:root {
    /* Default Theme: Purple-Black */
    --font-heading: 'Inter', 'sans-serif';
    --font-main: 'Inter', 'sans-serif';
    --color-brand: #9f5bff;
    --color-dark: #0a0a0f;
    --color-dark-accent: #1b0a2f;
    --color-glass-bg: rgba(15, 1, 32, 0.1);
    --color-glass-border: rgba(159, 91, 255, 0.15);
    --color-shadow: rgba(159, 91, 255, 0.1);
    --color-text-light: #e0e0e0;
    --color-text-dark: #a0a0a0;
    --color-glitch-1: #ff00c1;
    --color-glitch-2: #00fff9;
}

body {
    background-color: var(--color-dark);
    color: var(--color-text-light);
    font-family: var(--font-main);
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease, font-family 0.5s ease;
}

/* 3D Canvas */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: radial-gradient(ellipse at bottom, var(--color-dark-accent) 0%, var(--color-dark) 60%);
    transition: background 0.5s ease;
}

/* Noise Texture - Disabled for performance (can be re-enabled if needed) */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAATElEQVR42mNgoAY0Yf/RkxEMGBkYGBkYGFEIMrAYUREyMWYVrsDAwMHAwMIMTFAAMjAIsSgDiyIMsoZFiAWR1AwZGFgYGOAAADdTAyw+jRTaAAAAAElFTkSuQmCC');
    opacity: 0;
    pointer-events: none;
    z-index: 1;
}

@keyframes noise {
    /* Simplified animation */
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-1%, -1%); }
}

/* Glassmorphism Card */
.glass-card {
    background: var(--color-glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-glass-border);
    box-shadow: 0 8px 32px 0 var(--color-shadow);
    transition: background 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.glass-card p {
    text-align: left !important;
    text-indent: 0 !important;
    padding-left: 0 !important;
}

/* Glitch Text */
.glitch-text, h1, h2, h3 {
    font-family: var(--font-heading);
    transition: font-family 0.5s ease;
}

.glitch-text {
    position: relative;
    font-weight: 900;
    color: var(--color-text-light);
    text-shadow: 0 0 5px var(--color-brand), 0 0 10px var(--color-brand);
    transition: color 0.5s ease, text-shadow 0.5s ease;
}
.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-dark);
    overflow: hidden;
    transition: background-color 0.5s ease;
}
.glitch-text::before {
    left: 2px;
    text-shadow: -2px 0 var(--color-glitch-1);
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
    animation: glitch-top 1s linear infinite;
    transition: text-shadow 0.5s ease;
}
.glitch-text::after {
    left: -2px;
    text-shadow: 2px 0 var(--color-glitch-2);
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
    animation: glitch-bottom 1.5s linear infinite;
    transition: text-shadow 0.5s ease;
}

/* Staggered Text Reveal */
.reveal-char {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
    display: inline-block;
}

/* Cursor Trail - Optimized */
.cursor-trail {
    position: fixed;
    width: 8px;
    height: 8px;
    background: var(--color-brand);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    will-change: transform, opacity;
    transition: opacity 0.5s ease, background-color 0.5s ease;
    z-index: 9999;
    opacity: 0.8;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    background: var(--color-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--color-brand);
    border-radius: 10px;
    transition: background-color 0.5s ease;
}
::-webkit-scrollbar-thumb:hover {
    background: color-mix(in srgb, var(--color-brand) 80%, white);
}

/* Loader */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease-out, background-color 0.5s ease;
}
.loader-shape {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-brand);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
    transition: border-color 0.5s ease;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Theme Switcher Button */
#theme-switcher {
    position: fixed;
    bottom: 1.25rem;
    right: 1.25rem;
    z-index: 50;
    padding: 0.75rem;
    background: var(--color-glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 9999px;
    color: var(--color-brand);
    box-shadow: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -2px var(--color-shadow);
    transition: all 0.3s ease;
}
#theme-switcher:hover {
    background: var(--color-brand);
    color: var(--color-dark);
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--color-brand);
}

