/* ============================================
   MERVA MERMER — Premium Kurumsal Stil Dosyası
   Renkler: Beyaz · Siyah · Antrasit · Altın
   ============================================ */

:root {
  --white: #fafafa;
  --white-pure: #ffffff;
  --black: #0a0a0a;
  --anthracite: #1c1c1e;
  --anthracite-mid: #2a2a2d;
  --anthracite-soft: #3a3a3e;
  --gold: #c4a35a;
  --gold-light: #d4b76a;
  --gold-dark: #a88b3f;
  --marble-vein: #e8e4df;
  --text: #2c2c2e;
  --text-muted: #6b6b70;
  --border: rgba(196, 163, 90, 0.22);
  --shadow: 0 20px 50px rgba(10, 10, 10, 0.08);
  --radius: 2px;
  --header-h: 80px;
  --font-display: "Cinzel", Georgia, serif;
  --font-body: "Jost", sans-serif;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --container: min(1180px, calc(100% - 3rem));
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--white);
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(196, 163, 90, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(28, 28, 30, 0.04) 0%, transparent 45%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

ul {
  list-style: none;
}

button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.section {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.section--alt {
  background:
    linear-gradient(180deg, rgba(232, 228, 223, 0.45) 0%, rgba(250, 250, 250, 0.9) 100%);
  position: relative;
}

.section--alt::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
}

.section--dark {
  background: var(--anthracite);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.section--dark::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 40%, rgba(196, 163, 90, 0.08) 100%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c4a35a' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.85rem;
}

.section__eyebrow--light {
  color: var(--gold-light);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.25;
  color: var(--black);
  letter-spacing: 0.02em;
}

.section__title--light {
  color: var(--white);
}

.section__lead {
  margin-top: 1rem;
  color: var(--text-muted);
  font-weight: 300;
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.85rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--gold {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
}

.btn--gold:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 163, 90, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

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

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

.btn--full {
  width: 100%;
}

/* ---------- Logo ---------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--black);
}

.logo__mark {
  width: 42px;
  height: 42px;
  color: var(--gold);
  flex-shrink: 0;
}

.logo__mark svg {
  width: 100%;
  height: 100%;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.logo__sub {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.logo--footer,
.logo--light {
  color: var(--white);
}

.logo--footer .logo__sub,
.logo--light .logo__sub {
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

/* Ana sayfa hero üzerinde açık logo */
body:not(.page-inner) .header:not(.is-scrolled) .logo {
  color: var(--white);
}

body:not(.page-inner) .header:not(.is-scrolled) .logo__sub {
  color: rgba(255, 255, 255, 0.55);
}

.header.is-scrolled {
  background: rgba(250, 250, 250, 0.94);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.header.is-scrolled .nav__link {
  color: var(--text);
}

.header.is-scrolled .nav__link:hover,
.header.is-scrolled .nav__link.active {
  color: var(--gold-dark);
}

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

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

.nav__link {
  display: block;
  padding: 0.5rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  transition: color var(--transition);
}

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

.header__cta {
  padding: 0.65rem 1.25rem;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.page-inner .header {
  background: rgba(250, 250, 250, 0.96);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.page-inner .nav__link {
  color: var(--text);
}

.page-inner .nav__link:hover,
.page-inner .nav__link.active {
  color: var(--gold-dark);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--gold);
  margin-left: auto;
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ---------- Hero Slider ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 620px;
  max-height: 960px;
  overflow: hidden;
}

.hero__slider {
  height: 100%;
  position: relative;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-color: var(--anthracite);
  background-image: var(--hero-img);
  background-size: cover;
  background-position: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease, visibility 1s ease;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(5rem, 12vh, 8rem);
}

.hero__slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.hero__slide.is-active .hero__content {
  animation: heroContentIn 0.9s ease forwards;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 10, 10, 0.35) 0%, rgba(10, 10, 10, 0.55) 45%, rgba(10, 10, 10, 0.78) 100%),
    linear-gradient(90deg, rgba(10, 10, 10, 0.45) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  opacity: 0;
}

@keyframes heroContentIn {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  color: var(--white);
  letter-spacing: 0.04em;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.hero__desc {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 300;
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  background: rgba(10, 10, 10, 0.25);
  backdrop-filter: blur(4px);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.hero__nav:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--black);
}

