/* ============================================================
   DENTWIDE — Components: Header, Buttons, Cards, Form, Footer
   ============================================================ */

/* ── HEADER ──────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: var(--z-header);
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
  background: transparent;
}

.header.scrolled {
  background: rgba(26,39,68,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.25);
}

.header.header--solid {
  background: var(--color-navy);
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header__logo img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

.header__logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.header__logo-sub {
  font-size: var(--font-size-xs);
  color: var(--color-gold);
  display: block;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.05em;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255,255,255,.85);
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
  letter-spacing: 0.01em;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-gold);
  background: rgba(201,169,110,.1);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Language toggle */
.lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-full);
  background: transparent;
  color: rgba(255,255,255,.85);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lang-btn:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger.active .hamburger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active .hamburger__line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-navy-dark);
  z-index: calc(var(--z-header) - 1);
  padding-top: var(--header-height);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.mobile-nav.open { display: flex; }

.mobile-nav__link {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: rgba(255,255,255,.85);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-md);
  transition: color var(--transition-base);
}

.mobile-nav__link:hover { color: var(--color-gold); }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-gold);
  color: var(--color-navy-dark);
  border-color: var(--color-gold);
}

.btn--primary:hover {
  background: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.4);
}

.btn--outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn--outline-dark:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--font-size-base);
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ── CARDS ───────────────────────────────────────────────── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card__body { padding: var(--space-8); }

.card__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.card__icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
}

.card__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-loose);
}

/* Service card */
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.service-card:hover::before { transform: scaleX(1); }

/* Stats */
.stat-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.stat-number {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.7);
  letter-spacing: 0.04em;
}

/* ── FORM ────────────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-label span { color: var(--color-error); }

.form-control {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(26,39,68,.08);
}

.form-control.error { border-color: var(--color-error); }

.form-control::placeholder { color: var(--color-text-light); }

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  display: none;
}

.form-error.show { display: block; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

/* Checkbox */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  cursor: pointer;
}

.form-check input[type="checkbox"] { margin-top: 2px; accent-color: var(--color-navy); }

/* Alert */
.alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  display: none;
  margin-bottom: var(--space-5);
}

.alert.show { display: flex; align-items: center; gap: var(--space-3); }
.alert--success { background: rgba(46,204,113,.1); color: #1a7a40; border: 1px solid rgba(46,204,113,.3); }
.alert--error   { background: rgba(231,76,60,.1);  color: #a02020; border: 1px solid rgba(231,76,60,.3); }

/* ── INFO CARD (contact page) ────────────────────────────── */
.info-card {
  background: var(--color-off-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
}

.info-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
}

.info-item:last-child { border-bottom: none; }

.info-icon {
  width: 44px;
  height: 44px;
  background: var(--color-navy);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
}

.info-content h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-1);
}

.info-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-normal);
}

/* ── BADGE ───────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge--gold { background: rgba(201,169,110,.15); color: var(--color-gold-dark); border: 1px solid rgba(201,169,110,.3); }
.badge--navy { background: rgba(26,39,68,.1); color: var(--color-navy); border: 1px solid rgba(26,39,68,.2); }

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: var(--color-navy-dark);
  color: rgba(255,255,255,.75);
  padding-top: var(--space-20);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer__brand img {
  height: 36px;
  filter: brightness(0) invert(1);
  margin-bottom: var(--space-4);
}

.footer__brand-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.footer__brand-sub {
  font-size: var(--font-size-xs);
  color: var(--color-gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer__desc {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-loose);
  margin-block: var(--space-5);
  max-width: 280px;
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-5);
}

.footer__links { display: flex; flex-direction: column; gap: var(--space-3); }

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.6);
  transition: color var(--transition-base);
}

.footer__link:hover { color: var(--color-gold); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.6);
  margin-bottom: var(--space-3);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
  margin-top: 2px;
  flex-shrink: 0;
}

.footer__bottom {
  padding-block: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,.4);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-5);
}

.footer__bottom-links a {
  color: rgba(255,255,255,.4);
  transition: color var(--transition-base);
}

.footer__bottom-links a:hover { color: var(--color-gold); }

/* ── MAP ─────────────────────────────────────────────────── */
.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.map-wrapper iframe {
  display: block;
  width: 100%;
  height: 380px;
}

/* ── GALLERY ─────────────────────────────────────────────── */
.gallery-filters {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-10);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: var(--color-light-gray);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img { transform: scale(1.06); }

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,39,68,.85) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
}

.gallery-item:hover .gallery-item__overlay { opacity: 1; }

.gallery-item__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.92);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.lightbox.open { display: flex; }

.lightbox__img {
  max-width: min(90vw, 1000px);
  max-height: 80vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.lightbox__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,.1);
  color: var(--color-white);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-base);
}

.lightbox__close:hover { background: rgba(255,255,255,.25); }

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,.1);
  color: var(--color-white);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-base);
}

.lightbox__nav:hover { background: rgba(201,169,110,.5); }
.lightbox__prev { left: var(--space-6); }
.lightbox__next { right: var(--space-6); }

.lightbox__caption {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.8);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* ── CTA SECTION ─────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 100%);
  padding: var(--space-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(201,169,110,.12) 0%, transparent 70%);
}

.cta-section .container { position: relative; }

/* ── EQUIPMENT GRID (about) ──────────────────────────────── */
.equipment-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.equipment-item:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}

.equipment-icon {
  width: 48px;
  height: 48px;
  background: var(--color-navy);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.equipment-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
}

/* ── CERT BADGES ─────────────────────────────────────────── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}

.cert-item {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.cert-item__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
}

.cert-item__name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.cert-item__year {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ── TIMELINE (about) ────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), var(--color-navy));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) - 5px);
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-gold);
}

.timeline-year {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-gold);
  margin-bottom: var(--space-1);
}

.timeline-text {
  font-size: var(--font-size-base);
  color: var(--color-text);
}

/* ── SCROLL TO TOP ───────────────────────────────────────── */
.scroll-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 44px;
  height: 44px;
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(16px);
  transition: all var(--transition-base);
  z-index: var(--z-raised);
  border: none;
}

.scroll-top.show {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-gold);
  transform: translateY(-2px);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}