/* 
  Invigo Landing Page Stylesheet
  Theme: Premium Glassmorphic Dark Mode
*/

:root {
  /* Color Palette - Default Light Theme (DOSSE Inspired) */
  --bg-color: #e5ecef;
  --bg-darker: #031118;
  --text-primary: #002736;
  --text-white: #eeeeee;
  --text-secondary: #4a5c66;
  --text-muted: #8fa0ab;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #17a2b8 0%, #095169 100%);
  --gradient-secondary: linear-gradient(135deg, #095169 0%, #002736 100%);
  --gradient-dark: linear-gradient(180deg, rgba(23, 162, 184, 0.04) 0%, rgba(255, 255, 255, 0.95) 100%);
  
  /* Accents */
  --accent-cyan: #17a2b8;
  --accent-purple: #095169;
  --accent-pink: #0088a8;
  --accent-amber: #f59e0b;
  --accent-indigo: #6366f1;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --panel-shadow-soft: 0 25px 50px -12px rgba(9, 81, 105, 0.06);
  /* Glassmorphism Variables - Light Mode */
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(9, 81, 105, 0.12);
  --glass-border-focus: rgba(23, 162, 184, 0.6);
  --glass-blur: blur(16px);
  --glass-shadow: 0 8px 32px 0 rgba(9, 81, 105, 0.08);
  
  --navbar-bg: rgba(246, 248, 249, 0.8);
  --panel-bg: rgba(255, 255, 255, 0.7);
  --panel-shadow: 0 15px 35px rgba(9, 81, 105, 0.08);
  --received-chat-bg: rgba(9, 81, 105, 0.06);
  --received-chat-border: rgba(9, 81, 105, 0.1);
  --card-sheen-color: rgba(9, 81, 105, 0.08);
  --orb-opacity: 0.14;

  /* Fonts */
  --font-family-body: 'Open Sans', sans-serif;
  --font-family-title: 'Libre Franklin', sans-serif;

  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
}

body.dark-theme {
  /* Color Palette - Dark Theme */
  --bg-color: #031118;
  --bg-darker: #01080d;
  --text-primary: #eeeeee;
  --text-secondary: #a2b0ba;
  --text-muted: #5e6f7a;
  
  /* Gradients */
  --gradient-dark: linear-gradient(180deg, rgba(9, 81, 105, 0.4) 0%, rgba(1, 8, 13, 0.8) 100%);
  
  /* Glassmorphism Variables - Dark Mode */
  --glass-bg: rgba(255, 255, 255, 0.02);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-border-focus: rgba(23, 162, 184, 0.4);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  
  --navbar-bg: rgba(3, 17, 24, 0.8);
  --panel-bg: rgba(1, 8, 13, 0.65);
  --panel-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  --received-chat-bg: rgba(255, 255, 255, 0.05);
  --received-chat-border: rgba(255, 255, 255, 0.05);
  --card-sheen-color: rgba(255, 255, 255, 0.1);
  --orb-opacity: 0.35;
  --panel-shadow-soft: 0 20px 40px rgba(0, 0, 0, 0.35);
  --accent-green: #10b981;
  --accent-red: #ef4444;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color 0.5s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

ul {
  list-style: none;
}

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

/* Background Decorative Orbs */
.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -2;
  opacity: var(--orb-opacity, 0.35);
  pointer-events: none;
  transition: opacity 0.5s ease;
}

.orb-1 {
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
  top: -10vw;
  right: -5vw;
  animation: float-orb-1 25s infinite alternate ease-in-out;
}

.orb-2 {
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
  top: 40vh;
  left: -15vw;
  animation: float-orb-2 32s infinite alternate ease-in-out;
}

.orb-3 {
  width: 35vw;
  height: 35vw;
  background: radial-gradient(circle, var(--accent-pink) 0%, transparent 70%);
  bottom: 5vh;
  right: 5vw;
  animation: float-orb-3 20s infinite alternate ease-in-out;
}

@keyframes float-orb-1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-3vw, 4vh) scale(1.1); }
  100% { transform: translate(2vw, -2vh) scale(0.95); }
}

@keyframes float-orb-2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(4vw, -5vh) scale(0.9); }
  100% { transform: translate(-2vw, 3vh) scale(1.05); }
}

@keyframes float-orb-3 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-2vw, -3vh) scale(1.08); }
  100% { transform: translate(3vw, 2vh) scale(0.92); }
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Glassmorphism Classes */
.frosted-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  border-radius: 12px;
  font-family: var(--font-family-title);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  border: none;
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
}

.btn.loading {
  pointer-events: none;
  opacity: 0.85;
}

.btn.loading::before {
  content: '';
  position: absolute;
  left: 1rem;
  top: 50%;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.15);
  border-top-color: rgba(0, 0, 0, 0.65);
  transform: translateY(-50%);
  animation: spin 0.85s linear infinite;
}

@keyframes spin {
  0% { transform: translateY(-50%) rotate(0deg); }
  100% { transform: translateY(-50%) rotate(360deg); }
}

.btn-primary {
  background: var(--gradient-primary);
  color: #000;
  box-shadow: 0 0 15px rgba(23, 162, 184, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(23, 162, 184, 0.6);
  color: #000;
}

.btn-secondary {
  color: var(--text-primary);
}

.glass-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: var(--glass-blur);
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Navigation Header */
.navbar-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  border-radius: 0;
  border-top: none;
  border-left: none;
  border-right: none;
  display: flex;
  align-items: center;
  background: var(--navbar-bg);
  transition: background-color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

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

.navbar-logo-container {
  display: flex;
  align-items: center;
}

.logo-pill {
  background: rgba(255, 255, 255, 0.95);
  padding: 0px 0px;
  border-radius: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.5s ease, border-color 0.5s ease, padding 0.5s ease;
}

.logo-pill:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 20px rgba(23, 162, 184, 0.4);
}

body:not(.dark-theme) .logo-pill {
  background: transparent;
  box-shadow: none;
  border-color: transparent;
  padding: 6px 0;
}

body:not(.dark-theme) .logo-pill:hover {
  transform: scale(1.03);
  box-shadow: none;
}

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

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  text-shadow: 0 0 10px rgba(23, 162, 184, 0.5);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.theme-toggle-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--glass-shadow);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--glass-border-focus);
  transform: scale(1.08) rotate(15deg);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(23, 162, 184, 0.3);
}

body:not(.dark-theme) .theme-toggle-btn:hover {
  background: rgba(9, 81, 105, 0.05);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

.theme-toggle-btn svg {
  transition: transform 0.5s ease, opacity 0.3s ease;
}

/* Toggle Sun/Moon visibility depending on theme */
body:not(.dark-theme) .sun-icon {
  display: none;
}

body:not(.dark-theme) .moon-icon {
  display: block;
}

body.dark-theme .sun-icon {
  display: block;
}

body.dark-theme .moon-icon {
  display: none;
}

.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-nav-toggle span {
  width: 25px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all 0.3s ease;
}