/* =============================================================================
   ENHANCED THEME SYSTEM - Dark/Light Mode with Smooth Transitions
   ============================================================================= */

/* Smooth theme transition for all color-based properties */
body {
    transition: background-color 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Enhanced theme toggle button */
.theme-toggle {
    position: relative;
    background: linear-gradient(135deg, rgba(0, 230, 168, 0.1), rgba(124, 92, 255, 0.1));
    border: 2px solid rgba(0, 230, 168, 0.3);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 230, 168, 0.2);
}

.theme-toggle::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 230, 168, 0.2), rgba(124, 92, 255, 0.2));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 6px 25px rgba(0, 230, 168, 0.4);
    border-color: rgba(0, 230, 168, 0.6);
}

.theme-toggle:hover::before {
    opacity: 1;
}

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

/* Spin animation when clicked */
.theme-toggle.spinning {
    animation: theme-spin 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes theme-spin {
    0% {
        transform: rotate(0deg) scale(1);
        border-radius: 50%;
    }
    50% {
        transform: rotate(180deg) scale(1.3);
        border-radius: 20%;
    }
    100% {
        transform: rotate(360deg) scale(1);
        border-radius: 50%;
    }
}

.theme-toggle:hover::before {
    opacity: 1;
}

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

/* Light theme styles */
body.light-theme {
    background: linear-gradient(135deg, #f0f4f8 0%, #e8ecf1 50%, #dfe3e8 100%);
    color: #1a202c;
}

/* Light theme - Header */
body.light-theme .site-header {
    background: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0, 230, 168, 0.2);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

body.light-theme .main-nav a {
    color: #2d3748;
}

body.light-theme .main-nav a:hover,
body.light-theme .main-nav a.active {
    color: #00b894;
}

/* Light theme - Cards */
body.light-theme .card,
body.light-theme .project-card,
body.light-theme .contact-card,
body.light-theme .stat-card {
    background: rgba(255, 255, 255, 0.9) !important;
    border: 1px solid rgba(0, 230, 168, 0.2) !important;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

body.light-theme .card:hover,
body.light-theme .project-card:hover,
body.light-theme .contact-card:hover,
body.light-theme .stat-card:hover {
    box-shadow: 0 12px 40px rgba(0, 230, 168, 0.15);
    border-color: rgba(0, 230, 168, 0.4) !important;
}

/* Light theme - Text */
body.light-theme h1,
body.light-theme h2,
body.light-theme h3,
body.light-theme h4,
body.light-theme h5,
body.light-theme h6 {
    color: #1a202c !important;
}

body.light-theme p,
body.light-theme li,
body.light-theme span {
    color: #2d3748 !important;
}

body.light-theme .section-lead {
    color: #4a5568 !important;
}

/* Light theme - Buttons */
body.light-theme .btn {
    background: linear-gradient(135deg, #00b894, #00cec9);
    color: #ffffff !important;
    border-color: #00b894;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
}

body.light-theme .btn:hover {
    background: linear-gradient(135deg, #00cec9, #00b894);
    box-shadow: 0 6px 25px rgba(0, 184, 148, 0.4);
    transform: translateY(-2px);
}

body.light-theme .btn.ghost {
    background: transparent;
    color: #00b894 !important;
    border: 2px solid #00b894;
}

body.light-theme .btn.ghost:hover {
    background: rgba(0, 184, 148, 0.1);
    border-color: #00cec9;
}

/* Light theme - Forms */
body.light-theme input,
body.light-theme textarea,
body.light-theme select {
    background: rgba(255, 255, 255, 0.95) !important;
    color: #1a202c !important;
    border: 2px solid rgba(0, 230, 168, 0.3) !important;
}

body.light-theme input:focus,
body.light-theme textarea:focus,
body.light-theme select:focus {
    border-color: rgba(0, 184, 148, 0.6) !important;
    box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.1);
}

body.light-theme input::placeholder,
body.light-theme textarea::placeholder {
    color: #718096 !important;
    opacity: 0.8 !important;
}

/* Light theme - Background animation */
body.light-theme .background-animation {
    opacity: 0.3 !important;
    mix-blend-mode: multiply;
}

