/* ==========================================================================
   STYLE SHEET - MENEZES & VALENTE ADVOCACIA PATRIMONIAL
   ========================================================================== */

/* 1. Global Variables & Themes */
:root {
  --color-primary: #4C001A;      /* deep burgundy crimson */
  --color-deep: #282120;         /* rich warm charcoal/espresso black */
  --color-light: #FAF8F6;        /* exquisite delicate cashmere/soft white */
  --color-gold: #C7B18A;         /* luxury discrete gold/sand */
  --color-gold-hover: #bda57b;   /* slightly darker gold for feedback */
  --color-text-dark: #282120;    /* high contrast rich body dark */
  --color-text-light: #F7F3EA;   /* soft off-white text */
  --color-text-gray: #8A817F;    /* elegant warm gray */
  --color-border-light: #E5DDD3; /* soft champagne border */
  --color-border-dark: #39000A;  /* deep rich oxblood/crimson border */
  --gradient-gold: linear-gradient(135deg, #C7B18A 0%, #A68E65 100%);
  
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  
  --site-max-width: 1200px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease-out;
}

/* 2. Reset and Base Elements */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

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

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

ul {
  list-style: none;
}

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

/* 3. Typography Hierarchy */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 300;     /* light elegant serifs */
  line-height: 1.25;
}

/* Elegant editorial display styles */
.logo-serif-italic {
  font-style: italic;
  font-weight: 400;
  opacity: 0.85;
  color: var(--color-gold);
}

.hero-title-italic {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 300;
}

.serif-title-italic {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 300;
}

/* 4. Common Design Components & Helpers */
.section-container {
  width: 100%;
  max-width: var(--site-max-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Tags/Labels on top of titles */
.section-tag-light {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
  position: relative;
}

.section-tag-gold {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-size: 44px; /* between 36px and 48px */
  color: var(--color-primary);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 300;
  color: var(--color-text-gray);
  max-width: 720px;
  margin-bottom: 48px;
}

.section-header-centered {
  text-align: center;
  margin-bottom: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 5. Buttons Framework */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 14px; /* between 13px and 15px */
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 0; /* clean luxury razor sharp borders */
  transition: var(--transition-smooth);
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-deep);
  border: 1px solid var(--color-gold);
  box-shadow: 0 10px 30px rgba(199, 177, 138, 0.15);
}

.btn-primary:hover {
  background: var(--color-gold-hover);
  border-color: var(--color-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 35px rgba(199, 177, 138, 0.25);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text-light);
  border: 1px solid rgba(199, 177, 138, 0.4);
}

.btn-outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background-color: rgba(199, 177, 138, 0.05);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline-dark:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  transform: translateY(-2px);
}

/* 6. Navigation Header Styling */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
  padding: 24px 0;
}

/* State when user scrolls down - gains elegant solidity */
.main-header.scrolled {
  background-color: rgba(40, 33, 32, 0.96); /* Elegant near black warm charcoal with safety backdrop */
  border-bottom: 1px solid var(--color-border-dark);
  padding: 14px 0;
  backdrop-filter: blur(12px);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--site-max-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

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

.logo-subtext {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-gold);
  font-weight: 500;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-text-light);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Scrolled visual adaptions for scroll colors */
.main-header:not(.scrolled) .nav-item {
  color: var(--color-text-light);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-item {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: rgba(247, 243, 234, 0.85);
  letter-spacing: 0.05em;
  position: relative;
  padding: 8px 0;
}

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

.nav-item:hover {
  color: var(--color-gold);
}

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  z-index: 1100;
}

.mobile-menu-toggle .bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-light);
  transition: var(--transition-smooth);
}

/* 7. Hero Section Styling */
.hero-section {
  position: relative;
  background-color: var(--color-primary);
  min-height: 85vh; /* as requested: min 85vh desktop */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 140px;
  padding-bottom: 80px;
  overflow: hidden;
}

