/* =====================================================
   İzel Altunbaş Pilates Stüdyo – Ana Stil Dosyası
   ===================================================== */

/* ---------- CSS VARIABLES ---------- */
:root {
  --clr-bg:        #faf9f7;
  --clr-surface:   #ffffff;
  --clr-surface2:  #f5f2ee;
  --clr-border:    #e8e3dc;
  --clr-text:      #2c2820;
  --clr-text-muted:#7a6f62;
  --clr-accent:    #b8906a;
  --clr-accent-dk: #9c7454;
  --clr-accent-lt: #e8d5c0;
  --clr-accent-bg: #fdf6ef;
  --clr-green:     #25d366;
  --clr-white:     #ffffff;

  --ff-display: 'Cormorant Garamond', Georgia, serif;
  --ff-body:    'DM Sans', system-ui, sans-serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.375rem;
  --fs-2xl:  1.75rem;
  --fs-3xl:  2.25rem;
  --fs-4xl:  3rem;
  --fs-5xl:  4rem;
  --fs-6xl:  5rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --shadow-sm: 0 1px 3px rgba(44,40,32,.06), 0 1px 2px rgba(44,40,32,.04);
  --shadow-md: 0 4px 16px rgba(44,40,32,.10), 0 2px 6px rgba(44,40,32,.06);
  --shadow-lg: 0 12px 40px rgba(44,40,32,.14), 0 4px 12px rgba(44,40,32,.08);
  --shadow-xl: 0 24px 64px rgba(44,40,32,.16);

  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h:  76px;
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ff-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
address { font-style: normal; }
figure { margin: 0; }

/* ---------- UTILITIES ---------- */
.container {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
}

.section { padding-block: 100px; }
.section--alt { background: var(--clr-surface2); }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-label {
  display: inline-block;
  font-family: var(--ff-body);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 12px;
  padding: 6px 14px;
  background: var(--clr-accent-bg);
  border-radius: 100px;
  border: 1px solid var(--clr-accent-lt);
}
.section-title {
  font-family: var(--ff-display);
  font-size: clamp(var(--fs-2xl), 3.5vw, var(--fs-4xl));
  font-weight: 400;
  line-height: 1.2;
  color: var(--clr-text);
  margin-bottom: 16px;
}
.section-title em { font-style: italic; color: var(--clr-accent); }
.section-desc {
  font-size: var(--fs-lg);
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--ff-body);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
}
.btn--sm { padding: 10px 18px; font-size: var(--fs-xs); }
.btn--full { width: 100%; justify-content: center; }

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-white);
  box-shadow: 0 2px 12px rgba(184,144,106,.35);
}
.btn--primary:hover {
  background: var(--clr-accent-dk);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(184,144,106,.45);
}

.btn--outline {
  background: transparent;
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
}
.btn--outline:hover {
  background: var(--clr-accent-bg);
  transform: translateY(-1px);
}

.btn--ghost {
  background: var(--clr-surface2);
  color: var(--clr-text-muted);
  border: 1.5px solid var(--clr-border);
}
.btn--ghost:hover {
  background: var(--clr-border);
  color: var(--clr-text);
}

.btn--whatsapp {
  background: #25d366;
  color: var(--clr-white);
  font-weight: 500;
  box-shadow: 0 2px 12px rgba(37,211,102,.3);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm);
  width: 100%;
  justify-content: center;
  margin-bottom: 28px;
}
.btn--whatsapp:hover {
  background: #1da851;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,211,102,.4);
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(250,249,247,.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header__logo-img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}
.header__logo-text {
  font-family: var(--ff-display);
  font-size: var(--fs-lg);
  font-weight: 500;
  line-height: 1.2;
  color: var(--clr-text);
}
.header__logo-text small {
  display: block;
  font-family: var(--ff-body);
  font-size: var(--fs-xs);
  font-weight: 400;
  color: var(--clr-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.header__nav-link {
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--clr-text-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.header__nav-link:hover,
.header__nav-link.active {
  color: var(--clr-text);
  background: var(--clr-accent-bg);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  padding: 8px;
}
.header__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}
.header__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.header__burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
}
.hero__bg {
  position: absolute;
  inset: 0;
}
.hero__bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hero__bg-img.active { opacity: 1; }
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    rgba(44,40,32,.72) 0%,
    rgba(44,40,32,.42) 60%,
    rgba(44,40,32,.18) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
  padding-block: 80px;
  max-width: 680px;
}
.hero__label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.75);
  margin-bottom: 20px;
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 100px;
  backdrop-filter: blur(8px);
}
.hero__title {
  font-family: var(--ff-display);
  font-size: clamp(var(--fs-4xl), 7vw, var(--fs-6xl));
  font-weight: 300;
  line-height: 1.08;
  color: var(--clr-white);
  margin-bottom: 22px;
  letter-spacing: -0.01em;
}
.hero__title em {
  font-style: italic;
  color: var(--clr-accent-lt);
}
.hero__subtitle {
  font-size: clamp(var(--fs-base), 1.5vw, var(--fs-lg));
  color: rgba(255,255,255,.82);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 52px;
}
.hero__cta .btn--outline {
  border-color: rgba(255,255,255,.5);
  color: var(--clr-white);
}
.hero__cta .btn--outline:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.8);
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.hero__stat { text-align: center; }
.hero__stat strong {
  display: block;
  font-family: var(--ff-display);
  font-size: var(--fs-2xl);
  font-weight: 500;
  color: var(--clr-white);
  line-height: 1;
  margin-bottom: 4px;
}
.hero__stat span {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.hero__stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,.25);
}

