ========================================================================== */
.mk-hero {
  position: relative;
  min-block-size: calc(92dvh - 5rem);
  display: flex;
  align-items: center;
  padding-block: clamp(4rem, 6vw, 7rem);
  background-color: var(--mk-deep-black);
  color: var(--mk-pure-white);
  overflow: clip;
}

.mk-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.mk-hero__bg img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  opacity: 0.42;
  scale: 1.03;
  transition: scale 8s var(--mk-ease-out);
}

.mk-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 25%, rgba(217, 119, 50, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(11, 14, 17, 0.75) 0%, rgba(11, 14, 17, 0.92) 100%);
  z-index: 1;
}

.mk-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
}

.mk-hero__title {
  font-size: var(--mk-fs-display);
  line-height: 1.06;
  letter-spacing: -0.035em;
  margin-block-end: 1.25rem;
}

.mk-hero__title span {
  color: var(--mk-copper);
}

.mk-hero__subtitle {
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  color: rgba(247, 247, 244, 0.86);
  max-inline-size: 56ch;
  margin-block-end: 2.25rem;
}

.mk-hero__badges {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-block-start: 3rem;
  padding-block-start: 2rem;
  border-block-start: 1px solid var(--mk-border-dark);
}

.mk-hero__badge {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.mk-hero__badge-icon {
  display: inline-grid;
  place-content: center;
  inline-size: 2.25rem;
  block-size: 2.25rem;
  border-radius: var(--mk-radius-sm);
  background: var(--mk-copper-subtle);
  color: var(--mk-copper);
  flex-shrink: 0;
}

.mk-hero__badge-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--mk-pure-white);
  margin-block-end: 0.15rem;
}

.mk-hero__badge-desc {
  font-size: 0.82rem;
  color: var(--mk-text-muted-dark);
  margin: 0;
}

/* Architectural Showcase Card inside Hero */
.mk-hero__showcase {
  background: rgba(28, 33, 39, 0.78);
  border: 1px solid var(--mk-border-dark);
  border-radius: var(--mk-radius-lg);
  padding: 2rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--mk-shadow-lg);
}

/* ==========================================================================
   6. MODERN CARDS & SUBGRID SYSTEM (SERVICES & TRUST)
   ========================================================================== */
.mk-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: var(--mk-gap-grid);
}

.mk-service-card {
  container: service-card / inline-size;
  display: flex;
  flex-direction: column;
  background-color: var(--mk-pure-white);
  border: 1px solid var(--mk-border-light);
  border-radius: var(--mk-radius-md);
  overflow: clip;
  box-shadow: var(--mk-shadow-sm);
  transition:
    translate 0.4s var(--mk-ease-out),
    box-shadow 0.4s var(--mk-ease-out),
    border-color 0.4s var(--mk-ease-out);
}

.mk-section--dark .mk-service-card,
.mk-section--anthracite .mk-service-card {
  background-color: var(--mk-surface-dark);
  border-color: var(--mk-border-dark);
}

.mk-service-card:hover {
  translate: 0 -6px;
  border-color: var(--mk-copper);
  box-shadow: var(--mk-shadow-lg);
}

.mk-service-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: clip;
  background-color: var(--mk-anthracite);
}

.mk-service-card__media img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  transition: scale 0.65s var(--mk-ease-out);
}

.mk-service-card:hover .mk-service-card__media img {
  scale: 1.06;
}

.mk-service-card__number {
  position: absolute;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  padding: 0.25rem 0.65rem;
  font-family: var(--mk-font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(11, 14, 17, 0.75);
  color: var(--mk-copper);
  border: 1px solid rgba(217, 119, 50, 0.35);
  border-radius: var(--mk-radius-pill);
  backdrop-filter: blur(8px);
}

.mk-service-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.75rem;
}

.mk-service-card__title {
  /* Fallback for browsers that do not support container units */
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  margin-block-end: 0.75rem;
}

@supports (font-size: 1cqi) {
  .mk-service-card__title {
    /* Use container units where supported (max <= 2.5x min) */
    font-size: clamp(1.15rem, 4.5cqi, 1.45rem);
  }
}

.mk-service-card__desc {
  color: var(--mk-text-muted-light);
  font-size: 0.95rem;
  margin-block-end: 1.5rem;
  flex: 1;
}

.mk-section--dark .mk-service-card__desc,
.mk-section--anthracite .mk-service-card__desc {
  color: var(--mk-text-muted-dark);
}

.mk-service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mk-font-heading);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--mk-copper);
}

