/* ==========================================================================
   TG DEV - MODERN DESIGN SYSTEM & GLOBAL STYLES
   ========================================================================== */

/* Import Google Fonts - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Common variables */
  --accent: #FF003C;          /* Vibrant High-Contrast Red - CTA & Highlights */
  --accent-hover: #C2002B;    /* Dark Red - Hover states */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Layout & Spacing */
  --container-max-width: 1200px;
  --header-height: 80px;
  --header-shrink-height: 70px;
  
  /* Transitions */
  --transition-fast: all 0.15s ease;
  --transition-normal: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);

  /* ==========================================
     LIGHT THEME (Default)
     ========================================== */
  --primary: #0F172A;         /* Slate 900 - Text headings / dark elements */
  --primary-light: #FFFFFF;   /* Cards bg */
  --primary-dark: #F8FAFC;    /* Slate 50 - Dark background fallback */
  
  --neutral-dark: #0F172A;    /* Slate 900 - Text primary */
  --neutral-muted: #475569;   /* Slate 600 - Text secondary */
  --neutral-light: #FFFFFF;   /* Pure white - Primary background */
  --neutral-bg-light: #F8FAFC;/* Slate 50 - Page offset background */
  
  --border-light: #E2E8F0;    /* Slate 200 border */
  --border-dark: #E2E8F0;     /* Slate 200 border dark fallback */
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.05);

  --hero-bg: linear-gradient(135deg, #F8FAFC 0%, #FFFFFF 100%);
  --hero-grid: rgba(15, 23, 42, 0.02);
  --hero-title-color: #0F172A;
  --hero-desc-color: #475569;
  --tech-circle-border: rgba(15, 23, 42, 0.05);
  --tech-circle-dash: rgba(15, 23, 42, 0.08);

  /* Background Grid Texture */
  --bg-texture: 
    radial-gradient(rgba(15, 23, 42, 0.06) 1.5px, transparent 1.5px),
    linear-gradient(rgba(15, 23, 42, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.02) 1px, transparent 1px);
  
  /* Institutional Hero Theme-Aware Variables */
  --inst-hero-bg: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.9)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?q=80&w=1200') no-repeat center center/cover;
  --inst-hero-text: var(--neutral-dark);
}

[data-theme="dark"] {
  /* ==========================================
     DARK THEME (Slate-Grey Premium)
     ========================================== */
  --primary: #F8FAFC;         /* Slate 50 - Headings light */
  --primary-light: #1F2937;   /* Slate 800 - Cards background */
  --primary-dark: #0B0F19;    /* Slate 950 - Footer background */
  
  --neutral-dark: #F8FAFC;    /* Slate 50 - Near white text */
  --neutral-muted: #94A3B8;   /* Slate 400 - Muted gray text */
  --neutral-light: #111827;   /* Slate 900 - Primary dark background */
  --neutral-bg-light: #0B0F19;/* Slate 950 background */
  
  --border-light: #374151;    /* Slate 700 - Borders dark */
  --border-dark: #1F2937;     
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.35), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.5);

  /* Hero Dark Grid */
  --hero-bg: linear-gradient(135deg, #0B0F19 0%, #111827 100%);
  --hero-grid: rgba(255, 255, 255, 0.02);
  --hero-title-color: #F8FAFC;
  --hero-desc-color: rgba(248, 250, 252, 0.7);
  --tech-circle-border: rgba(255, 255, 255, 0.05);
  --tech-circle-dash: rgba(255, 255, 255, 0.08);

  /* Background Grid Texture */
  --bg-texture: 
    radial-gradient(rgba(248, 250, 252, 0.04) 1.5px, transparent 1.5px),
    linear-gradient(rgba(248, 250, 252, 0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(248, 250, 252, 0.01) 1px, transparent 1px);

  /* Institutional Hero Theme-Aware Variables */
  --inst-hero-bg: linear-gradient(rgba(18, 18, 18, 0.95), rgba(18, 18, 18, 0.98)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?q=80&w=1200') no-repeat center center/cover;
  --inst-hero-text: var(--neutral-light);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--neutral-light);
  background-image: var(--bg-texture); /* Applied grid dot texture */
  background-size: 32px 32px, 32px 32px, 32px 32px;
  color: var(--neutral-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary);
}