.hero__dots {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}
.hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
  transition: all var(--transition);
  border: 1px solid rgba(255,255,255,.5);
}
.hero__dot.active {
  background: var(--clr-white);
  transform: scale(1.25);
}

/* ============================================
   ABOUT
   ============================================ */
.about { background: var(--clr-surface); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__images {
  position: relative;
}
.about__img-main {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-xl);
}
.about__img-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.about__img-main:hover img { transform: scale(1.03); }
.about__img-secondary {
  position: absolute;
  bottom: -32px;
  right: -32px;
  width: 52%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 6px solid var(--clr-bg);
  box-shadow: var(--shadow-lg);
}
.about__img-secondary img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about__badge {
  position: absolute;
  top: 28px;
  left: -24px;
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--clr-border);
}
.about__badge-number {
  display: block;
  font-family: var(--ff-display);
  font-size: var(--fs-3xl);
  font-weight: 500;
  color: var(--clr-accent);
  line-height: 1;
}
.about__badge-text {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.about__content { padding-bottom: 48px; }
.about__content .section-label { margin-bottom: 16px; }
.about__content .section-title { text-align: left; margin-bottom: 24px; }
.about__content p { color: var(--clr-text-muted); margin-bottom: 16px; line-height: 1.75; }
.about__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 28px 0 36px;
}
.about__feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm);
  color: var(--clr-text);
}
.about__feature svg { color: var(--clr-accent); flex-shrink: 0; }

/* ============================================
   SERVICES
   ============================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-lt));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-accent-lt);
}
.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  width: 60px;
  height: 60px;
  background: var(--clr-accent-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--clr-accent);
  border: 1px solid var(--clr-accent-lt);
  transition: background var(--transition);
}
.service-card:hover .service-card__icon {
  background: var(--clr-accent);
  color: var(--clr-white);
  border-color: var(--clr-accent);
}

.service-card__title {
  font-family: var(--ff-display);
  font-size: var(--fs-xl);
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--clr-text);
}
.service-card__desc {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-accent);
  transition: gap var(--transition);
}
.service-card__link:hover { gap: 10px; }

/* ============================================
   CERTIFICATES
   ============================================ */
.certs { background: var(--clr-surface); }
.certs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.cert-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition);
}
.cert-card:hover {
  border-color: var(--clr-accent-lt);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.cert-card__icon {
  width: 52px;
  height: 52px;
  background: var(--clr-accent-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  border: 1px solid var(--clr-accent-lt);
  flex-shrink: 0;
}
.cert-card__body { flex: 1; }
.cert-card__title {
  font-family: var(--ff-display);
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--clr-text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.cert-card__desc {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
}
.cert-card__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ============================================
   MISSION & VISION
   ============================================ */
.mv .container { position: relative; }
.mv__grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: start;
}
.mv__divider {
  width: 1px;
  background: var(--clr-border);
  margin: 0 60px;
  align-self: stretch;
}
.mv__card {
  padding: 48px 0;
}
.mv__card .section-label { margin-bottom: 12px; }
.mv__card-icon {
  width: 64px;
  height: 64px;
  background: var(--clr-accent-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  margin-bottom: 24px;
  border: 2px solid var(--clr-accent-lt);
}
.mv__title {
  font-family: var(--ff-display);
  font-size: clamp(var(--fs-2xl), 3vw, var(--fs-3xl));
  font-weight: 400;
  color: var(--clr-text);
  margin-bottom: 20px;
  line-height: 1.2;
}
.mv__card p {
  font-size: var(--fs-base);
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
}
.mv__card p:last-child { margin-bottom: 0; }