/* Light theme - Scrollbar */
body.light-theme html.scrolling {
    scrollbar-color: rgba(0, 184, 148, 1) rgba(240, 244, 248, 0.8);
}

body.light-theme html.scrolling::-webkit-scrollbar-track {
    background: linear-gradient(90deg,
        rgba(240, 244, 248, 0.9) 0%,
        rgba(232, 236, 241, 0.95) 50%,
        rgba(240, 244, 248, 0.9) 100%);
    border: 1px solid rgba(0, 184, 148, 0.2);
}

body.light-theme html.scrolling::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, 
        rgba(0, 206, 201, 1) 0%,
        rgba(0, 184, 148, 1) 50%, 
        rgba(0, 168, 132, 1) 100%);
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 
        0 0 15px rgba(0, 184, 148, 0.6),
        0 0 30px rgba(0, 206, 201, 0.4),
        inset 0 0 8px rgba(255, 255, 255, 0.4);
}

/* Light theme - Progress indicator */
body.light-theme .scrollbar-progress-indicator {
    background: rgba(255, 255, 255, 0.98) !important;
    color: #00b894 !important;
    border: 1px solid rgba(0, 184, 148, 0.3) !important;
    box-shadow:
        0 8px 25px rgba(0, 0, 0, 0.1),
        0 4px 12px rgba(0, 184, 148, 0.15) !important;
}

body.light-theme .progress-percentage {
    color: #00b894 !important;
    text-shadow: 0 0 8px rgba(0, 184, 148, 0.4) !important;
}

body.light-theme .progress-remaining {
    color: rgba(0, 184, 148, 0.7) !important;
}

/* Light theme - Skills */
body.light-theme .skill-bar {
    background: rgba(0, 0, 0, 0.05);
}

body.light-theme .skill-progress {
    background: linear-gradient(90deg, #00b894, #00cec9);
    box-shadow: 0 2px 8px rgba(0, 184, 148, 0.3);
}

/* Light theme - Timeline */
body.light-theme .timeline-item {
    background: rgba(255, 255, 255, 0.9) !important;
    border-left: 3px solid #00b894;
}

body.light-theme .timeline-item::before {
    background: #00b894;
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 1), 0 0 0 8px rgba(0, 184, 148, 0.2);
}

/* Light theme - Links */
body.light-theme a {
    color: #00b894;
}

body.light-theme a:hover {
    color: #00cec9;
}

/* Light theme - Email link visibility */
body.light-theme .email-container a,
body.light-theme #emailLink {
    color: #00b894 !important;
    font-weight: 600 !important;
    text-decoration: underline !important;
}

body.light-theme .email-container a:hover,
body.light-theme #emailLink:hover {
    color: #00cec9 !important;
}

/* Light theme - Code blocks */
body.light-theme code,
body.light-theme pre {
    background: rgba(0, 0, 0, 0.05);
    color: #00b894;
    border: 1px solid rgba(0, 184, 148, 0.2);
}

/* Light theme - Shadows and glows - reduce intensity */
body.light-theme .card::before,
body.light-theme .project-card::before,
body.light-theme .stat-card::before {
    opacity: 0.2 !important;
}

/* Light theme - Hero section */
body.light-theme .hero {
    background: linear-gradient(135deg, rgba(240, 244, 248, 0.5) 0%, rgba(232, 236, 241, 0.5) 100%);
}

body.light-theme .tagline {
    color: #1a202c !important;
    opacity: 1 !important;
    filter: none !important;
}

body.light-theme .lead {
    color: #2d3748 !important;
    opacity: 1 !important;
    filter: none !important;
}

/* Light theme - Ensure all text elements are fully visible */
body.light-theme h1,
body.light-theme h2,
body.light-theme h3,
body.light-theme h4,
body.light-theme h5,
body.light-theme h6,
body.light-theme p,
body.light-theme li,
body.light-theme span,
body.light-theme div,
body.light-theme label {
    opacity: 1 !important;
    filter: none !important;
    text-shadow: none !important;
}

/* Light theme - CV and Experience sections */
body.light-theme .cv-summary,
body.light-theme .cv-details,
body.light-theme .timeline-item {
    background: rgba(255, 255, 255, 0.95) !important;
    opacity: 1 !important;
    backdrop-filter: blur(10px) !important;
}

body.light-theme .cv-summary *,
body.light-theme .cv-details *,
body.light-theme .timeline-item * {
    opacity: 1 !important;
    filter: none !important;
    color: #2d3748 !important;
}

body.light-theme .cv-summary h3,
body.light-theme .cv-summary h4,
body.light-theme .cv-details h3,
body.light-theme .cv-details h4 {
    color: #1a202c !important;
}

body.light-theme .cv-summary::before,
body.light-theme .cv-details::before {
    opacity: 0.3 !important;
}