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

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

input, textarea, button, select {
  font-family: inherit;
  font-size: 1rem;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-right: auto;
  margin-left: auto;
  padding-right: 2rem;
  padding-left: 2rem;
}

.section-padding {
  padding-top: 6.5rem;
  padding-bottom: 6.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--neutral-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3.5rem auto;
}

.text-accent {
  color: var(--accent);
}

.bg-dark {
  background-color: var(--neutral-bg-light);
  color: var(--neutral-dark);
  background-image: var(--bg-texture);
  background-size: 32px 32px, 32px 32px, 32px 32px;
}

.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4 {
  color: var(--primary);
}

.bg-offset {
  background-color: var(--neutral-bg-light);
  background-image: var(--bg-texture);
  background-size: 32px 32px, 32px 32px, 32px 32px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.8rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 6px;
  transition: var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
  gap: 0.5rem;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.08);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s ease-in-out;
  z-index: -1;
}

.btn:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--neutral-light);
  box-shadow: 0 4px 14px rgba(229, 9, 20, 0.25);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 6px 20px rgba(229, 9, 20, 0.35);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  opacity: 0.9;
}

.btn-secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
  background-color: rgba(255, 0, 60, 0.05);
  transform: translateY(-2px);
  opacity: 1;
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

.btn-small {
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: var(--transition-normal);
  background: transparent;
}

.header.scrolled {
  height: var(--header-shrink-height);
  background: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header.scrolled-light {
  height: var(--header-shrink-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.logo-brand {
  color: var(--accent);
  font-weight: 800;
}

.logo-name {
  color: var(--primary);
  font-weight: 700;
  transition: var(--transition-normal);
}

.logo-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--primary); /* Swap dynamically between themes */
  opacity: 0.85;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.nav-link:hover {
  color: var(--accent); /* Hover accent highlight */
  opacity: 1;
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header.scrolled-light .nav-link:hover {
  color: var(--accent);
}

.nav-cta {
  display: flex;
  align-items: center;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--primary); /* Swap dynamically */
  border-radius: 2px;
  transition: var(--transition-normal);
}

/* ==========================================================================
   PORTFOLIO MAIN LANDING (INDEX.HTML)
   ========================================================================== */

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: var(--hero-bg);
  background-image: 
    var(--bg-texture),
    var(--hero-bg);
  background-size: 32px 32px, 32px 32px, 32px 32px, 100% 100%;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, var(--neutral-light), transparent);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 4rem;
  width: 100%;
}

.hero-content {
  z-index: 5;
  animation: fadeIn 0.8s ease-out;
}

.hero-tagline {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: block;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--hero-title-color);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--hero-desc-color);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
}

/* Elegant Tech Decorative Circle */
.tech-circle {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid var(--tech-circle-border);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: rotateSlow 20s linear infinite;
}

.tech-circle::before {
  content: '';
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 2px dashed var(--tech-circle-dash);
  position: absolute;
}

.tech-circle::after {
  content: '';
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229, 9, 20, 0.15) 0%, transparent 70%);
  position: absolute;
}

.tech-node {
  position: absolute;
  background-color: var(--accent);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(229, 9, 20, 0.3);
  animation: counterRotate 20s linear infinite;
}

.node-1 { top: -10px; left: calc(50% - 40px); }
.node-2 { bottom: 20px; right: -20px; }
.node-3 { bottom: 20px; left: -20px; }

/* Differential Section */
.differential-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.diff-card {
  background: var(--neutral-light);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 3rem 2.5rem;
  transition: var(--transition-normal);
  position: relative;
}

.diff-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--primary);
  border-radius: 8px 8px 0 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.diff-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.diff-card:hover::before {
  transform: scaleX(1);
  background-color: var(--accent);
}

.diff-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 6px;
  background-color: var(--neutral-bg-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 2rem;
  transition: var(--transition-normal);
}