/* ============================================
   GALLERY
   ============================================ */
.gallery { background: var(--clr-surface); }
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gallery__item {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--clr-surface2);
}
.gallery__item:first-child {
  grid-row: span 2;
  aspect-ratio: unset;
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery__item:hover img { transform: scale(1.06); }
.gallery__caption {
  position: absolute;
  inset: 0;
  background: rgba(44,40,32,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--clr-white);
  font-size: var(--fs-sm);
  font-weight: 500;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery__item:hover .gallery__caption { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(20,17,12,.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(8px);
  animation: fadeIn 0.2s ease;
}
.lightbox[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.lightbox__img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: scaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes scaleIn { from { transform: scale(0.88); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.lightbox__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-white);
  transition: background var(--transition);
}
.lightbox__close:hover { background: rgba(255,255,255,.25); }

/* ============================================
   CONTACT
   ============================================ */
.contact { background: var(--clr-bg); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.contact__detail-icon {
  width: 44px;
  height: 44px;
  background: var(--clr-accent-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
}
.contact__detail strong {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--clr-text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.contact__detail p,
.contact__detail a {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
}
.contact__link {
  transition: color var(--transition);
}
.contact__link:hover { color: var(--clr-accent); }

.contact__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
}
.contact__map iframe { display: block; }

/* Form */
.contact__form {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  box-shadow: var(--shadow-md);
}
.contact__form-title {
  font-family: var(--ff-display);
  font-size: var(--fs-2xl);
  font-weight: 400;
  margin-bottom: 28px;
  color: var(--clr-text);
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 8px;
}
.form-group label span { color: var(--clr-accent); }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  color: var(--clr-text);
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-lt);
}
.form-note {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  text-align: center;
  margin-top: 12px;
}
.form-success {
  margin-top: 16px;
  padding: 14px 18px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  color: #166534;
  text-align: center;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--clr-text);
  color: rgba(255,255,255,.72);
  padding-block: 64px 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer__logo-link { display: inline-block; margin-bottom: 16px; }
.footer__logo {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  filter: brightness(1.1);
}
.footer__tagline {
  font-size: var(--fs-sm);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 280px;
}
.footer__social {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.55);
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.footer__social:hover {
  color: var(--clr-white);
  border-color: rgba(255,255,255,.35);
  background: rgba(255,255,255,.06);
}
.footer__nav-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-white);
  margin-bottom: 20px;
}
.footer__nav-list li { margin-bottom: 10px; }
.footer__nav-list a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.55);
  transition: color var(--transition);
}
.footer__nav-list a:hover { color: var(--clr-accent-lt); }
.footer__contact address p {
  font-size: var(--fs-sm);
  line-height: 1.7;
  margin-bottom: 10px;
}
.footer__contact address a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.55);
  transition: color var(--transition);
}
.footer__contact address a:hover { color: var(--clr-white); }
.footer__bottom {
  padding-block: 20px;
  text-align: center;
}
.footer__bottom p { font-size: var(--fs-xs); color: rgba(255,255,255,.35); }

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 900;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
}
.fab--whatsapp {
  background: var(--clr-green);
  color: var(--clr-white);
}
.fab--whatsapp:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,.5);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__images { max-width: 560px; margin-inline: auto; }
  .about__content { padding-bottom: 0; }
  .about__content .section-title { text-align: center; }
  .about__content .section-label { display: block; text-align: center; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .mv__grid { grid-template-columns: 1fr; }
  .mv__divider { display: none; }
  .mv__card { padding: 36px 0; border-bottom: 1px solid var(--clr-border); }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
  .gallery__item:first-child { grid-row: auto; }
  .contact__grid { grid-template-columns: 1fr; gap: 48px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

/* Mobile nav */
@media (max-width: 900px) {
  .header__nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    padding: 20px 24px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
    box-shadow: var(--shadow-lg);
  }
  .header__nav.open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
  .header__nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .header__nav-link { padding: 12px 16px; border-radius: var(--radius-sm); font-size: var(--fs-base); }
  .header__burger { display: flex; }
}

/* Mobile */
@media (max-width: 640px) {
  :root { --header-h: 68px; }
  .section { padding-block: 64px; }
  .hero__title { font-size: clamp(2.4rem, 9vw, 3.2rem); }
  .hero__cta { flex-direction: column; }
  .hero__stats { gap: 16px; }
  .about__features { grid-template-columns: 1fr; }
  .about__img-secondary { display: none; }
  .about__badge { left: 12px; top: 12px; }
  .services__grid { grid-template-columns: 1fr; }
  .certs__grid { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: 1fr; }
  .gallery__item:first-child { aspect-ratio: 3/2; }
  .contact__form { padding: 28px 20px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .mv__grid { gap: 0; }
}