/* --- Default Light Theme Variables --- */
:root {
  --optomo-dark: #181D23;
  --optomo-slate: #5A6472;
  --optomo-muted: #808A96;
  --optomo-light: #E2E7ED;
  --optomo-bg: #F8F9FA;
  
  /* Theme Specific Mappings */
  --bg-main: var(--optomo-bg);
  --text-main: #1E232A;
  --card-bg: #FFFFFF;
  --card-border: #E2E7ED;
  --header-bg: #FFFFFF;
  --header-border: #DEE2E6;
  --nav-link-color: #212529;
}

/* --- Dark Theme Variable Overrides --- */
[data-theme="dark"] {
  --bg-main: #0F1216;
  --text-main: #E2E7ED;
  --card-bg: #181D23;
  --card-border: #2C3440;
  --header-bg: #181D23;
  --header-border: #2C3440;
  --nav-link-color: #E2E7ED;
}

/* Standard HTML/Body Elements */
html, body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-main) !important;
  color: var(--text-main) !important;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header & Card Adaptations */
header {
  background-color: var(--header-bg) !important;
  border-color: var(--header-border) !important;
  transition: background-color 0.3s ease;
}

.nav-link {
  color: var(--nav-link-color) !important;
  transition: color 0.2s ease, background-color 0.2s ease;
}

/* Hover state */
.nav-link:hover {
  color: var(--optomo-slate) !important;
}

/* -------------------------------------------------- */
/* ACTIVE NAV LINK (Light Mode)                       */
/* Darker & higher contrast against white/light bg    */
/* -------------------------------------------------- */
.nav-link.active {
  color: var(--optomo-dark) !important;
  background-color: var(--optomo-light); /* Soft light gray pill background */
  border-radius: 6px;
}

/* -------------------------------------------------- */
/* ACTIVE NAV LINK (Dark Mode)                        */
/* Crisp & slightly lighter against dark bg           */
/* -------------------------------------------------- */
[data-theme="dark"] .nav-link.active {
  color: #FFFFFF !important; /* Pure crisp white (lighter than --nav-link-color #E2E7ED) */
}


[data-theme="dark"] .nav-link.active {
  color: #FFFFFF !important;
  background-color: var(--card-border); /* Subtle slate background highlight */
  border-radius: 6px;
}

.card, .media-card {
  background-color: var(--card-bg) !important;
  border-color: var(--card-border) !important;
  color: var(--text-main) !important;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Dynamic Text Color Overrides */
.text-optomo-dark {
  color: var(--text-main) !important;
}

.text-optomo-slate {
  color: var(--optomo-muted) !important;
}

/* Dark Mode Switcher Button Styling */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--optomo-slate);
  color: var(--text-main);
  border-radius: 50rem;
  padding: 4px 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  background-color: var(--optomo-light);
  color: var(--optomo-dark);
}

main {
  flex: 1 0 auto;
}

footer {
  flex-shrink: 0;
  margin-top: auto;
}

/* Scaling and Container Optimization for Ultra-wide / 16:10 Displays (2560x1600) */
@media (min-width: 1400px) {

  .container,
  .container-lg,
  .container-md,
  .container-sm,
  .container-xl,
  .container-xxl {
    max-width: 1440px;
  }
}

@media (min-width: 1920px) {

  .container,
  .container-lg,
  .container-md,
  .container-sm,
  .container-xl,
  .container-xxl {
    max-width: 1720px;
  }

  html {
    font-size: 17px;
    /* Enhances scaling and proportions on 2560x1600 / QHD / 4K monitors */
  }
}

/* Color & Button Utilities */
.bg-optomo-dark {
  background-color: var(--optomo-dark) !important;
}

.bg-optomo-light {
  background-color: var(--optomo-light) !important;
}

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

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

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

.btn-optomo-dark {
  background-color: var(--optomo-dark);
  color: #ffffff;
  border: 1px solid var(--optomo-dark);
}

.btn-optomo-dark:hover {
  background-color: #2C3440;
  color: #ffffff;
}

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

.btn-optomo-outline:hover {
  background-color: var(--optomo-light);
  color: var(--optomo-dark);
}

.btn-optomo-tag {
  background-color: var(--optomo-light);
  color: var(--optomo-dark);
  border: 1px solid #CED5DF;
  font-weight: 600;
}

.btn-optomo-tag:hover {
  background-color: var(--optomo-slate);
  color: #ffffff;
}

/* --- Taller Single-Slogan Hero Banner with Pixel Canvas --- */
.slogan-hero-wrapper {
  transition: opacity 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: opacity;
}

.slogan-hero-banner {
  position: relative;
  background-color: var(--optomo-dark);
  color: #ffffff;
  padding: 5rem 1rem;
  border-bottom: 1px solid #2C3440;
  overflow: hidden;
  /* Keeps bouncing pixels contained inside the banner */
}

