@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

:root {
  --bg-color: #ffffff;
  --text-main: #1a1a1a;
  --text-dim: #6b6b6b;
  --accent-color: #000000;
  --border-color: #ebebeb;
  --hover-bg: #fafafa;
  --spacing: 3rem;
  --container-width: 900px;

  /* Animation timings */
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Smooth scroll for entire page */
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* =========================================
   Enhanced Scroll Reveal Animations
   ========================================= */

.reveal {
  opacity: 0;
  transform: translateY(40px);
  filter: blur(4px);
  transition:
    opacity 0.8s var(--ease-out-expo),
    transform 0.8s var(--ease-out-expo),
    filter 0.6s var(--ease-out-expo);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Staggered reveal for children */
.reveal-stagger>* {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s var(--ease-out-expo),
    transform 0.6s var(--ease-out-expo);
}

.reveal-stagger.active>*:nth-child(1) {
  transition-delay: 0.1s;
}

.reveal-stagger.active>*:nth-child(2) {
  transition-delay: 0.2s;
}

.reveal-stagger.active>*:nth-child(3) {
  transition-delay: 0.3s;
}

.reveal-stagger.active>*:nth-child(4) {
  transition-delay: 0.4s;
}

.reveal-stagger.active>*:nth-child(5) {
  transition-delay: 0.5s;
}

.reveal-stagger.active>* {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   Links and Base Elements
   ========================================= */

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s var(--ease-smooth);
}

a:hover {
  opacity: 0.7;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* =========================================
   Header with Glass Effect
   ========================================= */

header {
  padding: 1.25rem 0;
  border-bottom: 1px solid transparent;
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 100;
  transition:
    border-color 0.3s var(--ease-smooth),
    box-shadow 0.3s var(--ease-smooth),
    padding 0.3s var(--ease-smooth);
}

header.scrolled {
  border-bottom-color: var(--border-color);
  box-shadow: 0 1px 30px rgba(0, 0, 0, 0.04);
  padding: 1rem 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: transform 0.3s var(--ease-out-expo);
}

.logo:hover {
  transform: scale(1.02);
}

.logo-text {
  font-family: 'Inter', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.logo-text-light {
  font-weight: 300;
}

.logo-icon {
  height: 38px;
  width: auto;
  display: block;
  transition: transform 0.4s var(--ease-out-expo);
}

.logo:hover .logo-icon {
  transform: rotate(-5deg) scale(1.05);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav ul li a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 0.5rem 0;
  transition: color 0.3s var(--ease-smooth);
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--text-main);
  transition: width 0.4s var(--ease-out-expo);
}

nav ul li a:hover {
  color: var(--text-main);
  opacity: 1;
}

nav ul li a:hover::after {
  width: 100%;
}

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

section {
  padding: 3rem 0;
}

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

.hero {
  text-align: center;
  padding: 7rem 0 5rem;
  position: relative;
}

.slogan {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
  color: #000;

  /* Gradient Text Animation */
  background: linear-gradient(135deg, #000 0%, #333 50%, #000 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* =========================================
   CTA Button with Premium Animation
   ========================================= */

.cta-button {
  display: inline-block;
  background-color: #000;
  color: #fff;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease-out-expo);
}

.cta-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s var(--ease-smooth);
}

.cta-button:hover {
  background-color: #1a1a1a;
  transform: translateY(-3px);
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  opacity: 1;
}

.cta-button:hover::before {
  opacity: 1;
}

.cta-button:active {
  transform: translateY(-1px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

/* =========================================
   Project Items
   ========================================= */

.project-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.project-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all 0.4s var(--ease-out-expo);
}

.project-item:hover {
  background-color: var(--hover-bg);
  padding-left: 1.5rem;
  border-color: transparent;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
}

.project-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.project-meta {
  color: var(--text-dim);
  font-size: 0.9rem;
}

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

.about-grid {
  display: flex;
  gap: 3rem;
  align-items: center;
  margin-top: 2rem;
}

.about-image {
  flex: 1;
}

/* Image Hover Effect with Smooth Transition */
.img-container {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  transition: all 0.5s var(--ease-out-expo);
}

.img-container:hover {
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

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

/* Old image (Reference for aspect ratio) */
.about-img.reference {
  filter: grayscale(100%);
  position: relative;
  z-index: 1;
}

/* Current image (Overlay, visible by default) */
.about-img.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  opacity: 1;
  transition: opacity 1.5s var(--ease-out-expo);
}