.hero__nav--prev {
  left: clamp(0.75rem, 3vw, 2rem);
}

.hero__nav--next {
  right: clamp(0.75rem, 3vw, 2rem);
}

.hero__dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  gap: 0.6rem;
}

.hero__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: transparent;
  padding: 0;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.hero__dot.is-active,
.hero__dot:hover {
  background: var(--gold);
  border-color: var(--gold);
  transform: scale(1.15);
}

/* ---------- About ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  margin-bottom: 4rem;
}

.about__media {
  position: relative;
}

.about__image {
  aspect-ratio: 4 / 5;
  background-size: cover;
  background-position: center;
  background-color: var(--marble-vein);
  position: relative;
  z-index: 1;
}

.about__accent {
  position: absolute;
  width: 55%;
  height: 55%;
  border: 1px solid var(--gold);
  bottom: -1.25rem;
  right: -1.25rem;
  z-index: 0;
}

.about__story {
  margin: 1.25rem 0 2rem;
  color: var(--text-muted);
  font-weight: 300;
}

.about__values {
  display: grid;
  gap: 1.5rem;
}

.about__value h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold-dark);
  margin-bottom: 0.35rem;
}

.about__value p {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 300;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 3rem;
}

.stat {
  text-align: center;
  padding: 1.5rem 1rem;
  position: relative;
}

.stat::after {
  content: "";
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--border);
}

.stat:last-child::after {
  display: none;
}

.stat__number,
.stat__suffix {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 500;
  color: var(--black);
  letter-spacing: 0.02em;
}

.stat__suffix {
  color: var(--gold);
}

.stat__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- Products ---------- */
.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.product-card {
  background: var(--white-pure);
  border: 1px solid transparent;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  border-color: var(--border);
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.product-card__link {
  display: block;
  height: 100%;
}

.product-card__image {
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  background-color: var(--marble-vein);
  transition: transform 0.6s ease;
  border-bottom: 1px solid rgba(28, 28, 30, 0.06);
}

.product-card:hover .product-card__image {
  transform: scale(1.03);
}

.product-card__body {
  padding: 1.5rem 1.35rem 1.75rem;
  overflow: hidden;
}

.product-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  color: var(--black);
}

.product-card__desc {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 1.15rem;
  line-height: 1.6;
}

.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
}

.product-card__cta i {
  transition: transform var(--transition);
  font-size: 0.7rem;
}

.product-card:hover .product-card__cta i {
  transform: translateX(4px);
}

/* ---------- Services ---------- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  padding: 2.25rem 1.75rem;
  border: 1px solid rgba(28, 28, 30, 0.08);
  background: var(--white-pure);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--gold);
  font-size: 1.2rem;
  margin-bottom: 1.35rem;
  transition: background var(--transition), color var(--transition);
}

.service-card:hover .service-card__icon {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin-bottom: 0.65rem;
  color: var(--black);
}

.service-card__desc {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 1.35rem;
}

.service-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
}

.service-card__cta i {
  font-size: 0.7rem;
  transition: transform var(--transition);
}

.service-card:hover .service-card__cta i {
  transform: translateX(4px);
}

/* ---------- Testimonials ---------- */
.testimonials {
  position: relative;
}

.testimonials .section__header,
.testimonials__slider {
  position: relative;
  z-index: 1;
}

.testimonials__slider {
  max-width: 720px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonials__track {
  display: flex;
  transition: transform 0.6s ease;
}

.testimonial {
  flex: 0 0 100%;
  padding: 0 1rem;
  text-align: center;
}

.testimonial__stars {
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.testimonial__quote {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.testimonial__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.testimonial__author img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--gold);
}

.testimonial__name {
  display: block;
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--white);
}

.testimonial__company {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 300;
}

.testimonials__dots {
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 2.5rem;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid rgba(196, 163, 90, 0.5);
  background: transparent;
  padding: 0;
  transition: background var(--transition), border-color var(--transition);
}

.testimonial-dot.is-active {
  background: var(--gold);
  border-color: var(--gold);
}

/* ---------- Blog ---------- */
.blog__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.blog-card {
  background: var(--white-pure);
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.blog-card__link {
  display: block;
  height: 100%;
}

