:root {
  /* Design Tokens - High-End Luxury */
  --primary: #0a0a0a;
  --secondary: #0f0f0f;
  --accent: #c1a47b;
  --bg: #0a0a0a;
  --text: #e5e5e5;
  --text-light: #888888;
  --border: rgba(255, 255, 255, 0.08);
  --white: #ffffff;

  --font-main: 'Inter', sans-serif;
  --font-serif: 'Cormorant Garamond', serif;

  --container-width: 1300px;
  --spacing: 3rem;
  --transition: 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

/* New Radial Texture */
html::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(at 20% 80%, #fff 1px, transparent 0px);
  background-size: 3px 3px;
  pointer-events: none;
  z-index: 99999;
  opacity: 0.04;
  mix-blend-mode: plus-lighter;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--accent);
}

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

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Page Transitions */
.page-transition {
  opacity: 0;
  transition: opacity 1s cubic-bezier(0.19, 1, 0.22, 1);
}

/* Transition effect on the content, not the body */
.page-transition main,
.page-transition .nav-back {
  transform: translateY(15px);
  transition: transform 1s cubic-bezier(0.19, 1, 0.22, 1);
}

.page-transition.loaded {
  opacity: 1;
}

.page-transition.loaded main,
.page-transition.loaded .nav-back {
  transform: translateY(0);
}

h1,
h2,
h3 {
  font-family: var(--font-serif);
  color: var(--text);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-light);
  font-weight: 300;
  letter-spacing: 0.01em;
}

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

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

/* Premium Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem 2.8rem;
  background-color: transparent;
  color: var(--white);
  border: 1px solid var(--border);
  border-radius: 0;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.6s cubic-bezier(0.19, 1, 0.22, 1);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--white);
  transform: translateY(100%);
  transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
  z-index: -1;
}

.btn:hover {
  color: var(--primary);
  border-color: var(--white);
}

.btn:hover::after {
  transform: translateY(0);
}

/* Layouts */
.sobre-wrapper {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
  width: 100%;
  padding: 6rem 0;
}

.sobre-content h2 {
  font-size: 4.5rem;
  margin-bottom: 2.5rem;
  font-style: italic;
}

.sobre-content p {
  font-size: 1.2rem;
  line-height: 1.9;
  margin-bottom: 4rem;
  max-width: 550px;
}

.sobre-image-container {
  height: 750px;
  position: relative;
}

.sobre-image-container::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--border);
  z-index: -1;
}

.sobre-image {
  width: 100%;
  height: 100%;
  background: url('../assets/perfil.png') center center no-repeat;
  background-size: cover;
  filter: grayscale(0.25) contrast(1.1);
}

/* Projects Gallery */
.projects-wrapper {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 8rem var(--spacing);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: 4rem;
  margin-bottom: 5rem;
}

.project-card {
  position: relative;
  height: 500px;
  overflow: hidden;
  transition: var(--transition);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.19, 1, 0.22, 1);
  filter: grayscale(0.2);
}

.project-card:hover img {
  transform: scale(1.05);
  filter: grayscale(0);
}

.project-info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 2.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.6s var(--transition);
}

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

.project-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.project-info span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
}

/* Floating Mobile Button */
.floating-cta-container {
  display: none;
}

@media (max-width: 1024px) {
  .sobre-grid {
    gap: 3rem;
  }

  .sobre-content h2 {
    font-size: 3.5rem;
  }

  .sobre-image-container {
    height: 600px;
  }

  .projects-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing: 20px;
    /* Requested lateral margin on mobile */
  }

  /* Standardized top padding - Exclude home and briefing */
  body:not(.briefing-body):not(.home-body) main {
    padding-top: 6rem !important;
  }

  .sobre-wrapper {
    padding-bottom: 12rem;
    display: block;
    /* Content first, then image etc */
  }

  .sobre-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 0;
  }

  .sobre-image-container {
    height: 450px;
    order: 2;
    /* Image after text */
  }

  .sobre-content {
    text-align: center;
    order: 1;
    /* Text first */
  }

  .sobre-content h2 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .project-card {
    height: 350px;
  }

  .btn-desktop {
    display: none !important;
  }

  /* FIXED BOTTOM CTA */
  .floating-cta-container {
    display: flex !important;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    width: 100% !important;
    padding: 1.5rem var(--spacing) 2rem var(--spacing);
    background: linear-gradient(to top, var(--bg) 85%, transparent);
    z-index: 9999999;
    justify-content: center;
    align-items: center;
    pointer-events: none;
  }

  .btn-fixed-mobile {
    width: 100%;
    max-width: none;
    /* Occupy full width with 20px margins */
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    pointer-events: auto;
    display: flex !important;
  }
}

/* Nav Back */
.nav-back {
  position: absolute;
  top: 3rem;
  left: var(--spacing);
  z-index: 100;
}

.nav-back a {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--text-light);
}

.nav-back a:hover {
  color: var(--white);
}

/* Briefing Specifics */
.step-label {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-style: italic;
  margin-bottom: 4rem;
}

.loading-spinner {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}