/* ===========================
   Reset & Base
   =========================== */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1a1a1a;
  background-color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.7;
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ===========================
   Typography
   =========================== */

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.section-subtitle {
  font-size: 1rem;
  font-weight: 300;
  color: #888;
  letter-spacing: 0.02em;
}

/* ===========================
   Header — Logo left, nav right (Gui Mattos style)
   =========================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              background 0.3s ease,
              box-shadow 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}


.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 1rem 3rem;
}

.logo {
  display: flex;
  align-items: center;
  margin-right: auto;
  transition: opacity 0.3s ease;
}

.logo:hover {
  opacity: 0.7;
}

.logo img {
  height: 38px;
  width: auto;
}

.nav {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #666;
  position: relative;
  transition: color 0.3s ease;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 1px;
  background: #1a1a1a;
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1), left 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover,
.nav-link.active {
  color: #1a1a1a;
  opacity: 1;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
  left: 0;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: #1a1a1a;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.menu-toggle.active span:first-child {
  transform: rotate(45deg) translate(2.5px, 2.5px);
}

.menu-toggle.active span:last-child {
  transform: rotate(-45deg) translate(2.5px, -2.5px);
}

/* ===========================
   Hero
   =========================== */

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.hero-image {
  position: absolute;
  inset: 0;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  transition: transform 10s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.hero.visible .hero-image img {
  transform: scale(1.03);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.6) 0%,
    rgba(0, 0, 0, 0.15) 40%,
    rgba(0, 0, 0, 0.03) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 4rem 2.5rem;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: 3.5rem;
  font-weight: 400;
  color: #fff;
  line-height: 1.15;
  max-width: 700px;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(40px);
  animation: slideReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
}

.hero-title em {
  font-style: italic;
}

.hero-subtitle {
  font-size: 1.05rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.85);
  max-width: 500px;
  margin-top: 1.25rem;
  line-height: 1.7;
  opacity: 0;
  transform: translateY(30px);
  animation: slideReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
}

.hero-cta {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.85rem 2.2rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
  transition: background 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
  opacity: 0;
  transform: translateY(30px);
  animation: slideReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.8s forwards;
}

.hero-cta:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  opacity: 1;
  transform: translateY(-2px);
}

@keyframes slideReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===========================
   Sections
   =========================== */

.section {
  padding: 7rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

/* ===========================
   Project Filters
   =========================== */

.project-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.filter-btn {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #999;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid transparent;
  transition: color 0.4s ease, border-color 0.4s ease;
}

.filter-btn:hover,
.filter-btn.active {
  color: #1a1a1a;
  border-bottom-color: #1a1a1a;
}

/* ===========================
   Project Grid
   =========================== */

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

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

.project-grid-2 .project-card {
  aspect-ratio: 3 / 2;
}

.project-card {
  position: relative;
  overflow: hidden;
  display: block;
  aspect-ratio: 4 / 3;
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card.hidden {
  display: none;
}

.project-image {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) brightness(0.95);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-image img {
  transform: scale(1.08);
  filter: grayscale(0%) brightness(1);
}

.project-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.65), transparent);
  transform: translateY(0);
  opacity: 1;
}

.project-info h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 400;
  color: #fff;
  margin-bottom: 0.25rem;
}

.project-info span {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

/* ===========================
   About
   =========================== */

.about {
  background: #fafafa;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-image {
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 550px;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-image:hover img {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.about-text {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.8;
  color: #555;
  margin-bottom: 1.25rem;
}

.about-stats {
  display: flex;
  gap: 3rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid #e0e0e0;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 400;
  color: #1a1a1a;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #999;
  margin-top: 0.25rem;
}

/* ===========================
   Newsletter
   =========================== */

.newsletter {
  background: #fff;
  padding: 5rem 0;
  border-bottom: 1px solid #eee;
}

.newsletter .section-title {
  margin-bottom: 0;
  text-transform: lowercase;
}

.newsletter-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
}

.newsletter-content {
  flex-shrink: 0;
}

.newsletter-text {
  font-size: 0.9rem;
  font-weight: 300;
  color: #555;
  line-height: 1.7;
  margin-top: 0.5rem;
}

.newsletter-form {
  flex: 1;
  max-width: 480px;
}

.newsletter-input-group {
  display: flex;
  gap: 0;
  border-bottom: 1px solid #ccc;
}

.newsletter-input-group input {
  flex: 1;
  padding: 0.75rem 0;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  color: #1a1a1a;
  background: transparent;
  border: none;
  outline: none;
}

.newsletter-input-group input::placeholder {
  color: #bbb;
  font-weight: 300;
}

.newsletter-submit {
  padding: 0.75rem 1.5rem;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: #1a1a1a;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.newsletter-submit:hover {
  opacity: 0.5;
}

/* ===========================
   Footer
   =========================== */

.footer-main {
  background: #1a1a1a;
  padding: 4rem 0;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.footer-col-end {
  align-items: flex-end;
}

.footer-logo {
  height: 28px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-col p,
.footer-col a {
  font-size: 0.8rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
}