.diff-card:hover .diff-icon-wrapper {
  background-color: var(--primary);
  color: var(--neutral-light);
}

.diff-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.diff-card p {
  color: var(--neutral-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Showcase Section */
.showcase-section {
  position: relative;
  background-color: var(--neutral-bg-light); /* Swap dynamically */
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2.5rem;
}

.showcase-card {
  background: var(--primary-light); /* Swap dynamically */
  border: 1px solid var(--border-light); /* Swap dynamically */
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.showcase-card:hover {
  transform: translateY(-5px);
  border-color: rgba(229, 9, 20, 0.4);
  box-shadow: var(--shadow-premium);
}

.showcase-img-container {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background-color: var(--primary-dark);
  border-bottom: 1px solid var(--border-light);
}

.showcase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: var(--transition-slow);
}

.showcase-card:hover .showcase-img {
  transform: scale(1.05);
}

.showcase-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.08em;
}

.showcase-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.showcase-card h3 {
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.showcase-card p {
  color: var(--neutral-muted);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.showcase-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
  align-self: flex-start;
  transition: var(--transition-fast);
}

.showcase-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform 0.2s ease;
}

.showcase-link:hover {
  color: var(--neutral-light);
}

.showcase-link:hover svg {
  transform: translateX(4px);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h2 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.contact-info p {
  color: var(--neutral-muted);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem;
  background-color: var(--neutral-bg-light);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  transition: var(--transition-normal);
}

.channel-card:hover {
  border-color: var(--primary);
  background-color: var(--neutral-light);
  box-shadow: var(--shadow-md);
}

.channel-icon {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  background-color: var(--primary);
  color: var(--neutral-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.channel-card.whatsapp:hover .channel-icon {
  background-color: #25D366;
}

.channel-card.email:hover .channel-icon {
  background-color: var(--accent);
}

.channel-details {
  display: flex;
  flex-direction: column;
}

.channel-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--neutral-muted);
  letter-spacing: 0.05em;
}

.channel-value {
  font-weight: 600;
  color: var(--primary);
  font-size: 1.05rem;
}

/* Contact Form */
.contact-form-wrapper {
  background-color: var(--neutral-light);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  border-radius: 12px;
  padding: 3rem;
}

.contact-form-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
}

.form-input {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background-color: var(--neutral-bg-light);
  transition: var(--transition-fast);
  color: var(--neutral-dark);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--neutral-light);
  box-shadow: 0 0 0 3px rgba(18, 18, 18, 0.1);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-status {
  padding: 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 1.5rem;
  display: none;
}

.form-status.success {
  display: block;
  background-color: #DEF7EC;
  color: #03543F;
  border: 1px solid #BCF0DA;
}

.form-status.error {
  display: block;
  background-color: #FDE8E8;
  color: #9B1C1C;
  border: 1px solid #FBD5D5;
}

/* Footer */
.footer {
  background-color: var(--primary-dark); /* Swap dynamically */
  color: var(--neutral-muted);
  padding: 4rem 0;
  border-top: 1px solid var(--border-light);
}

.footer-copyright {
  color: var(--neutral-muted) !important;
}

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

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  font-size: 0.9rem;
}

.footer-link:hover {
  color: var(--accent);
}

.footer-copyright {
  font-size: 0.85rem;
  margin-top: 2rem;
  text-align: center;
  border-top: 1px solid var(--border-light);
  padding-top: 2rem;
  width: 100%;
}


/* ==========================================================================
   DEMO COMMON STYLES (HEADER, HERO, LAYOUTS)
   ========================================================================= */
.demo-body {
  background-color: var(--neutral-bg-light);
}

.demo-nav-cta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.demo-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  background-color: var(--accent);
  color: var(--neutral-light);
  border-radius: 4px;
  text-transform: uppercase;
}

.demo-back-btn {
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary);
  transition: var(--transition-fast);
}

.demo-back-btn:hover {
  color: var(--accent);
}

/* Demo Return Banner */
.demo-banner {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 1001;
  background: var(--primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  padding: 0.85rem 1.75rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--neutral-light);
  animation: slideUpBanner 0.6s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  animation-delay: 1.5s;
}