/* Hover: Hide overlay to reveal reference */
.img-container:hover .about-img.overlay {
  opacity: 0;
  transition: opacity 0.5s var(--ease-smooth);
}

.about-text {
  flex: 1.5;
}

.about-text h2 {
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-signature {
  width: 140px;
  height: auto;
  margin-top: 2rem;
  display: block;
  opacity: 0.15;
  filter: grayscale(100%);
  transition: all 0.5s var(--ease-out-expo);
}

.about-signature:hover {
  opacity: 0.4;
  transform: scale(1.05);
}

/* =========================================
   Testimonials Carousel
   ========================================= */

.carousel-container {
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--hover-bg) 0%, #f5f5f5 100%);
  padding: 3rem 2rem;
  border-radius: 20px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

.carousel-track {
  display: flex;
  transition: transform 0.6s var(--ease-out-expo);
}

.testimonial-card {
  min-width: 100%;
  text-align: center;
  padding: 1rem 2rem;
}

.testimonial-text {
  font-size: 1.35rem;
  font-style: italic;
  margin-bottom: 1.25rem;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.6;
}

.testimonial-author {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dim);
}

/* Navigation dots */
.carousel-nav {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

.dot {
  width: 8px;
  height: 8px;
  background-color: #d0d0d0;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.4s var(--ease-out-expo);
}

.dot:hover {
  background-color: #999;
  transform: scale(1.3);
}

.dot.active {
  background-color: #333;
  width: 24px;
  border-radius: 4px;
}

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

footer {
  text-align: center;
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  margin-top: 2rem;
  color: var(--text-dim);
  font-size: 0.875rem;
  transition: all 0.3s var(--ease-smooth);
}

footer:hover {
  color: var(--text-main);
}

/* =========================================
   Section Title
   ========================================= */

.section-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  margin-bottom: 1.75rem;
  font-weight: 600;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--text-dim);
  transition: width 0.4s var(--ease-out-expo);
}

.section-title:hover::after {
  width: 100%;
}

/* =========================================
   Partners Logos Carousel
   ========================================= */

#parceiros {
  padding: 5rem 0;
}

.partners-title {
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  letter-spacing: 0;
  line-height: 1.5;
}

.logos-carousel {
  position: relative;
  overflow: hidden;
  padding: 2.5rem 0;
}

/* Gradient overlays - smoother */
.logos-carousel::before,
.logos-carousel::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 200px;
  z-index: 2;
  pointer-events: none;
}

.logos-carousel::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-color) 0%, transparent 100%);
}

.logos-carousel::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-color) 0%, transparent 100%);
}

.logos-track {
  display: flex;
  gap: 5rem;
  animation: scroll 45s linear infinite;
  width: fit-content;
}

.logos-track:hover {
  animation-play-state: paused;
}

.logo-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 55px;
  min-width: 110px;
  transition: transform 0.4s var(--ease-out-expo);
}

.logo-item:hover {
  transform: scale(1.1);
}

.logo-item img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.5);
  transition: all 0.5s var(--ease-out-expo);
}

.logo-item img:hover {
  filter: grayscale(0%) opacity(1);
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

/* =========================================
   Hover effect for "ilustração" word
   ========================================= */

.hover-ilustracao {
  position: relative;
  display: inline-block;
  cursor: default;
  white-space: nowrap;
  transition: all 0.3s var(--ease-out-expo);
}

/* Original text stays in flow but hides on hover */
.hover-ilustracao:hover {
  color: transparent;
}

/* Pseudo-element creates the "sticker" on top */
.hover-ilustracao:hover::after {
  content: 'ilustração.';
  position: absolute;
  left: 60%;
  top: 52%;
  transform: translate(-50%, -50%) rotate(-3deg) scale(1.0);
  font-family: "Borel", cursive;
  font-size: 1.1em;
  color: #000;
  z-index: 100;

  /* Simulate thick white border stroke */
  -webkit-text-stroke: 4px #fff;
  paint-order: stroke fill;

  /* Softer drop shadow */
  filter: drop-shadow(3px 6px 12px rgba(0, 0, 0, 0.1));

  pointer-events: none;
  animation: stickerPop 0.4s var(--ease-out-expo);
}

@keyframes stickerPop {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(-8deg) scale(0.8);
  }

  100% {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(-3deg) scale(1.0);
  }
}

/* =========================================
   Project Carousel (Swiper)
   ========================================= */

.project-carousel {
  padding-top: 50px;
  padding-bottom: 70px;
  width: 100%;
  position: relative;
}

