/*
 * Instituto Vieira — Odontologia & Saúde
 * Editorial Luxury Stylesheet & Architectural Design System
 */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400&family=DM+Sans:wght@200;300;400;500;600&display=swap');

/* Design Tokens & CSS Variables */
:root {
  /* Color Palette (Luxury Matte Light Mode) */
  --color-bg-base: #faf8f5;
  --color-bg-surface: #ffffff;
  --color-bg-card: #f4f0ea;
  
  --color-gold-base: #826a4e;
  --color-gold-light: #b89d7c;
  --color-gold-dark: #70593f;
  --color-gold-muted: rgba(130, 106, 78, 0.06);
  
  --color-text-primary: #0a0a0a;
  --color-text-secondary: #2c2925;
  --color-text-muted: #6b6660;
  
  --color-border-dark: #ded9d0;
  --color-border-gold: rgba(130, 106, 78, 0.15);
  
  /* Fonts */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  
  /* Layout & Spacing */
  --transition-spring: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  --max-width: 1300px;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background-color: var(--color-bg-base);
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* FILM GRAIN TEXTURE OVERLAY (Adds physical, high-end paper texture) */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035; /* Subtle texture overlay */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Custom Selection */
::selection {
  background-color: var(--color-gold-base);
  color: var(--color-bg-base);
}

/* Scrollbar Style */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-base);
}
::-webkit-scrollbar-thumb {
  background: #222;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold-base);
}

/* ASYMMETRIC GRID GUIDES (Architectural visual guide lines) */
.bg-grid {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-width);
  height: 100%;
  pointer-events: none;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 2.5fr 2.5fr 1.2fr;
  padding: 0 40px;
}
.bg-grid-line {
  position: relative;
  overflow: hidden;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, 
    rgba(197, 168, 128, 0) 0%, 
    rgba(197, 168, 128, 0.02) 15%, 
    rgba(197, 168, 128, 0.02) 85%, 
    rgba(197, 168, 128, 0) 100%);
}
.bg-grid-line-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, transparent, rgba(197, 168, 128, 0.18), transparent);
  transition: height 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

/* CURSOR SPOTLIGHT GLOW */
.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(150, 125, 94, 0.15) 0%, rgba(150, 125, 94, 0.04) 50%, transparent 70%);
  transform: translate(-50%, -50%) scale(1);
  pointer-events: none;
  z-index: 2; /* Sits behind content (main-content is z-index 5) */
  mix-blend-mode: multiply;
  transition: transform 0.1s ease-out, background 0.4s ease, opacity 0.5s ease;
  opacity: 0;
  display: none;
}

@media (min-width: 1024px) {
  .cursor-glow {
    display: block;
  }
}

.cursor-glow.hovered {
  background: radial-gradient(circle, rgba(150, 125, 94, 0.25) 0%, rgba(150, 125, 94, 0.08) 50%, transparent 75%);
  transform: translate(-50%, -50%) scale(1.5);
}

/* STICKY EDITORIAL RUNNING HEADER (Rotated side text) */
.side-badge {
  position: fixed;
  left: 2.5rem;
  bottom: 8rem;
  transform: rotate(-90deg);
  transform-origin: left bottom;
  white-space: nowrap;
  z-index: 90;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  color: var(--color-gold-base);
  text-transform: uppercase;
  opacity: 0.5;
  display: none;
}

@media (min-width: 1024px) {
  .side-badge {
    display: block;
  }
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-text-primary);
  font-weight: 300;
  line-height: 1.1;
}

h1 {
  /* Monumental Type */
  font-size: clamp(2.8rem, 5.5vw, 5.8rem);
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

h3 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.2rem;
}

p {
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.7;
  max-width: 60ch;
}

/* High-End Architectural Buttons (Offset bounds, no curves) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem 3rem;
  background-color: transparent;
  color: var(--color-gold-base);
  border: 1px solid var(--color-gold-base);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border-radius: 0px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: visible;
  z-index: 2;
}

.btn-primary-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-gold-base);
  z-index: -1;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary:hover {
  color: var(--color-bg-base);
  border-color: var(--color-gold-base);
}

.btn-primary:hover .btn-primary-bg {
  transform: scaleY(1);
}

.btn-primary-outline {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--color-border-gold);
  pointer-events: none;
  z-index: -2;
  transition: var(--transition-spring);
}