.demo-banner-text {
  font-size: 0.85rem;
  font-weight: 500;
}

.demo-banner-btn {
  background-color: var(--accent);
  color: var(--neutral-light);
  padding: 0.4rem 1.1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(229, 9, 20, 0.3);
  transition: var(--transition-normal);
}

.demo-banner-btn:hover {
  background-color: var(--accent-hover);
  transform: scale(1.05);
}


/* ==========================================================================
   DEMO PAGE 1: E-COMMERCE (demo-ecommerce.html)
   ========================================================================== */
.eco-hero {
  padding-top: 140px;
  padding-bottom: 80px;
  background: radial-gradient(circle at 80% 20%, rgba(229, 9, 20, 0.04) 0%, transparent 60%), var(--neutral-light);
  border-bottom: 1px solid var(--border-light);
}

.eco-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
}

.eco-hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.eco-hero-desc {
  font-size: 1.1rem;
  color: var(--neutral-muted);
  margin-bottom: 2rem;
}

.eco-hero-img {
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  background-color: var(--border-light);
}

/* Product Catalog Layout */
.eco-catalog {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  align-items: start;
}

/* Sidebar Filters */
.eco-filters {
  background-color: var(--neutral-light);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 1.75rem;
}

.eco-filter-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.5rem;
}

.eco-filter-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.eco-filter-item label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--neutral-muted);
  cursor: pointer;
}

.eco-filter-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

/* Product Grid */
.eco-products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.eco-prod-card {
  background-color: var(--neutral-light);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.eco-prod-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 0, 0, 0.15);
}

.eco-prod-img-wrapper {
  position: relative;
  aspect-ratio: 1;
  background-color: var(--neutral-bg-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.eco-prod-img {
  width: 80%;
  height: 80%;
  object-fit: contain;
  transition: var(--transition-normal);
}

.eco-prod-card:hover .eco-prod-img {
  transform: scale(1.08);
}

.eco-prod-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: var(--primary);
  color: var(--neutral-light);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.eco-prod-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.eco-prod-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.eco-prod-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--neutral-muted);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.eco-prod-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.eco-prod-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
}

.eco-btn-cart {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--neutral-bg-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.eco-btn-cart:hover {
  background-color: var(--accent);
  color: var(--neutral-light);
}

.eco-btn-cart svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}


/* ==========================================================================
   DEMO PAGE 2: INSTITUTIONAL (demo-institucional.html)
   ========================================================================== */
.inst-hero {
  padding-top: 180px;
  padding-bottom: 100px;
  background: var(--inst-hero-bg);
  color: var(--inst-hero-text);
  text-align: center;
}

.inst-hero h1 {
  color: inherit;
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.inst-hero p {
  font-size: 1.2rem;
  color: inherit;
  opacity: 0.8;
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

/* Practice Areas Grid */
.inst-practice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.inst-practice-card {
  background-color: var(--neutral-light);
  border: 1px solid var(--border-light);
  padding: 2.5rem;
  border-radius: 6px;
  transition: var(--transition-normal);
}

.inst-practice-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.inst-practice-icon {
  width: 50px;
  height: 50px;
  border-radius: 4px;
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.inst-practice-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.inst-practice-card p {
  color: var(--neutral-muted);
  font-size: 0.9rem;
}

/* Trust / Stats Counter */
.inst-stats {
  background-color: var(--neutral-bg-light);
  color: var(--neutral-dark);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.inst-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.inst-stat-item h3 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.inst-stat-item p {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neutral-muted);
}


/* ==========================================================================
   DEMO PAGE 3: LANDING PAGE (demo-landing.html)
   ========================================================================== */
.land-hero {
  padding-top: 140px;
  padding-bottom: 100px;
  background-color: var(--neutral-bg-light);
  background-image: radial-gradient(rgba(229, 9, 20, 0.05) 1.5px, transparent 1.5px);
  background-size: 32px 32px;
}

.land-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 4rem;
}

.land-tag {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  background-color: rgba(229, 9, 20, 0.1);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.land-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.land-desc {
  font-size: 1.1rem;
  color: var(--neutral-muted);
  margin-bottom: 2rem;
}