/* Subtle architectural overlay lines for elite aesthetic */
.hero-background-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(199, 177, 138, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(199, 177, 138, 0.03) 1px, transparent 1px);
  background-size: 100px 100px;
  background-position: center;
  pointer-events: none;
}

.hero-background-lines::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  border: 1px solid rgba(199, 177, 138, 0.06);
  border-radius: 50%;
  pointer-events: none;
}

.hero-container {
  width: 100%;
  max-width: 960px; /* narrowed for superior text readability and impact */
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 10;
}

.hero-tag {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.35em;
  color: var(--color-gold);
  margin-bottom: 24px;
  font-weight: 600;
}

.hero-title {
  font-size: 54px; /* between 48px and 64px */
  color: var(--color-text-light);
  margin-bottom: 28px;
  letter-spacing: -0.015em;
  font-weight: 300;
  line-height: 1.2;
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: 18px; /* between 17px and 20px */
  color: rgba(247, 243, 234, 0.82);
  max-width: 780px;
  margin: 0 auto 44px auto;
  font-weight: 300;
  line-height: 1.65;
}

.hero-actions {
  display: inline-flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 8. Institutional Section Styling */
.institutional-section {
  padding-top: 110px; /* between 96px and 120px */
  padding-bottom: 110px;
  background-color: var(--color-light);
}

.institutional-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 64px; /* between 24px and 40px but a bit wider for huge screen beauty */
}

.institutional-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.institutional-paragraphs {
  font-size: 17px; /* between 16px and 18px */
  color: var(--color-text-dark);
  margin-bottom: 24px;
  line-height: 1.7;
  font-weight: 300;
}

.institutional-paragraphs:last-of-type {
  margin-bottom: 40px;
}

.institutional-image-frame {
  position: relative;
  padding: 12px;
}

/* Fine frame lines surrounding image for premium museum look */
.image-border-trim {
  position: absolute;
  top: 0;
  left: 0;
  width: 90%;
  height: 90%;
  border-top: 1px solid var(--color-border-light);
  border-left: 1px solid var(--color-border-light);
  pointer-events: none;
}

.institutional-image-frame::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 90%;
  height: 90%;
  border-bottom: 1px solid var(--color-border-light);
  border-right: 1px solid var(--color-border-light);
  pointer-events: none;
}

.institutional-img {
  width: 100%;
  height: auto;
  border-radius: 0; /* clean geometric edge */
  object-fit: cover;
  box-shadow: 0 16px 40px rgba(0,0,0,0.04);
}

/* 9. Differences (3 cards) Styling */
.differences-section {
  padding-bottom: 110px;
  background-color: var(--color-light);
}

.differences-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px; /* within user 24px - 40px range */
}

.difference-card {
  background-color: rgba(255, 255, 255, 0.45);
  border: 1px solid var(--color-border-light);
  padding: 44px 36px;
  transition: var(--transition-smooth);
}

.difference-card:hover {
  background-color: #ffffff;
  border-color: var(--color-gold);
  transform: translateY(-5px);
}

.card-icon {
  color: var(--color-gold);
  margin-bottom: 24px;
  display: inline-flex;
}

.card-icon svg {
  stroke: var(--color-gold);
}

.card-title {
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.card-text {
  font-size: 15px;
  color: var(--color-text-gray);
  line-height: 1.6;
}

/* 10. "Como Como funciona" Grid Section (6 Cards) */
.how-it-works-section {
  padding-top: 110px;
  padding-bottom: 110px;
  background-color: var(--color-light);
  border-top: 1px solid var(--color-border-light);
}

.how-works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 cols on desktop */
  gap: 32px;
}

.work-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border-light);
  padding: 40px;
  transition: var(--transition-smooth);
  position: relative;
}

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

.work-number {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--color-gold);
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: 10px;
  margin-bottom: 24px;
  display: inline-block;
  min-width: 44px;
}

.work-card-title {
  font-size: 21px;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.work-card-text {
  font-size: 15px;
  color: var(--color-text-gray);
  line-height: 1.6;
}