.btn-primary:hover .btn-primary-outline {
  transform: translate(4px, 4px);
  border-color: var(--color-gold-base);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem 3rem;
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-dark);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border-radius: 0px;
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  border-color: var(--color-gold-base);
  color: var(--color-gold-base);
}

/* Header & Nav */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  transition: var(--transition-smooth);
}

.header-nav.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1.2rem 5%;
  border-bottom: 1px solid var(--color-border-dark);
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-primary);
}

.logo-img {
  height: 48px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 300;
  transition: var(--transition-smooth);
  position: relative;
  padding: 5px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold-base);
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: var(--color-gold-base);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Page Layout */
.main-content {
  position: relative;
  z-index: 5;
}

section {
  padding: 10rem 10% 8rem 10%;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

/* HERO SECTION (Typographic Monument) */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 10rem;
  max-width: 100%;
  padding-left: 5%;
  padding-right: 5%;
  border-bottom: 1px solid var(--color-border-dark);
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 90%;
  margin: 0 auto;
}

.hero-subtitle {
  font-family: var(--font-sans);
  color: var(--color-gold-base);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 15px;
}

.hero-subtitle::before {
  content: '';
  display: inline-block;
  width: 30px;
  height: 1px;
  background-color: var(--color-gold-base);
}

.hero-title {
  margin-bottom: 2.5rem;
  line-height: 1.1; /* slightly wider line height for stacked line blocks */
}

.hero-line-reveal-wrapper {
  display: block;
  overflow: hidden;
  position: relative;
}

.hero-line-reveal {
  display: block;
  transform: translateY(105%);
  animation: heroLineReveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-line-reveal-wrapper:nth-child(1) .hero-line-reveal { animation-delay: 0.1s; }
.hero-line-reveal-wrapper:nth-child(2) .hero-line-reveal { animation-delay: 0.25s; }
.hero-line-reveal-wrapper:nth-child(3) .hero-line-reveal { animation-delay: 0.4s; }
.hero-line-reveal-wrapper:nth-child(4) .hero-line-reveal { animation-delay: 0.55s; }

@keyframes heroLineReveal {
  to {
    transform: translateY(0);
  }
}

.accent-gold {
  font-style: italic;
  font-family: var(--font-serif);
  color: var(--color-gold-base);
  font-weight: 300;
}

.hero-desc {
  font-size: 1.3rem;
  font-weight: 200;
  margin-bottom: 4rem;
  max-width: 50ch;
}

.hero-ctas {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

/* Big Watermarked SVG Logo in the Hero Background (Overlapping Depth) */
.hero-bg-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40%;
  max-width: 350px;
  height: auto;
  opacity: 0.03;
  pointer-events: none;
  z-index: -1;
  filter: drop-shadow(0 0 30px rgba(197, 168, 128, 0.2));
  transform-origin: center;
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 3rem;
}

@media (min-width: 992px) {
  .hero-layout {
    grid-template-columns: 1.4fr 1fr;
    gap: 5rem;
    align-items: center;
  }
  .hero-image-wrapper {
    margin-top: 0;
  }
}

.hero-image {
  width: 100%;
  max-width: 400px;
  height: 520px;
  object-fit: cover;
  border-radius: 0px; /* Cantos retos luxuosos */
  border: 1px solid var(--color-border-dark);
  filter: grayscale(1) contrast(1.1) brightness(0.95) sepia(0.04);
  transition: var(--transition-smooth);
}

.hero-image-wrapper:hover .hero-image {
  filter: grayscale(0.6) contrast(1.15) brightness(1.0) sepia(0.06);
  transform: scale(1.02);
}

.hero-image-border {
  position: absolute;
  top: 15px;
  left: 15px;
  width: 100%;
  max-width: 400px;
  height: 520px;
  border: 1px solid var(--color-gold-base);
  pointer-events: none;
  z-index: -1;
  transition: var(--transition-spring);
}

.hero-image-wrapper:hover .hero-image-border {
  transform: translate(6px, 6px);
  border-color: var(--color-gold-light);
}

.section-divider-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-gold-base);
  opacity: 0.65;
  text-align: center;
  margin-top: 7rem;
  margin-bottom: 2rem;
  letter-spacing: 0.08em;
  position: relative;
  z-index: 10;
}