/* Background Pixel Canvas */
#pixelCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Glassmorphism Slogan Card Layered Above Canvas */
.slogan-hero-banner .container {
  position: relative;
  z-index: 2;
}

.slogan-card-single {
  background: rgba(116, 111, 111, 0);
  /* Semi-transparent dark background */
  backdrop-filter: blur(8px);
  /* Soft blur effect so voxels pass smoothly behind it */
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* Dynamic responsive typography adjusting for mobile */
@media (max-width: 768px) {
  .slogan-hero-banner {
    padding: 3rem 1rem;
  }

  .slogan-card-single {
    padding: 1.5rem 1rem;
    min-height: auto;
  }
}

/* Carousel Container & Layout */
.carousel-section {
  max-width: 800px;
  /* Optional: Constrain overall section width */
  margin: 0 auto 2.5rem auto;
}

.carousel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.carousel-controls {
  display: flex;
  gap: 0.5rem;
}

.nav-btn {
  background-color: var(--card-bg, #ffffff);
  color: var(--text-main, #212529);
  border: 1px solid var(--header-border, #dee2e6);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

/* Perfect alignment for text arrows */
.nav-btn span {
  display: block;
  line-height: 1;
  font-size: 1.5rem;
  transform: translateY(-2px); /* Precise pixel adjustment */
}

/* Light Mode Hover State (Gray Tone) */
.nav-btn:hover {
  background-color: var(--optomo-light, #E2E7ED);
  color: var(--optomo-dark, #181D23);
  border-color: var(--optomo-slate, #5A6472);
}

/* --- Dark Mode Controls --- */
[data-theme="dark"] .nav-btn {
  background-color: #2b3035;
  color: #f8f9fa; /* Ensures arrows are crisp white against the dark button */
  border-color: #495057;
}

/* Dark Mode Hover State (Darker Slate/Gray Tone) */
[data-theme="dark"] .nav-btn:hover {
  background-color: #3a4149;
  color: #ffffff;
  border-color: var(--optomo-slate, #5A6472);
}

/* Track container - hides scrollbar for cleaner single-slide feel */
.carousel-track-container {
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  /* Firefox */
}

.carousel-track-container::-webkit-scrollbar {
  display: none;
  /* Chrome, Safari, Edge */
}

.carousel-track {
  display: flex;
  width: 100%;
}

/* Language Selection Toggle Switch */
.lang-switch {
  display: inline-flex;
  align-items: center;
  background-color: var(--optomo-light);
  border: 1px solid #CED5DF;
  border-radius: 50rem;
  padding: 2px;
}

.lang-toggle-btn {
  border: none;
  background: transparent;
  color: var(--optomo-slate);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 50rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-decoration: none;
  line-height: 1.2;
}

.lang-toggle-btn.active {
  background-color: var(--optomo-dark);
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.lang-toggle-btn:hover:not(.active) {
  color: var(--optomo-dark);
}

/* Single Item View: Takes 100% width */
.media-card {
  flex: 0 0 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  background: #ffffff;
  box-sizing: border-box;
}

.media-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #000;
}

.media-wrapper img,
.media-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
}

.card-content {
  padding: 1.25rem;
}

.card-content h3 {
  margin: 0 0 0.4rem 0;
  font-size: 1.1rem;
}

.card-content p {
  margin: 0;
  color: #555;
  font-size: 0.9rem;
}

/* Dark Theme Feature Cards */
.app-feature-card {
  background-color: #020202 !important;
  /* Elegant dark slate background */
  border: 1px solid #30363d !important;
  /* Subtle border for structure */
  color: #f0f6fc;
}

/* Specific text color overrides inside dark cards */
.app-feature-card h3 {
  color: #ffffff !important;
}

.app-feature-card .text-card-bullet {
  color: #bdc5cd !important;
  /* Clean accent color for bullet points */
}

.app-feature-card .text-card-body {
  color: #c9d1d9 !important;
  /* High-contrast readable text */
}

.app-feature-card .text-card-lead {
  color: #e6edf3 !important;
}

/* Card Hover Elevation Effect */
.card {
  transition: transform 0.25s ease-in-out, box-shadow 0.25s ease-in-out, border-color 0.25s ease-in-out;
}

.card:hover {
  transform: translateY(-5px);
  /* Smoothly lifts the card upward */
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.35) !important;
  /* Enhanced shadow depth */
}

/* Optional: Slight border highlight on dark cards during hover */
.app-feature-card:hover {
  border-color: #58a6ff !important;
}

/* --- Global Bootstrap Overrides for Theme Switch --- */

/* Force navbar and light backgrounds to adopt dark mode */
[data-theme="dark"] .bg-white,
[data-theme="dark"] .bg-light,
[data-theme="dark"] .bg-body-tertiary {
  background-color: var(--card-bg) !important;
}