.mk-service-card__link svg {
  inline-size: 1rem;
  block-size: 1rem;
  transition: translate 0.3s var(--mk-ease-out);
}

.mk-service-card:hover .mk-service-card__link svg {
  translate: 4px 0;
}

/* ==========================================================================
   7. ASYMMETRIC SPLIT LAYOUT & TRUST GRID
   ========================================================================== */
.mk-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.mk-split__visual {
  position: relative;
  border-radius: var(--mk-radius-lg);
  overflow: clip;
  aspect-ratio: 4 / 3;
  background-color: var(--mk-anthracite);
  box-shadow: var(--mk-shadow-lg);
}

.mk-feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-block: 2rem;
  padding: 0;
  list-style: none;
}

.mk-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.15rem;
  background-color: var(--mk-pure-white);
  border: 1px solid var(--mk-border-light);
  border-radius: var(--mk-radius-md);
  margin: 0;
}

.mk-section--dark .mk-feature-item,
.mk-section--anthracite .mk-feature-item {
  background-color: var(--mk-surface-dark);
  border-color: var(--mk-border-dark);
}

.mk-feature-item__icon {
  display: inline-grid;
  place-content: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border-radius: var(--mk-radius-sm);
  background: var(--mk-copper-subtle);
  color: var(--mk-copper);
  flex-shrink: 0;
}

/* ==========================================================================
   8. 4-STEP PROCESS TIMELINE
   ========================================================================== */
.mk-process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
  position: relative;
}

.mk-process-step {
  position: relative;
  padding: 2rem 1.5rem;
  background-color: var(--mk-surface-dark);
  border: 1px solid var(--mk-border-dark);
  border-radius: var(--mk-radius-md);
  transition: border-color 0.3s ease, translate 0.3s var(--mk-ease-out);
}

.mk-process-step:hover {
  border-color: var(--mk-copper);
  translate: 0 -4px;
}

.mk-process-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 3rem;
  block-size: 3rem;
  margin-block-end: 1.25rem;
  font-family: var(--mk-font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--mk-copper);
  background: var(--mk-copper-subtle);
  border: 1px solid rgba(217, 119, 50, 0.35);
  border-radius: 50%;
}

/* ==========================================================================
   9. INTERACTIVE BEFORE / AFTER COMPARISON SLIDER
   ========================================================================== */
.mk-ba-slider {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--mk-radius-md);
  overflow: clip;
  user-select: none;
  background-color: var(--mk-deep-black);
  border: 1px solid var(--mk-border-dark);
  --ba-pos: 50%;
}

.mk-ba-slider__after,
.mk-ba-slider__before {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
}

.mk-ba-slider__before {
  clip-path: inset(0 calc(100% - var(--ba-pos)) 0 0);
}

.mk-ba-slider__label {
  position: absolute;
  inset-block-end: 1rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(11, 14, 17, 0.8);
  color: var(--mk-pure-white);
  border-radius: var(--mk-radius-pill);
  z-index: 3;
}

.mk-ba-slider__label--before { inset-inline-start: 1rem; }
.mk-ba-slider__label--after { inset-inline-end: 1rem; background: var(--mk-copper); }

.mk-ba-slider__Divider {
  position: absolute;
  inset-block: 0;
  inset-inline-start: var(--ba-pos);
  inline-size: 3px;
  background-color: var(--mk-copper);
  translate: -50% 0;
  z-index: 4;
  pointer-events: none;
}

.mk-ba-slider__handle {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  translate: -50% -50%;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border-radius: 50%;
  background-color: var(--mk-copper);
  color: var(--mk-pure-white);
  display: grid;
  place-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
}

.mk-ba-slider__range {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 5;
  margin: 0;
}

/* ==========================================================================
   10. SEO FAQ ACCORDION (ACCESSIBLE & SMOOTH)
   ========================================================================== */
.mk-faq-list {
  display: grid;
  gap: 1rem;
  max-inline-size: 900px;
  margin-inline: auto;
}

.mk-faq-item {
  background-color: var(--mk-pure-white);
  border: 1px solid var(--mk-border-light);
  border-radius: var(--mk-radius-md);
  overflow: clip;
  transition: border-color 0.25s ease;
}

.mk-section--dark .mk-faq-item,
.mk-section--anthracite .mk-faq-item {
  background-color: var(--mk-surface-dark);
  border-color: var(--mk-border-dark);
}

.mk-faq-item[open] {
  border-color: var(--mk-copper);
}

.mk-faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  font-family: var(--mk-font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.mk-faq-question::-webkit-details-marker {
  display: none;
}