.footer-col a:hover {
  color: #fff;
  opacity: 1;
}

.footer-social {
  display: flex;
  flex-direction: row;
  gap: 1.25rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s ease;
}

.social-icon:hover {
  color: #fff;
  opacity: 1;
}

.footer-bottom {
  background: #fff;
  padding: 1.25rem 0;
  text-align: center;
}

.footer-copy {
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: 0.03em;
  color: #999;
}

/* ===========================
   About Page (Quem Somos)
   =========================== */

.about-page {
  padding-top: 10rem;
  padding-bottom: 7rem;
}

.about-page-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-page-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.about-page-name {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 400;
  color: #1a1a1a;
  margin-bottom: 2rem;
}

.about-page-content p {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.9;
  color: #444;
  margin-bottom: 1.5rem;
}

.about-page-content p:last-child {
  margin-bottom: 0;
}

/* ===========================
   Projects Listing Page
   =========================== */

.projects-page {
  padding-top: 10rem;
}

.projects-page-title {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 400;
  color: #1a1a1a;
  margin-bottom: 3rem;
}

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

.projects-grid-3 .project-card {
  aspect-ratio: 3/4;
}

.projects-grid-3 .project-info {
  padding: 1.5rem 1.25rem;
}

.projects-grid-3 .project-info h3 {
  font-size: 1.1rem;
}

/* ===========================
   Project Page — Hero
   =========================== */

.project-hero {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 450px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.project-hero-image {
  position: absolute;
  inset: 0;
}

.project-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: heroZoomOut 8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes heroZoomOut {
  to {
    transform: scale(1);
  }
}

.project-hero-content {
  position: relative;
  z-index: 2;
  padding: 3.5rem 2.5rem;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  opacity: 0;
  transform: translateY(30px);
  animation: slideReveal 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
}

.back-link {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.25rem;
  transition: color 0.3s ease, transform 0.3s ease;
}

.back-link:hover {
  color: #fff;
  opacity: 1;
  transform: translateX(-4px);
}

.project-hero-title {
  font-family: 'Playfair Display', serif;
  font-size: 3.5rem;
  font-weight: 400;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.project-hero-category {
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}

/* ===========================
   Project Page — Details
   =========================== */

.project-details-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 5rem;
}

.project-description p {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.9;
  color: #555;
  margin-bottom: 1.25rem;
}

.project-description p:last-child {
  margin-bottom: 0;
}

.project-meta {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding-top: 0.5rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid #eee;
}

.meta-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.meta-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #999;
}

.meta-value {
  font-size: 1rem;
  font-weight: 400;
  color: #1a1a1a;
}

/* ===========================
   Project Page — Gallery
   =========================== */

.project-gallery {
  padding-bottom: 5rem;
}

.gallery-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gallery-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.gallery-item {
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item:hover img {
  transform: scale(1.03);
}

/* Full-width images preserve natural ratio */
.gallery-full img {
  height: auto;
  object-fit: initial;
}

/* Side-by-side pairs get a consistent height */
.gallery-row .gallery-item {
  aspect-ratio: 4 / 5;
}

/* ===========================
   Project Page — Navigation
   =========================== */

.project-nav {
  border-top: 1px solid #eee;
  padding: 3rem 0;
}

.project-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.project-nav-link:hover {
  opacity: 0.6;
}

.project-nav-link.prev:hover {
  transform: translateX(-6px);
}

.project-nav-link.next:hover {
  transform: translateX(6px);
}

.project-nav-link.next {
  text-align: right;
  margin-left: auto;
}

.project-nav-label {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #999;
}

.project-nav-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 400;
  color: #1a1a1a;
}

/* ===========================
   Scroll Animations
   =========================== */

.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Slide from left */
.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Slide from right */
.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale reveal */
.scale-in {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 1024px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    gap: 3rem;
  }

  .project-details-grid {
    gap: 3rem;
  }

  .projects-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transition: right 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .nav.open {
    right: 0;
  }

  .nav-link {
    font-size: 1.2rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .projects-grid-3 {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .projects-page-title {
    font-size: 2rem;
    margin-bottom: 2rem;
  }

  .about-page-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-page-name {
    font-size: 2rem;
  }

  .section {
    padding: 5rem 0;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-image img {
    height: 400px;
  }

  .about-stats {
    gap: 2rem;
  }

  .newsletter-inner {
    flex-direction: column;
    gap: 2rem;
  }

  .newsletter-form {
    max-width: 100%;
  }

  .footer-grid {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-col-end {
    align-items: flex-start;
  }

  .project-hero {
    height: 50vh;
    min-height: 350px;
  }

  .project-hero-title {
    font-size: 2.5rem;
  }

  .project-details-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .gallery-row {
    grid-template-columns: 1fr;
  }

  .gallery-row .gallery-item {
    aspect-ratio: auto;
  }

  .gallery-row .gallery-item img {
    height: auto;
    object-fit: initial;
  }

  .project-nav-name {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 1rem 1.25rem;
  }

  .container {
    padding: 0 1.25rem;
  }

  .newsletter {
    padding: 4rem 1.25rem;
  }


  .hero-content {
    padding: 3rem 1.25rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .project-filters {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .logo img {
    height: 30px;
  }
}