/* Light theme - Stats and Live Stats */
body.light-theme .stat-card,
body.light-theme .stat-item,
body.light-theme .activity-item,
body.light-theme .news-item {
    background: rgba(255, 255, 255, 0.95) !important;
    opacity: 1 !important;
}

body.light-theme .stat-card *,
body.light-theme .stat-item *,
body.light-theme .activity-item *,
body.light-theme .news-item * {
    opacity: 1 !important;
    filter: none !important;
}

body.light-theme .stat-value,
body.light-theme .stat-number {
    color: #1a202c !important;
    opacity: 1 !important;
}

body.light-theme .stat-label,
body.light-theme .stat-description {
    color: #2d3748 !important;
    opacity: 1 !important;
}

/* Light theme - Remove all blur filters from content */
body.light-theme section::before,
body.light-theme section::after {
    opacity: 0.1 !important;
    filter: none !important;
}

/* Light theme - Project cards and achievement items */
body.light-theme .project-card *,
body.light-theme .achievement-item *,
body.light-theme .contact-card * {
    opacity: 1 !important;
    filter: none !important;
}

/* Light theme - Achievement items specific fixes */
body.light-theme .achievement-item {
    background: rgba(255, 255, 255, 0.95) !important;
}

body.light-theme .achievement-item h3,
body.light-theme .achievement-item h4 {
    color: #1a202c !important;
    opacity: 1 !important;
}

body.light-theme .achievement-item p,
body.light-theme .achievement-item li,
body.light-theme .achievement-item span {
    color: #2d3748 !important;
    opacity: 1 !important;
}

/* Light theme - Mobile toggle button */
body.light-theme .mobile-toggle {
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.15), rgba(0, 206, 201, 0.1));
    border: 2px solid rgba(0, 184, 148, 0.5);
    color: #00b894;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.2);
}

body.light-theme .mobile-toggle:hover {
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.25), rgba(0, 206, 201, 0.2));
    box-shadow: 0 6px 20px rgba(0, 184, 148, 0.3);
}

/* Light theme - Mobile navigation menu dropdown */
body.light-theme .main-nav {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 250, 255, 0.98)) !important;
    border-bottom: 2px solid rgba(0, 184, 148, 0.3) !important;
    box-shadow: 0 10px 40px rgba(0, 184, 148, 0.2) !important;
}

body.light-theme .main-nav a {
    background: rgba(0, 184, 148, 0.05) !important;
    border: 1px solid rgba(0, 184, 148, 0.15) !important;
    color: #2d3748 !important;
}

body.light-theme .main-nav a:hover,
body.light-theme .main-nav a:focus {
    background: rgba(0, 184, 148, 0.15) !important;
    border-color: rgba(0, 184, 148, 0.4) !important;
    color: #00b894 !important;
}

/* Light theme - Portrait */
body.light-theme .portrait-frame {
    border: 3px solid rgba(0, 184, 148, 0.3);
    box-shadow: 0 8px 30px rgba(0, 184, 148, 0.15);
}

body.light-theme .portrait-frame::before {
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.1), rgba(0, 206, 201, 0.1));
}

/* Light theme - Email copy feedback */
body.light-theme .copy-feedback {
    background: #00b894 !important;
    color: #ffffff !important;
    box-shadow: 0 4px 20px rgba(0, 184, 148, 0.4) !important;
    opacity: 0 !important;
}

body.light-theme .copy-feedback.show {
    opacity: 1 !important;
}

body.light-theme .email-container {
    position: relative;
}

body.light-theme .copy-email-btn {
    background: rgba(0, 184, 148, 0.1) !important;
    border-color: rgba(0, 184, 148, 0.3) !important;
}

body.light-theme .copy-email-btn:hover {
    background: rgba(0, 184, 148, 0.2) !important;
    border-color: rgba(0, 184, 148, 0.5) !important;
}

/* Mobile optimizations for theme toggle */
@media (max-width: 768px) {
    .theme-toggle {
        width: 44px;
        height: 44px;
        font-size: 1.3rem;
    }
    
    body.light-theme .background-animation {
        opacity: 0.2 !important;
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    body,
    * {
        transition: none !important;
    }
    
    .theme-toggle {
        transition: none !important;
    }
}