/* SECTION 2 — PROBLEMA (Extreme Asymmetry 90/10) */
.problem-section {
  background-color: var(--color-bg-base);
  border-bottom: 1px solid var(--color-border-dark);
  padding-left: 5%;
  padding-right: 5%;
  max-width: 100%;
}

.problem-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 992px) {
  .problem-layout {
    grid-template-columns: 1fr 1.6fr;
  }
}

.problem-visual {
  border-left: 1px solid var(--color-gold-base);
  padding-left: 3rem;
  display: flex;
  align-items: center;
}

.problem-tag {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2.8rem;
  color: var(--color-gold-base);
  line-height: 1.25;
  font-weight: 300;
}

.problem-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.problem-content h2 {
  font-weight: 300;
}

.problem-content p {
  font-size: 1.2rem;
  font-weight: 300;
  margin-bottom: 2rem;
}

.problem-highlight {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 3rem;
  margin-top: 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 576px) {
  .problem-highlight {
    grid-template-columns: 1fr 1fr;
  }
}

.highlight-item h4 {
  font-family: var(--font-serif);
  color: var(--color-gold-base);
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 0.8rem;
}

.highlight-item p {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

/* DYNAMIC LETREIRO DESLIZANTE (MARQUEE) */
.marquee-container {
  width: 100vw;
  overflow: hidden;
  white-space: nowrap;
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border-dark);
  border-bottom: 1px solid var(--color-border-dark);
  padding: 2.2rem 0;
  margin-left: calc(-50vw + 50%);
  position: relative;
  z-index: 10;
}

.marquee-content {
  display: inline-block;
  animation: marquee 30s linear infinite;
  padding-left: 100%; /* Push initial start off-screen */
}

.marquee-text {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-style: italic;
  color: var(--color-gold-base);
  letter-spacing: 0.1em;
  display: inline-block;
  padding-right: 5rem;
  text-transform: uppercase;
}

@keyframes marquee {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-100%, 0, 0); }
}

/* SECTION 3 — TRATAMENTOS EDITORIAIS (Interactive row reveal list) */
.procedures-section {
  border-bottom: 1px solid var(--color-border-dark);
  padding-left: 5%;
  padding-right: 5%;
  max-width: 100%;
}

.procedures-header {
  text-align: left;
  max-width: var(--max-width);
  margin: 0 auto 6rem auto;
}

.procedure-list {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.procedure-row {
  display: grid;
  grid-template-columns: 60px 1.2fr 1fr 60px;
  align-items: center;
  border-bottom: 1px solid var(--color-border-dark);
  padding: 2.5rem 0;
  transition: var(--transition-smooth);
  position: relative;
  cursor: pointer;
}

.procedure-row:first-child {
  border-top: 1px solid var(--color-border-dark);
}

.procedure-row::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold-base);
  transition: var(--transition-smooth);
}

.procedure-row:hover::after {
  width: 100%;
}

.procedure-row:hover {
  background-color: rgba(197, 168, 128, 0.02);
  padding-left: 20px;
  padding-right: 20px;
}

.procedure-row-num {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-text-muted);
  transition: var(--transition-smooth);
}

.procedure-row:hover .procedure-row-num {
  color: var(--color-gold-base);
}

.procedure-row-title-area {
  display: flex;
  align-items: center;
  gap: 20px;
}

.procedure-row-icon {
  color: var(--color-gold-base);
  opacity: 0.7;
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.procedure-row-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
}

.procedure-row:hover .procedure-row-icon {
  opacity: 1;
  transform: scale(1.1);
}

.procedure-row-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 1.8vw, 1.8rem);
  color: var(--color-text-primary);
  font-weight: 300;
}

.procedure-row-desc {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  font-weight: 200;
  line-height: 1.6;
  opacity: 0.75;
  transition: var(--transition-smooth);
}

.procedure-row:hover .procedure-row-desc {
  color: var(--color-text-primary);
  opacity: 1;
}

.procedure-row-arrow {
  justify-self: end;
  color: var(--color-text-muted);
  transition: var(--transition-smooth);
}

.procedure-row-arrow svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  transition: var(--transition-spring);
}

.procedure-row:hover .procedure-row-arrow svg {
  color: var(--color-gold-base);
  transform: translateX(10px) scale(1.15);
}

/* Procedures Section Grid Layout & Interactive Preview */
.procedures-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: start;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 992px) {
  .procedures-layout {
    grid-template-columns: 1.7fr 1fr;
  }
}