.mk-faq-icon {
  display: inline-grid;
  place-content: center;
  inline-size: 2rem;
  block-size: 2rem;
  border-radius: 50%;
  background: var(--mk-copper-subtle);
  color: var(--mk-copper);
  flex-shrink: 0;
  transition: rotate 0.3s var(--mk-ease-out);
}

.mk-faq-item[open] .mk-faq-icon {
  rotate: 45deg;
}

.mk-faq-answer {
  block-size: auto; /* Fallback for older browsers */
  block-size: calc-size(auto, size); /* Modern browsers use this */
  transition: block-size 0.3s var(--mk-ease-out);
  padding: 0 1.5rem 1.5rem;
  color: var(--mk-text-muted-light);
  border-block-start: 1px solid var(--mk-border-light);
  padding-block-start: 1rem;
}

.mk-section--dark .mk-faq-answer,
.mk-section--anthracite .mk-faq-answer {
  color: var(--mk-text-muted-dark);
  border-color: var(--mk-border-dark);
}

/* ==========================================================================
   11. LEAD GENERATION FORM & ACCESSIBLE ERROR ANNOUNCEMENT
   ========================================================================== */
.mk-form-card {
  background-color: var(--mk-pure-white);
  color: var(--mk-text-dark);
  border: 1px solid var(--mk-border-light);
  border-radius: var(--mk-radius-lg);
  padding: clamp(1.75rem, 3vw, 3rem);
  box-shadow: var(--mk-shadow-lg);
}

.mk-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

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

.mk-label {
  display: block;
  font-family: var(--mk-font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  margin-block-end: 0.45rem;
  color: var(--mk-anthracite);
}

.mk-input,
.mk-select,
.mk-textarea {
  inline-size: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--mk-font-body);
  font-size: 0.95rem;
  color: var(--mk-anthracite);
  background-color: var(--mk-warm-white);
  border: 1.5px solid rgba(21, 25, 29, 0.16);
  border-radius: var(--mk-radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.mk-input:focus,
.mk-select:focus,
.mk-textarea:focus {
  outline: none;
  border-color: var(--mk-copper);
  box-shadow: 0 0 0 3px var(--mk-copper-subtle);
  background-color: var(--mk-pure-white);
}

/* Accessible Error Announcement (:user-invalid + fallback class) */
.mk-field-error {
  display: none;
  margin-block-start: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--mk-error);
}

.mk-input:user-invalid,
.mk-select:user-invalid,
.mk-textarea:user-invalid,
.mk-input.user-invalid-fallback,
.mk-select.user-invalid-fallback,
.mk-textarea.user-invalid-fallback {
  border-color: var(--mk-error);
  background-color: var(--mk-error-bg);
}

.mk-input:user-invalid ~ .mk-field-error,
.mk-select:user-invalid ~ .mk-field-error,
.mk-textarea:user-invalid ~ .mk-field-error,
.mk-input.user-invalid-fallback ~ .mk-field-error,
.mk-select.user-invalid-fallback ~ .mk-field-error,
.mk-textarea.user-invalid-fallback ~ .mk-field-error {
  display: block;
}

.mk-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--mk-text-muted-light);
  cursor: pointer;
}

.mk-checkbox-label input[type="checkbox"] {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  margin-block-start: 0.2rem;
  accent-color: var(--mk-copper);
  flex-shrink: 0;
}

/* ==========================================================================
   12. FLOATING WHATSAPP & MOBILE STICKY BAR
   ========================================================================== */
.mk-floating-whatsapp {
  position: fixed;
  inset-block-end: 1.5rem;
  inset-inline-end: 1.5rem;
  z-index: 990;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1.25rem;
  background-color: var(--mk-whatsapp);
  color: var(--mk-deep-black);
  font-family: var(--mk-font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--mk-radius-pill);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  transition: translate 0.3s var(--mk-ease-out), box-shadow 0.3s ease;
}

.mk-floating-whatsapp:hover {
  translate: 0 -4px;
  box-shadow: 0 14px 36px rgba(37, 211, 102, 0.55);
}

/* ==========================================================================
   13. FOOTER & KVKK COOKIE BANNER
   ========================================================================== */
.mk-footer {
  background-color: var(--mk-deep-black);
  color: var(--mk-text-light);
  padding-block: 5rem 2.5rem;
  border-block-start: 1px solid var(--mk-border-dark);
}

.mk-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-block-end: 3.5rem;
  border-block-end: 1px solid var(--mk-border-dark);
}

