/* Dark Mode Variables and Core System */

:root {
  --bg-color-light: #f6f5f5;
  --text-color-light: #191919;
  --nav-bg-light: #ffffff;
  --nav-text-light: #334155;
  --container-bg-light: #ffffff;
  --nav-hover-bg-light: rgba(0, 119, 255, 0.08);
  --nav-hover-text-light: #0077ff;
  --footer-bg-light: #ffffff;
  --footer-text-light: #191919;
  --box-shadow-light: rgba(0, 0, 0, 0.08);

  --bg-color-dark: #121212;
  --text-color-dark: #e0e0e0;
  --nav-bg-dark: #111418;
  --nav-text-dark: #e0e0e0;
  --container-bg-dark: #1e1e1e;
  --nav-hover-bg-dark: rgba(0, 210, 255, 0.12);
  --nav-hover-text-dark: #00d2ff;
  --footer-bg-dark: #111418;
  --footer-text-dark: #e0e0e0;
  --box-shadow-dark: rgba(0, 0, 0, 0.5);

  /* Default to light mode */
  --bg-color: var(--bg-color-light);
  --text-color: var(--text-color-light);
  --nav-bg: var(--nav-bg-light);
  --nav-text: var(--nav-text-light);
  --nav-hover-bg: var(--nav-hover-bg-light);
  --nav-hover-text: var(--nav-hover-text-light);
  --container-bg: var(--container-bg-light);
  --footer-bg: var(--footer-bg-light);
  --footer-text: var(--footer-text-light);
  --box-shadow: var(--box-shadow-light);
}

/* Dark mode class toggled by darkmode.js */
body.dark-mode {
  --bg-color: var(--bg-color-dark);
  --text-color: var(--text-color-dark);
  --nav-bg: var(--nav-bg-dark);
  --nav-text: var(--nav-text-dark);
  --nav-hover-bg: var(--nav-hover-bg-dark);
  --nav-hover-text: var(--nav-hover-text-dark);
  --container-bg: var(--container-bg-dark);
  --footer-bg: var(--footer-bg-dark);
  --footer-text: var(--footer-text-dark);
  --box-shadow: var(--box-shadow-dark);

  background-color: #000000 !important;
  color: var(--text-color);
  background-image: none !important;
}

/* ==========================================================================
   Dark Mode Toggle Button - Modern Premium Glassmorphic Styling
   ========================================================================== */

.dark-mode-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border: 1px solid rgba(99, 102, 241, 0.25);
  cursor: pointer;
  margin-left: 8px;
  color: #4f46e5 !important;
  font-size: 16px;
  line-height: 1;
  box-shadow: 0 3px 10px rgba(99, 102, 241, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  overflow: hidden;
  padding: 0;
  flex-shrink: 0;
  vertical-align: middle;
}

.dark-mode-toggle:hover {
  transform: translateY(-1px) scale(1.05);
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: #ffffff !important;
  border-color: transparent;
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.dark-mode-toggle i,
.dark-mode-toggle svg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 16px;
  line-height: 1;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dark-mode-toggle:hover i,
.dark-mode-toggle:hover svg {
  transform: rotate(15deg) scale(1.1);
}

body.dark-mode .dark-mode-toggle {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border: 1px solid rgba(251, 191, 36, 0.4);
  color: #fbbf24 !important;
  box-shadow: 0 0 12px rgba(251, 191, 36, 0.25);
}

body.dark-mode .dark-mode-toggle:hover {
  transform: translateY(-1px) scale(1.05);
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff !important;
  border-color: transparent;
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.5);
}

nav ul li:last-child,
nav ul li:has(.dark-mode-toggle) {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0;
}

nav ul li:has(.dark-mode-toggle):hover,
nav ul li:has(.dark-mode-toggle) a:hover {
  background-color: transparent !important;
  color: inherit;
}

/* Base Nav & Footer dark mode rules */
body.dark-mode nav {
  background-color: var(--nav-bg);
  border-bottom: 1px solid rgba(0, 210, 255, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

body.dark-mode .logo {
  color: #ffffff;
}

body.dark-mode nav ul li a {
  color: #e2e8f0;
}

body.dark-mode nav a:hover {
  color: #00d2ff !important;
  background-color: rgba(0, 210, 255, 0.12);
  border-radius: 8px;
}

body.dark-mode footer {
  background-color: var(--footer-bg);
  border-top: 1px solid rgba(0, 210, 255, 0.15);
  box-shadow: 2px 2px 12px var(--box-shadow);
}

body.dark-mode footer p {
  color: var(--footer-text);
}