/* 11. Authority Section (Dark Theme) */
.authority-section {
  padding-top: 120px;
  padding-bottom: 120px;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  position: relative;
  text-align: center;
}

.dark-theme-title {
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.authority-content {
  max-width: 900px;
  margin: 0 auto;
}

.authority-paragraph {
  font-family: var(--font-sans);
  font-size: 18px;
  color: rgba(247, 243, 234, 0.8);
  margin-bottom: 48px;
  font-weight: 300;
  line-height: 1.7;
}

/* 3 indicators row */
.indicators-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.indicator-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.indicator-marker {
  width: 6px;
  height: 6px;
  background-color: var(--color-gold);
}

.indicator-text {
  font-family: var(--font-sans);
  font-size: 15px;
  letter-spacing: 0.03em;
  font-weight: 500;
  color: var(--color-text-light);
}

/* 12. "Para quem é" Section */
.audience-section {
  padding-top: 110px;
  padding-bottom: 110px;
  background-color: var(--color-light);
}

.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  gap: 64px;
}

.audience-info {
  display: flex;
  flex-direction: column;
}

.audience-desc {
  font-size: 17px;
  font-weight: 300;
  color: var(--color-text-gray);
  line-height: 1.7;
}

.audience-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.audience-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text-dark);
}

.list-check {
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 3px;
}

/* 13. "Por que constituir" section (Tints of Off-white/Cream) */
.why-holding-section {
  padding-top: 110px;
  padding-bottom: 110px;
  background-color: #F3EBE1; /* Elegant warm champagne-rose tint */
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  align-items: flex-start;
  gap: 64px;
}

.why-intro-paragraph {
  font-size: 17px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--color-text-dark);
}

.why-blocks {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.why-block {
  background-color: #ffffff;
  padding: 32px 36px;
  border-left: 3px solid var(--color-gold);
  box-shadow: 0 4px 20px rgba(0,0,0,0.015);
  transition: var(--transition-smooth);
}

.why-block:hover {
  transform: translateX(6px);
}

.why-block-title {
  font-size: 21px;
  color: var(--color-primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.why-block-num {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.1em;
}

.why-block-text {
  font-size: 15px;
  color: var(--color-text-gray);
  line-height: 1.6;
}

/* 14. Final CTA Section (Dark Theme) */
.final-cta-section {
  padding-top: 110px;
  padding-bottom: 110px;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  text-align: center;
}

.cta-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.cta-title {
  font-size: 48px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.2;
}

.cta-paragraph {
  font-family: var(--font-sans);
  font-size: 18px;
  color: rgba(247, 243, 234, 0.85);
  margin-bottom: 40px;
  font-weight: 300;
}

.cta-button-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.cta-subtext {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-text-gray);
}

/* 15. Footer */
.footer-section {
  background-color: var(--color-deep);
  color: var(--color-text-light);
  padding-top: 80px;
  padding-bottom: 40px;
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 64px;
  margin-bottom: 64px;
}

.footer-col-large {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-logo .logo-text {
  font-size: 22px;
}

.text-gold {
  color: var(--color-gold) !important;
}

.text-light {
  color: var(--color-text-light) !important;
}

.footer-desc {
  font-size: 14px;
  color: var(--color-text-gray);
  line-height: 1.6;
}

.footer-heading {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 24px;
  position: relative;
}

.footer-heading::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 30px;
  height: 1px;
  background-color: var(--color-gold);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links a {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text-gray);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-gold);
  transform: translateX(4px);
}

.footer-links-contact {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-links-contact li {
  font-size: 14px;
  color: var(--color-text-gray);
  line-height: 1.5;
}

.contact-label {
  display: block;
  font-weight: 600;
  color: rgba(247, 243, 234, 0.7);
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.05em;
}

.contact-link {
  color: var(--color-gold);
}

.contact-link:hover {
  color: var(--color-text-light);
}

.contact-raw {
  color: var(--color-text-gray);
}

/* Footer Bottom elements */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.footer-disclaimer {
  font-size: 12px;
  color: #556c75;
  max-width: 800px;
  line-height: 1.6;
}