.blog-card__image {
  aspect-ratio: 16 / 10;
  background-size: cover;
  background-position: center;
  background-color: var(--marble-vein);
}

.blog-card__body {
  padding: 1.5rem 1.35rem 1.75rem;
  border: 1px solid rgba(28, 28, 30, 0.06);
  border-top: none;
}

.blog-card__date {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 0.65rem;
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--black);
  margin-bottom: 0.65rem;
}

.blog-card__excerpt {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 1.15rem;
}

.blog-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
}

.blog-card__cta i {
  font-size: 0.7rem;
  transition: transform var(--transition);
}

.blog-card:hover .blog-card__cta i {
  transform: translateX(4px);
}

/* ---------- Contact ---------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact__item {
  display: flex;
  gap: 1.15rem;
  align-items: flex-start;
}

.contact__item > i {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--gold);
  font-size: 0.95rem;
}

.contact__item h3 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
  color: var(--black);
}

.contact__item a,
.contact__item p {
  font-weight: 300;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact__item a:hover {
  color: var(--gold-dark);
}

.contact__map {
  margin-top: 0.5rem;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--marble-vein);
}

.contact__map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(30%) contrast(1.05);
}

.contact__form {
  background: var(--white-pure);
  padding: clamp(1.75rem, 4vw, 2.5rem);
  border: 1px solid rgba(28, 28, 30, 0.08);
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.45rem;
  color: var(--anthracite);
}

.form__group input,
.form__group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(28, 28, 30, 0.12);
  background: var(--white);
  color: var(--text);
  transition: border-color var(--transition);
  resize: vertical;
}

.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--gold);
}

.form__group input.is-invalid,
.form__group textarea.is-invalid {
  border-color: #b33a3a;
}

.form__error {
  display: block;
  font-size: 0.8rem;
  color: #b33a3a;
  margin-top: 0.3rem;
  min-height: 1.1em;
}

.form__success {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(196, 163, 90, 0.12);
  border: 1px solid var(--border);
  color: var(--anthracite);
  font-size: 0.9rem;
  text-align: center;
}

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  padding: calc(var(--header-h) + 4rem) 0 4rem;
  background: var(--anthracite);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(196, 163, 90, 0.12) 0%, transparent 50%),
    url("https://images.unsplash.com/photo-1618221195710-dd6b41faaea6?w=1600&q=60") center/cover;
  opacity: 0.25;
}

.page-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-hero__content .section__eyebrow {
  color: var(--gold-light);
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.04em;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

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

.breadcrumb span {
  color: var(--gold-light);
}

/* ---------- Detail Pages ---------- */
.detail {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.detail__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
  margin-bottom: 3.5rem;
}

.detail__image {
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  background-color: var(--marble-vein);
  border: 1px solid var(--border);
}

.detail__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--black);
  margin-bottom: 1rem;
}

.detail__lead {
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.detail__block {
  margin-bottom: 1.75rem;
}

.detail__block h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--gold-dark);
  margin-bottom: 0.65rem;
}

.detail__block ul {
  display: grid;
  gap: 0.45rem;
}

.detail__block li {
  position: relative;
  padding-left: 1.15rem;
  font-weight: 300;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.detail__block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.detail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.detail-gallery {
  margin-bottom: 3.5rem;
}

.detail-gallery__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  text-align: center;
  letter-spacing: 0.04em;
}

.detail-gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.detail-gallery__item {
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  background-color: var(--marble-vein);
  transition: transform var(--transition), opacity var(--transition);
}

.detail-gallery__item:hover {
  transform: scale(1.02);
  opacity: 0.9;
}

/* Process steps */
.process {
  margin: 3rem 0;
}

.process__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 1.75rem;
  letter-spacing: 0.04em;
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.process__step {
  padding: 1.5rem 1.25rem;
  border-top: 2px solid var(--gold);
  background: var(--white-pure);
  border-right: 1px solid rgba(28, 28, 30, 0.06);
  border-bottom: 1px solid rgba(28, 28, 30, 0.06);
  border-left: 1px solid rgba(28, 28, 30, 0.06);
}