/* Bullet Points */
.land-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.land-bullet-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  font-size: 0.95rem;
}

.land-bullet-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: rgba(229, 9, 20, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
}

/* Opt-In Form Card */
.land-form-card {
  background-color: var(--neutral-light);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.land-form-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.land-form-desc {
  font-size: 0.85rem;
  color: var(--neutral-muted);
  margin-bottom: 1.75rem;
}


/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes counterRotate {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes slideUpBanner {
  from { transform: translateX(-50%) translateY(100px); }
  to { transform: translateX(-50%) translateY(0); }
}


/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

/* Tablet Layout (1024px and down) */
@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }
  
  .hero-grid, .eco-hero-grid, .land-hero-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
    margin-bottom: 2rem;
  }
  
  .eco-catalog {
    grid-template-columns: 1fr;
  }
  
  .eco-hero-img {
    order: -1;
  }
  
  .inst-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

/* Mobile Devices (768px and down) */
@media (max-width: 768px) {
  .section-padding {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
  }
  
  .hero-title, .eco-hero-title, .land-title, .inst-hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 1.85rem;
  }
  
  /* Mobile Navigation Menu */
  .mobile-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--primary-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 6.5rem 2.5rem;
    gap: 2rem;
    transition: var(--transition-normal);
    box-shadow: -10px 0 30px rgba(0,0,0,0.25);
    z-index: 1050;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.1rem;
    color: var(--primary);
  }
  
  .nav-cta {
    display: none; /* Hide top CTA button in mobile, can put inside menu */
  }
  
  .mobile-nav-cta {
    margin-top: 1rem;
    width: 100%;
  }
  
  .mobile-nav-cta .btn {
    width: 100%;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .contact-form-wrapper {
    padding: 2rem;
  }
  
  /* Mobile Hamburger Animation */
  .mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    background-color: var(--primary) !important;
  }
  
  .mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -7px);
    background-color: var(--primary) !important;
  }
}

/* Small Screens (480px and down) */
@media (max-width: 480px) {
  .hero-title, .eco-hero-title, .land-title, .inst-hero h1 {
    font-size: 2.1rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .inst-stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   ADDED PREMIUM INTERACTIVE FEATURES (REFAC PHASE)
   ========================================================================== */

/* Nav Actions Container */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Theme Toggle Button */
.theme-toggle {
  background: transparent;
  border: none;
  color: var(--primary); /* Swap dynamically */
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition-normal);
  z-index: 1001;
}

.theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--accent);
}

/* Theme toggle in scrolled headers */
.header.scrolled .theme-toggle {
  color: rgba(255, 255, 255, 0.85);
}
.header.scrolled .theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.header.scrolled-light .theme-toggle {
  color: var(--primary);
}
.header.scrolled-light .theme-toggle:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--accent);
}

/* Toggle icon visibility based on theme setting */
.theme-toggle .sun-icon {
  display: none;
}
.theme-toggle .moon-icon {
  display: block;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  display: block;
}
[data-theme="dark"] .theme-toggle .moon-icon {
  display: none;
}

/* Scroll Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: opacity, transform;
}

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

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: opacity, transform;
}

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

.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; }

/* Infinite Marquee */
.marquee-section {
  background-color: var(--neutral-bg-light);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
  padding: 1.5rem 0;
  width: 100%;
}

.marquee-container {
  display: flex;
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-content {
  display: inline-flex;
  animation: marqueeLoop 25s linear infinite;
}

.marquee-content span {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--neutral-dark);
  padding-right: 3rem;
  display: flex;
  align-items: center;
}

[data-theme="dark"] .marquee-content span {
  color: var(--neutral-muted);
}

@keyframes marqueeLoop {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: #FFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  z-index: 999;
  transition: var(--transition-normal);
  animation: whatsappPulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background-color: #20BA5A;
}

.whatsapp-tooltip {
  position: absolute;
  right: 75px;
  background-color: #111827;
  color: #FFF;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background-color: #111827;
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
}

@keyframes whatsappPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}