/* Gradient Fade - smoother */
.project-carousel::before,
.project-carousel::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 150px;
  z-index: 20;
  pointer-events: none;
}

.project-carousel::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-color) 0%, transparent 100%);
}

.project-carousel::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-color) 0%, transparent 100%);
}

.swiper-slide.project-card {
  background: #fff;
  width: 320px;
  height: 480px;
  border: 1px solid #eaeaea;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: all 0.5s var(--ease-out-expo);
  opacity: 0.5;
  transform: scale(0.95);
}

/* Active Slide Styling */
.swiper-slide-active.project-card {
  border-color: #e0e0e0;
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.08),
    0 0 0 1px rgba(0, 0, 0, 0.02);
  opacity: 1;
  transform: scale(1);
  z-index: 10;
}

/* Image Container */
.project-image-container {
  height: 70%;
  width: 100%;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid #f0f0f0;
}

.project-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

/* Zoom effect on active */
.swiper-slide-active .project-image-container img {
  transform: scale(1.05);
}

/* Info Section */
.project-info {
  padding: 1.5rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  background: #fff;
}

.project-title {
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.project-desc {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;

  /* Control visibility */
  display: block;
  opacity: 0;
  transform: translateY(15px);
  transition: all 0.5s var(--ease-out-expo) 0.1s;

  /* Limit lines */
  display: -webkit-box;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Show description only on active slide */
.swiper-slide-active .project-desc {
  opacity: 1;
  transform: translateY(0);
}

/* Pagination Customization */
.swiper-pagination-bullet {
  background: #e0e0e0;
  opacity: 1;
  width: 8px;
  height: 8px;
  transition: all 0.4s var(--ease-out-expo);
}

.swiper-pagination-bullet-active {
  background: #333;
  width: 28px;
  border-radius: 4px;
}

/* Navigation Arrows */
.project-carousel .swiper-button-prev,
.project-carousel .swiper-button-next {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-main);
  z-index: 30;
  transition: all 0.4s var(--ease-out-expo);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.project-carousel .swiper-button-prev:hover,
.project-carousel .swiper-button-next:hover {
  background: var(--text-main);
  color: #fff;
  border-color: var(--text-main);
  transform: scale(1.08);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.project-carousel .swiper-button-prev:active,
.project-carousel .swiper-button-next:active {
  transform: scale(0.96);
}

.project-carousel .swiper-button-prev::after,
.project-carousel .swiper-button-next::after {
  font-size: 16px;
  font-weight: 700;
}

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

/* Clickable Project Cards */
a.project-card.project-link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

a.project-card.project-link:hover {
  opacity: 1;
}


@media (max-width: 768px) {
  .about-grid {
    flex-direction: column-reverse;
    gap: 2rem;
  }

  .slogan {
    font-size: 2.25rem;
  }

  .hero {
    padding: 5rem 0 4rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .partners-title {
    font-size: 0.95rem;
    margin-bottom: 2rem;
    padding: 0 1rem;
  }

  .logos-carousel::before,
  .logos-carousel::after {
    width: 100px;
  }

  .logos-track {
    gap: 3.5rem;
  }

  .logo-item {
    min-width: 90px;
    height: 45px;
  }

  .swiper-slide.project-card {
    width: 280px;
    height: 440px;
  }

  .project-info {
    padding: 1.25rem 1rem;
  }

  .project-title {
    font-size: 1.05rem;
  }

  .project-desc {
    font-size: 0.85rem;
    -webkit-line-clamp: 3;
    line-clamp: 3;
  }

  nav ul {
    gap: 1.25rem;
  }

  nav ul li a {
    font-size: 0.8rem;
  }

  .about-text h2 {
    font-size: 1.5rem;
  }

  .about-text p {
    font-size: 1rem;
  }

  .testimonial-text {
    font-size: 1.15rem;
  }
}

/* =========================================
   Loading Animation for Page Entry
   ========================================= */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

.hero.active .slogan {
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.1s both;
}

.hero.active p {
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.2s both;
}

.hero.active .cta-button {
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.3s both;
}

/* =========================================
   Smooth Selection Color
   ========================================= */

::selection {
  background-color: rgba(0, 0, 0, 0.1);
  color: #000;
}

/* =========================================
   Focus States for Accessibility
   ========================================= */

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--text-main);
  outline-offset: 3px;
}

/* =========================================
   Custom Scrollbar (Subtle)
   ========================================= */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #d0d0d0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #b0b0b0;
}