/* ==========================================================================
   VISAMAT — COMPONENTS
   Header, Mega-Menu, Buttons, Modals, Drawers
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition:
    background-color var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    backdrop-filter var(--transition-normal);
  border-bottom: 1px solid transparent;
  background-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-header--scrolled,
.site-header--solid {
  background-color: rgba(245, 241, 234, 0.55);
  border-bottom-color: rgba(23, 21, 18, 0.05);
  backdrop-filter: blur(8px) saturate(1.05);
  -webkit-backdrop-filter: blur(8px) saturate(1.05);
  box-shadow: 0 1px 0 rgba(23, 21, 18, 0.03);
}

.site-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 1.5rem;
}

.header-brand-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 2.8vw, 2.75rem);
  min-width: 0;
}

/* Brand Logo */
.brand-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 1002;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

/* Navigation Links */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 2rem);
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
  padding: 0.5rem 0;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--accent-terracotta);
  transition: width var(--transition-normal);
}

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

/* Header Utilities */
.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.2vw, 1.35rem);
}

/* Language Switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  gap: 0.35rem;
  color: var(--text-muted);
}

.lang-btn {
  padding: 0.2rem 0.25rem;
  transition: color var(--transition-fast);
  color: inherit;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
}

.lang-btn.active {
  color: var(--text-primary);
  font-weight: 700;
}

.lang-divider {
  color: var(--border-medium);
}

/* --------------------------------------------------------------------------
   Mega Menu for SERVEIS
   -------------------------------------------------------------------------- */
.mega-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-dropdown);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  z-index: 999;
}

.mega-menu.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mega-menu__container {
  display: grid;
  grid-template-columns: 320px 1fr 340px;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  padding-bottom: var(--space-lg);
}

.mega-menu__col-intro {
  border-right: 1px solid var(--border-subtle);
  padding-right: var(--space-md);
}

.mega-menu__list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.mega-menu__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem;
  border-left: 2px solid transparent;
  border-radius: var(--radius-xs);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.mega-menu__item:hover,
.mega-menu__item.is-previewed {
  background-color: var(--bg-secondary);
  border-left-color: var(--accent-terracotta);
  transform: translateX(4px);
}

.mega-menu__item-name {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
}

.mega-menu__item-num {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.mega-menu__col-preview {
  position: relative;
  overflow: hidden;
  height: 250px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-xs);
}

.mega-menu__preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-normal);
}

.mega-menu__preview-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1rem;
  background: linear-gradient(to top, rgba(23, 21, 18, 0.85), transparent);
  color: #fff;
  font-size: 0.825rem;
}

/* --------------------------------------------------------------------------
   Buttons & CTA System (Dark Accent & Minimalist)
   -------------------------------------------------------------------------- */
.btn-arch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background-color: var(--bg-contrast); /* Deep charcoal accent */
  color: #FAF7F2;
  border: 1px solid var(--bg-contrast);
  border-radius: var(--radius-xs);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-arch:hover {
  background-color: #26221D;
  border-color: #26221D;
  transform: translateY(-1px);
}

.btn-arch--outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-arch--outline:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

.btn-arch--inverse {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--bg-primary);
}

.btn-arch--inverse:hover {
  background-color: #ECE5DA;
  border-color: #ECE5DA;
}

.btn-arch--inverse-outline {
  background-color: transparent;
  color: var(--text-inverse);
  border-color: var(--border-inverse-medium);
}

.btn-arch--inverse-outline:hover {
  background-color: var(--text-inverse);
  color: var(--bg-contrast);
  border-color: var(--text-inverse);
}

.btn-arch__arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
}

.btn-arch:hover .btn-arch__arrow {
  transform: translateX(4px);
}

.btn-link-arch {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
  padding-bottom: 2px;
  border-bottom: 1.5px solid var(--accent-terracotta);
  transition: gap var(--transition-fast), opacity var(--transition-fast);
}

.btn-link-arch:hover {
  gap: 0.75rem;
  opacity: 0.85;
}

.btn-link-arch--inverse {
  color: var(--text-inverse);
  border-bottom-color: var(--accent-sand);
}

/* --------------------------------------------------------------------------
   Interactive Modals & Drawers
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(23, 21, 18, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-sheet {
  background-color: var(--bg-primary);
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-drawer);
  position: relative;
  border-radius: var(--radius-sm);
  transform: translateY(16px) scale(0.99);
  transition: transform var(--transition-normal);
}

.modal-backdrop.is-open .modal-sheet {
  transform: translateY(0) scale(1);
}

.modal-sheet__header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background-color: var(--bg-primary);
  z-index: 10;
}

.modal-sheet__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1.25rem;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.modal-sheet__close:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  transform: rotate(90deg);
}

.modal-sheet__body {
  padding: var(--space-lg);
}

/* Consultation Step Wizard */
.wizard-progress {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.wizard-progress__bar {
  flex: 1;
  height: 2.5px;
  background-color: var(--border-medium);
  border-radius: 2px;
  overflow: hidden;
}

.wizard-progress__bar.is-completed {
  background-color: var(--accent-terracotta);
}

.wizard-step {
  display: none;
}

.wizard-step.is-active {
  display: block;
  animation: fadeInStep 0.4s var(--ease-architectural);
}

@keyframes fadeInStep {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.85rem;
  margin-top: 1.15rem;
  margin-bottom: 1.75rem;
}

.choice-card {
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  padding: 1.15rem;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-xs);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.choice-card:hover {
  border-color: var(--accent-clay);
  transform: translateY(-2px);
}

.choice-card.is-selected {
  border-color: var(--accent-terracotta);
  background-color: var(--bg-linen);
  box-shadow: 0 0 0 1px var(--accent-terracotta);
}

.choice-card__title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.choice-card__desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.8rem 0.95rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  outline: none;
  font-size: 0.925rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent-terracotta);
  box-shadow: 0 0 0 1px var(--accent-terracotta);
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   Project Quick-View Drawer
   -------------------------------------------------------------------------- */
.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(23, 21, 18, 0.55);
  backdrop-filter: blur(6px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.drawer-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.drawer-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 720px;
  height: 100vh;
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-drawer);
  z-index: 2001;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.drawer-backdrop.is-open .drawer-panel {
  transform: translateX(0);
}

.drawer-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background-color: var(--bg-primary);
  z-index: 10;
}

.drawer-content {
  padding: var(--space-lg);
}

/* Toast Notification — hidden until .is-visible */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  max-width: min(22rem, calc(100vw - 2rem));
  padding: 0.9rem 1.4rem;
  background-color: var(--bg-contrast);
  color: var(--text-inverse);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  border-left: 3px solid var(--accent-terracotta);
  border-radius: var(--radius-xs);
  box-shadow: 0 10px 30px rgba(23, 21, 18, 0.2);
  transform: translate3d(0, 1.25rem, 0);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--transition-normal),
    transform var(--transition-normal),
    visibility var(--transition-normal);
  z-index: 2500;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.toast-notice.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(0, 0, 0);
}

.toast-notice[hidden] {
  display: none !important;
}

/* Burger Button */
.burger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 26px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1002;
}

.burger-line {
  width: 100%;
  height: 1.5px;
  background-color: var(--text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.burger-btn.is-active .burger-line:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.burger-btn.is-active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-btn.is-active .burger-line:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}