/* Ensure section borders blend smoothly */
[data-theme="dark"] .border-top,
[data-theme="dark"] .border-bottom,
[data-theme="dark"] .border {
  border-color: var(--card-border) !important;
}

/* Fix Navbar dark mode colors */
[data-theme="dark"] .navbar {
  background-color: var(--header-bg) !important;
  border-color: var(--header-border) !important;
}

[data-theme="dark"] .navbar-brand,
[data-theme="dark"] .nav-link {
  color: var(--text-main) !important;
}

[data-theme="dark"] .nav-link:hover {
  color: var(--optomo-muted) !important;
}

/* Invert card headings, subtext, and body content in Dark Mode */
[data-theme="dark"] .card-title,
[data-theme="dark"] .card-heading,
[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4, 
[data-theme="dark"] h5, 
[data-theme="dark"] h6 {
  color: #FFFFFF !important;
}

[data-theme="dark"] .card-text,
[data-theme="dark"] .card p,
[data-theme="dark"] .text-dark,
[data-theme="dark"] .text-body-secondary,
[data-theme="dark"] .text-secondary {
  color: var(--optomo-light) !important;
}

[data-theme="dark"] .text-muted {
  color: var(--optomo-muted) !important;
}

/* --- Fix Titles inside rounded cards --- */
[data-theme="dark"] .card.rounded-4 *,
[data-theme="dark"] .card.rounded-4 h1,
[data-theme="dark"] .card.rounded-4 h2,
[data-theme="dark"] .card.rounded-4 h3,
[data-theme="dark"] .card.rounded-4 h4,
[data-theme="dark"] .card.rounded-4 h5,
[data-theme="dark"] .card.rounded-4 h6 {
  color: #FFFFFF !important;
}

/* --- Fix Custom Outline Button in Dark Mode --- */
[data-theme="dark"] .btn-optomo-outline {
  color: var(--optomo-light) !important;
  border-color: var(--optomo-slate) !important;
  background-color: transparent !important;
}

[data-theme="dark"] .btn-optomo-outline:hover {
  color: #FFFFFF !important;
  background-color: var(--optomo-slate) !important;
  border-color: var(--optomo-slate) !important;
}

/* Catch any nested links or spans inside card headers/titles */
[data-theme="dark"] .card.rounded-4 a,
[data-theme="dark"] .card.rounded-4 span {
  color: var(--text-main) !important;
}

/* --- Fix Optomo Tag Button in Dark Mode --- */
[data-theme="dark"] .btn-optomo-tag {
  background-color: var(--card-bg) !important;
  color: var(--optomo-light) !important;
  border-color: var(--card-border) !important;
}

[data-theme="dark"] .btn-optomo-tag:hover {
  background-color: var(--header-border) !important;
  color: #FFFFFF !important;
}

/* Ensure icons/svgs inside the tag button also adopt light color */
[data-theme="dark"] .btn-optomo-tag i,
[data-theme="dark"] .btn-optomo-tag svg {
  color: var(--optomo-light) !important;
  fill: var(--optomo-light) !important;
}

/* Dark Mode Overrides for Specific Text Classes */
[data-bs-theme="dark"] .text-optomo-dark,
body.dark-mode .text-optomo-dark {
  color: #f1f5f9 !important; /* Lighter slate white */
}

[data-bs-theme="dark"] .text-optomo-slate,
body.dark-mode .text-optomo-slate {
  color: #cbd5e1 !important; /* Soft light gray/slate */
}

/* ========================================== */
/* THEME TOGGLE BUTTON                        */
/* ========================================== */
/* ========================================== */
/* THEME TOGGLE BUTTON                        */
/* ========================================== */

#themeToggleBtn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--card-border, #e3e6ed);
  background-color: var(--card-bg, #f8f9fa);
  color: var(--text-main, #212529);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

/* Light Mode Hover: Clean Neutral Gray */
#themeToggleBtn:hover {
  background-color: var(--optomo-light, #E2E7ED);
  color: var(--optomo-dark, #181D23);
  border-color: var(--optomo-slate, #5A6472);
  transform: translateY(-1px);
}

#themeToggleBtn:active {
  transform: translateY(0);
}

/* Icon Animations */
#themeToggleBtn .theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, opacity 0.2s ease;
}

#themeToggleBtn:hover .theme-icon {
  transform: rotate(15deg);
}

/* Dark Mode Base & Hover: Dark Slate/Gray Overlay */
[data-theme="dark"] #themeToggleBtn {
  background-color: #242A32;
  border-color: var(--card-border, #2C3440);
  color: var(--text-main, #E2E7ED);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] #themeToggleBtn:hover {
  background-color: var(--optomo-slate, #5A6472);
  border-color: var(--optomo-muted, #808A96);
  color: #FFFFFF;
}