.process__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 0.65rem;
}

.process__step h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.process__step p {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-muted);
}

/* FAQ */
.faq {
  margin: 3rem 0;
}

.faq__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}

.faq__item {
  border-bottom: 1px solid rgba(28, 28, 30, 0.08);
}

.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 0;
  text-align: left;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--black);
  letter-spacing: 0.02em;
}

.faq__question i {
  color: var(--gold);
  transition: transform var(--transition);
  font-size: 0.8rem;
}

.faq__item.is-open .faq__question i {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq__item.is-open .faq__answer {
  max-height: 300px;
  padding-bottom: 1.15rem;
}

.faq__answer p {
  font-weight: 300;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Blog article */
.article {
  max-width: 760px;
  margin: 0 auto;
}

.article__meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 1.5rem;
}

.article__image {
  aspect-ratio: 16 / 9;
  background-size: cover;
  background-position: center;
  margin-bottom: 2.5rem;
}

.article__body h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin: 2rem 0 0.85rem;
  letter-spacing: 0.03em;
}

.article__body p {
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 1.15rem;
}

.article__body ul {
  margin: 0 0 1.5rem 1.25rem;
  list-style: disc;
}

.article__body li {
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.article__cta {
  margin-top: 3rem;
  padding: 2rem;
  text-align: center;
  background: var(--anthracite);
  color: var(--white);
}

.article__cta p {
  font-weight: 300;
  margin-bottom: 1.25rem;
  color: rgba(255, 255, 255, 0.75);
}

/* Contact page extras */
.contact-page .contact__grid {
  margin-top: 0;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 4rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer__desc {
  margin-top: 1.25rem;
  font-weight: 300;
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer__heading {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer__links {
  display: grid;
  gap: 0.55rem;
}

.footer__links a {
  font-size: 0.9rem;
  font-weight: 300;
  transition: color var(--transition), padding-left var(--transition);
}

.footer__links a:hover {
  color: var(--gold);
  padding-left: 4px;
}

.footer__contact {
  display: grid;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 300;
}

.footer__contact i {
  color: var(--gold);
  width: 1.1rem;
  margin-right: 0.45rem;
}

.footer__social {
  display: flex;
  gap: 0.65rem;
  margin-top: 1.35rem;
}

.footer__social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--white);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.footer__social a:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--black);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.35rem 0;
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  font-weight: 300;
}

.footer__legal {
  display: flex;
  gap: 1.5rem;
}

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

/* ---------- Floating Social Buttons ---------- */
.float-btn {
  position: fixed;
  right: 1.35rem;
  z-index: 900;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--white);
  font-size: 1.45rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition), box-shadow var(--transition);
}

.float-btn:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.float-btn--whatsapp {
  bottom: 1.35rem;
  background: #25d366;
}

.float-btn--instagram {
  bottom: 5.35rem;
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Not Found State ---------- */
.not-found {
  text-align: center;
  padding: 4rem 1rem;
}

.not-found h2 {
  font-family: var(--font-display);
  margin-bottom: 1rem;
}

.not-found p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .products__grid,
  .services__grid,
  .blog__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .process__steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 900px) {
  .header__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--anthracite);
    padding: 6rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 1000;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .nav__link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
    padding: 0.75rem 0;
  }

  .page-inner .nav__link {
    color: rgba(255, 255, 255, 0.85);
  }

  .about__grid,
  .contact__grid,
  .detail__grid {
    grid-template-columns: 1fr;
  }

  .about__accent {
    display: none;
  }

  .about__image {
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 70px;
    --container: min(1180px, calc(100% - 2rem));
  }

  .products__grid,
  .services__grid,
  .blog__grid,
  .detail-gallery__grid,
  .process__steps,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }

  .stat {
    border-bottom: 1px solid var(--border);
  }

  .stat::after {
    display: none;
  }

  .hero {
    min-height: 560px;
  }

  .hero__nav {
    display: none;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .float-btn {
    width: 46px;
    height: 46px;
    font-size: 1.25rem;
    right: 1rem;
  }

  .float-btn--whatsapp {
    bottom: 1rem;
  }

  .float-btn--instagram {
    bottom: 4.5rem;
  }

  .footer__bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* Nav overlay on mobile */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.55);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}