.procedure-preview-container {
  position: relative;
  width: 100%;
  z-index: 5;
  display: block; /* Visible on mobile */
  margin-top: 2rem;
}

@media (min-width: 992px) {
  .procedure-preview-container {
    position: sticky;
    top: 150px;
    margin-top: 1rem;
  }
}

.procedure-preview-panel {
  position: relative;
  width: 100%;
  height: 320px; /* Compact height on mobile */
  overflow: hidden;
  border: 1px solid var(--color-border-dark);
  background-color: var(--color-bg-surface);
}

@media (min-width: 992px) {
  .procedure-preview-panel {
    height: 520px; /* Restore desktop height */
  }
}

.procedure-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.1) brightness(0.95) sepia(0.04);
  opacity: 1;
  transition: opacity 0.3s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scale(1);
}

.procedure-preview-border {
  position: absolute;
  top: 15px;
  left: 15px;
  width: 100%;
  height: 320px; /* Compact height on mobile */
  border: 1px solid var(--color-gold-base);
  pointer-events: none;
  z-index: -1;
  transition: var(--transition-spring);
}

@media (min-width: 992px) {
  .procedure-preview-border {
    height: 520px; /* Restore desktop height */
  }
}

.procedure-preview-container:hover .procedure-preview-border {
  transform: translate(6px, 6px);
  border-color: var(--color-gold-light);
}

.procedure-preview-container:hover .procedure-preview-img {
  transform: scale(1.02);
}

/* Stacking rows on mobile is handled in the bottom media query block */

/* LIGHT SECTION OVERRIDES (Chromatic Rhythm Contrast Block) */
.dark-section {
  background-color: #090909 !important;
  color: #fcfcfc !important;
  max-width: 100% !important;
  width: 100% !important;
  padding-left: 10% !important;
  padding-right: 10% !important;
  border-bottom: 1px solid #1a1a1a !important;
  position: relative;
}

.dark-section > * {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .dark-section {
    padding-left: 6% !important;
    padding-right: 6% !important;
  }
}

.dark-section h2 {
  color: #fcfcfc !important;
}

.dark-section h3 {
  color: #fcfcfc !important;
}

.dark-section p {
  color: #c5c5c5 !important;
}

.dark-section .hero-subtitle {
  color: #e0cca8 !important;
}

.dark-section .hero-subtitle::before {
  background-color: #e0cca8 !important;
}

.dark-section .diferencial-num {
  color: #e0cca8 !important;
}

/* SECTION 4 — CTA INTERMEDIÁRIO + PROVA SOCIAL (Asymmetric stack) */
.social-proof-section {
  background-color: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-dark);
  padding-left: 5%;
  padding-right: 5%;
  max-width: 100%;
}

.proof-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 992px) {
  .proof-layout {
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
  }
}

.proof-cta {
  display: flex;
  flex-direction: column;
}

.proof-cta h2 {
  font-weight: 300;
  line-height: 1.1;
}

.proof-counter {
  margin: 3rem 0;
  display: flex;
  align-items: center;
  gap: 25px;
}

.counter-num {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 300;
  color: var(--color-gold-base);
  line-height: 0.8;
  letter-spacing: -0.05em;
}

.counter-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-secondary);
}

.feedbacks-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .feedbacks-container {
    grid-template-columns: 1fr 1fr;
  }
  .feedback-card:nth-child(1) {
    margin-top: 0;
  }
  .feedback-card:nth-child(2) {
    margin-top: 5rem; /* Asymmetric offset height */
  }
  .feedback-card:nth-child(3) {
    grid-column: span 2;
    max-width: 85%;
    margin: 2rem auto 0 auto;
  }
}

.feedback-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-dark);
  padding: 2.5rem;
  transition: var(--transition-smooth);
}

.feedback-card:hover {
  border-color: var(--color-border-gold);
}

.feedback-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.feedback-author {
  display: flex;
  align-items: center;
  gap: 15px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background-color: var(--color-gold-muted);
  border: 1px solid var(--color-border-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold-base);
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.25rem;
}

.author-name {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.2;
}

.author-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 300;
}

.stars {
  display: flex;
  gap: 4px;
  color: var(--color-gold-base);
  font-size: 0.95rem;
}