.footer-copy {
  font-size: 12px;
  color: var(--color-text-gray);
}

/* 16. IntersectionObserver Fade-ins (Pure JS triggers these) */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Fallback if JS is not executed or blocked */
.no-js .animate-on-scroll,
.no-js .animate-slide-up {
  opacity: 1 !important;
  transform: none !important;
  animation: none !important;
}

.animate-on-scroll.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Delay modifiers */
.delay-1 {
  transition-delay: 0.2s;
}

.delay-2 {
  transition-delay: 0.4s;
}

.delay-3 {
  transition-delay: 0.6s;
}

/* Simple keyframe entries for Hero load (no scroll needed) */
.animate-slide-up {
  opacity: 0;
  transform: translateY(24px);
  animation: slideUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-up.delay-1 {
  animation-delay: 0.2s;
}

.animate-slide-up.delay-2 {
  animation-delay: 0.4s;
}

.animate-slide-up.delay-3 {
  animation-delay: 0.6s;
}

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

/* ==========================================================================
   17. RESPONSIBIILTY BREAKPOINTS (MEDIA QUERIES)
   ========================================================================== */

/* Tablet and below (max-width: 1024px) */
@media (max-width: 1024px) {
  /* Pads & margins adapt */
  .section-title {
    font-size: 38px;
  }
  
  .hero-title {
    font-size: 44px;
  }
  
  .how-works-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 columns on tablet */
    gap: 24px;
  }
  
  .differences-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  
  .institutional-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .audience-grid, .why-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .footer-col-large {
    grid-column: span 2;
  }
}

/* Mobile responsive (max-width: 768px) */
@media (max-width: 768px) {
  /* Sections spacings as requested: active padding 64px to 80px */
  .hero-section {
    min-height: 78vh; /* as requested: min 78vh on mobile */
    padding-top: 120px;
    padding-bottom: 70px;
  }
  
  .institutional-section,
  .differences-section,
  .how-it-works-section,
  .authority-section,
  .audience-section,
  .why-holding-section,
  .final-cta-section {
    padding-top: 72px; /* right in range 64px - 80px */
    padding-bottom: 72px;
  }
  
  /* Titles in range: 34px to 42px on mobile */
  .hero-title {
    font-size: 36px;
    line-height: 1.25;
  }
  
  .section-title {
    font-size: 32px;
    line-height: 1.3;
  }
  
  /* Subtitle on mobile: 15px to 17px */
  .hero-subtitle {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 32px;
  }
  
  .section-subtitle {
    font-size: 15px;
    margin-bottom: 36px;
  }
  
  /* Buttons stack on mobile */
  .hero-actions {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
    gap: 12px;
  }
  
  .btn {
    width: 100%; /* button widths are 100% on mobile */
  }
  
  /* Grids collapse to 1 column */
  .differences-grid,
  .how-works-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  /* Layout shifts */
  .institutional-grid {
    display: flex;
    flex-direction: column;
  }
  
  .institutional-image-frame {
    order: 2; /* image below text on mobile */
    margin-top: 24px;
  }
  
  /* Menu header and Hamburger logic */
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 290px;
    height: 100vh;
    background-color: var(--color-deep);
    border-left: 1px solid var(--color-border-dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 100px 40px 40px 40px;
    gap: 40px;
    transition: var(--transition-smooth);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
  }
  
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 24px;
  }
  
  .nav-item {
    font-size: 16px;
    width: 100%;
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
  }
  
  .header-btn {
    margin-top: auto;
    width: 100%;
  }
  
  /* Active menu state */
  .nav-menu.open {
    right: 0;
  }
  
  /* Hamburger turning into 'X' */
  .mobile-menu-toggle.open .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .mobile-menu-toggle.open .bar:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.open .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  /* Footer adaptations */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-col-large {
    grid-column: span 1;
  }
}