.mk-footer__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--mk-pure-white);
  margin-block-end: 1.25rem;
}

.mk-footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.65rem;
}

.mk-footer__links li {
  margin: 0;
}

.mk-footer__links a {
  font-size: 0.92rem;
  color: var(--mk-text-muted-dark);
}

.mk-footer__links a:hover {
  color: var(--mk-copper);
}

.mk-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block-start: 2rem;
  font-size: 0.85rem;
  color: var(--mk-text-muted-dark);
}

/* Breadcrumbs */
.mk-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--mk-text-muted-dark);
  margin-block-end: 1.25rem;
  list-style: none;
  padding: 0;
}

.mk-breadcrumbs li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.mk-breadcrumbs a:hover {
  color: var(--mk-copper);
}

/* Scroll Reveal Animations */
.mk-reveal {
  opacity: 0;
  translate: 0 24px;
  transition:
    opacity var(--mk-duration) var(--mk-ease-out),
    translate var(--mk-duration) var(--mk-ease-out);
}

.mk-reveal.is-visible {
  opacity: 1;
  translate: 0 0;
}

/* Cookie Consent Bar (KVKK Compliant) */
.mk-cookie-banner {
  position: fixed;
  inset-block-end: 1.25rem;
  inset-inline-start: 1.25rem;
  z-index: 995;
  max-inline-size: 460px;
  background-color: var(--mk-anthracite);
  color: var(--mk-text-light);
  border: 1px solid var(--mk-border-dark);
  border-radius: var(--mk-radius-md);
  padding: 1.5rem;
  box-shadow: var(--mk-shadow-lg);
}

.mk-cookie-banner[hidden] {
  display: none !important;
}

/* ==========================================================================
   14. RESPONSIVE & PREFERS-REDUCED-MOTION
   ========================================================================== */
@media (max-width: 1024px) {
  .mk-hero__grid,
  .mk-split {
    grid-template-columns: 1fr;
  }

  .mk-process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mk-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mk-header__desktop-only {
    display: none !important;
  }

  .mk-header__mobile-call,
  .mk-menu-toggle {
    display: inline-flex;
  }

  .mk-nav {
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
    background-color: rgba(11, 14, 17, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-block-end: 1px solid var(--mk-border-dark);
    padding: 1.5rem;
    max-block-size: calc(100dvh - 4.75rem);
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
    opacity: 0;
    visibility: hidden;
    translate: 0 -10px;
    transition: opacity 0.25s ease, translate 0.25s ease, visibility 0.25s;
  }

  .mk-nav.is-open {
    opacity: 1;
    visibility: visible;
    translate: 0 0;
  }

  .mk-nav__list {
    flex-direction: column;
    align-items: stretch;
    inline-size: 100%;
    gap: 0.25rem;
  }

  .mk-nav__list > li > a {
    font-size: 1.05rem;
    font-weight: 600;
    padding: 0.75rem 0.9rem;
    justify-content: space-between;
  }

  .mk-nav__list .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    translate: none;
    box-shadow: none;
    border: none;
    border-inline-start: 2px solid rgba(217, 119, 50, 0.35);
    border-radius: 0;
    margin-inline-start: 0.9rem;
    padding: 0.25rem 0 0.5rem 0.85rem;
    background: transparent;
  }

  .mk-nav__mobile-actions {
    display: grid;
    gap: 0.75rem;
    padding-block-start: 1.25rem;
    border-block-start: 1px solid var(--mk-border-dark);
  }

  .mk-nav__mobile-actions .mk-btn {
    inline-size: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .mk-hero {
    min-block-size: auto;
    padding-block: 2.5rem 3.5rem;
  }

  .mk-process-grid,
  .mk-form-grid,
  .mk-feature-list,
  .mk-hero__badges,
  .mk-footer__grid {
    grid-template-columns: 1fr;
  }

  .mk-btn-group .mk-btn {
    inline-size: 100%;
  }

  .mk-floating-whatsapp {
    inline-size: 3.5rem;
    block-size: 3.5rem;
    padding: 0;
    border-radius: 50%;
    justify-content: center;
  }

  .mk-floating-whatsapp svg {
    inline-size: 1.65rem;
    block-size: 1.65rem;
    flex-shrink: 0;
  }

  .mk-floating-whatsapp span {
    display: none;
  }
}

@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;
    scroll-behavior: auto !important;
  }

  .mk-reveal {
    opacity: 1 !important;
    translate: none !important;
  }
}