.feedback-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-weight: 300;
}

/* SECTION 5 — DIFERENCIAIS */
.diferenciais-section {
  border-bottom: 1px solid var(--color-border-dark);
}

.diferenciais-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5rem;
}

@media (min-width: 992px) {
  .diferenciais-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.diferencial-item {
  display: flex;
  gap: 30px;
}

.diferencial-num {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 200;
  color: var(--color-gold-base);
  line-height: 0.75;
  letter-spacing: -0.05em;
}

.diferencial-content h3 {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 1.45rem;
  margin-bottom: 1rem;
}

.diferencial-content p {
  font-size: 1.05rem;
  font-weight: 300;
}

/* FOOTER SECTION */
.footer-section {
  background-color: var(--color-bg-base);
  padding: 8rem 5% 5rem 5%;
  border-top: 1px solid var(--color-border-dark);
  max-width: 100%;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5rem;
  margin-bottom: 6rem;
  max-width: var(--max-width);
  margin: 0 auto 5rem auto;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 35% 65%;
  }
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.footer-tagline {
  font-size: 1.15rem;
  font-weight: 200;
}

.footer-details {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 576px) {
  .footer-details {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-details {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-block h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-base);
  margin-bottom: 1.5rem;
}

.footer-block p, .footer-block a {
  font-size: 1rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 200;
  transition: var(--transition-smooth);
}

.footer-block a:hover {
  color: var(--color-gold-base);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 30px;
}

.footer-bottom-links a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-bottom-links a:hover {
  color: var(--color-gold-base);
}

/* ANIMATIONS (Scroll triggered classes) */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.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; }

/* Responsive adjustments & Mobile UI/UX Optimizations */
.nav-btn-text-mobile {
  display: none;
}
.nav-btn-text-desktop {
  display: inline;
}
.header-cta {
  padding: 0.75rem 2rem;
  font-size: 0.75rem;
}

@media (max-width: 992px) {
  /* Procedure row stack layout for mobile */
  .procedure-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 2.2rem 0;
  }
  .procedure-row:hover {
    padding-left: 10px;
    padding-right: 10px;
  }
  .procedure-row-num {
    font-size: 1.1rem;
    color: var(--color-gold-base);
  }
  .procedure-row-title-area {
    gap: 12px;
  }
  .procedure-row-desc {
    padding-left: 0;
    font-size: 1rem;
    line-height: 1.5;
  }
  .procedure-row-arrow {
    display: none;
  }
}

@media (max-width: 768px) {
  /* Tighter, more comfortable vertical padding for sections */
  section {
    padding: 5.5rem 6% 4.5rem 6%;
  }
  
  /* Adjusted monumental hero title clamp size for mobile screen limits */
  h1 {
    font-size: clamp(2.2rem, 7vw, 4rem);
  }

  .header-nav {
    padding: 1.2rem 6%;
  }
  .header-nav.scrolled {
    padding: 0.9rem 6%;
  }
  .nav-links {
    display: none;
  }
  
  /* Hide 2 of the 4 background guide lines on mobile to reduce visual noise */
  .bg-grid {
    grid-template-columns: 1fr 1fr;
    padding: 0 6%;
  }
  .bg-grid-line:nth-child(3),
  .bg-grid-line:nth-child(4) {
    display: none;
  }
}

@media (max-width: 576px) {
  /* Responsive header button text swap */
  .nav-btn-text-desktop {
    display: none;
  }
  .nav-btn-text-mobile {
    display: inline;
  }
  .header-nav .btn-primary {
    padding: 0.6rem 1.2rem;
    font-size: 0.72rem;
  }
  .header-nav .btn-primary-outline {
    top: 4px;
    left: 4px;
  }
  .header-nav .btn-primary:hover .btn-primary-outline {
    transform: translate(2px, 2px);
  }

  /* Reduce padding on testimonial cards to maximize space for text */
  .feedback-card {
    padding: 1.8rem;
  }
  .feedback-text {
    font-size: 1.05rem;
  }

  /* Soft scroll parallax emblem size */
  .hero-bg-logo {
    width: 100%;
  }
}

@media (max-width: 480px) {
  /* Hero buttons stretch to full width for better mobile touch targeting (Fitts' Law) */
  .hero-ctas {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
  }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary {
    width: 100%;
    text-align: center;
    padding: 1.1rem 2rem;
  }
}