/* Transition Overlay */
#transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-dark);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease-in-out;
}

/* REMOVED dat.gui Custom Styling */

/* Editor Toggle Button */
#editor-toggle {
    position: fixed;
    bottom: 1.25rem;
    right: 5.25rem;
    z-index: 50;
    padding: 0.75rem;
    background: var(--color-glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 9999px;
    color: var(--color-text-light);
    box-shadow: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -2px var(--color-shadow);
    transition: all 0.3s ease;
}
#editor-toggle:hover {
    background: var(--color-brand);
    color: var(--color-dark);
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--color-brand);
}

/* Welcome Tooltip */
.welcome-tooltip {
    position: fixed;
    bottom: 6rem;
    right: 1.25rem;
    z-index: 100;
    width: 280px;
    background: var(--color-glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-glass-border);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 8px 32px var(--color-shadow);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.welcome-tooltip.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.tooltip-arrow {
    position: absolute;
    bottom: -8px;
    right: 3.5rem;
    width: 16px;
    height: 16px;
    background: var(--color-glass-bg);
    border-right: 1px solid var(--color-glass-border);
    border-bottom: 1px solid var(--color-glass-border);
    transform: rotate(45deg);
}

.close-tooltip-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.25rem;
    background: transparent;
    color: var(--color-text-dark);
    border-radius: 4px;
    transition: all 0.2s ease;
    z-index: 1;
}

.close-tooltip-btn:hover {
    background: var(--color-dark-accent);
    color: var(--color-text-light);
}

.tooltip-content {
    position: relative;
    z-index: 0;
}

.tooltip-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

.tooltip-text {
    font-size: 0.875rem;
    color: var(--color-text-dark);
    line-height: 1.5;
    margin: 0;
}

/* --- New Custom Editor Panel Styles --- */

/* Backdrop */
#editor-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 990;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    pointer-events: none;
}
#editor-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

/* Panel */
#theme-editor-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 90%;
    max-width: 380px;
    height: 100vh;
    z-index: 991;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* Apply glassmorphism */
    background: var(--color-glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-left: 1px solid var(--color-glass-border);
    box-shadow: -8px 0 32px 0 var(--color-shadow);

    display: flex;
    flex-direction: column;
    color: var(--color-text-light);
}
#theme-editor-panel.open {
    transform: translateX(0);
}

/* Panel Scrollbar */
#theme-editor-panel .overflow-y-auto::-webkit-scrollbar {
    width: 6px;
    background: transparent;
}
#theme-editor-panel .overflow-y-auto::-webkit-scrollbar-thumb {
    background: var(--color-brand);
    border-radius: 10px;
}

/* Custom Input: Range Slider */
.editor-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    background: var(--color-dark-accent);
    border-radius: 2px;
    outline: none;
    transition: background 0.3s ease;
}
.editor-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-brand);
    border: 2px solid var(--color-dark);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--color-shadow);
}
.editor-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-brand);
    border: 2px solid var(--color-dark);
    border-radius: 50%;
    cursor: pointer;
}

/* Custom Input: Color Picker */
.editor-color-picker {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 100%;
    height: 40px;
    border: 1px solid var(--color-glass-border);
    border-radius: 8px;
    cursor: pointer;
    background-color: transparent;
}
.editor-color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 8px;
}
.editor-color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 8px;
}
.editor-color-picker::-moz-color-swatch {
    border: none;
    border-radius: 8px;
}

/* Scene & Font Buttons */
.editor-choice-btn {
    background: var(--color-dark-accent);
    border: 1px solid var(--color-glass-border);
    transition: all 0.2s ease;
}
.editor-choice-btn:hover {
    border-color: var(--color-brand);
    background: var(--color-dark-accent);
    transform: translateY(-2px);
}
.editor-choice-btn.active {
    background: var(--color-brand);
    border-color: var(--color-brand);
    color: var(--color-dark);
}
.editor-choice-btn.active svg {
    color: var(--color-dark);
}

/* Section Styles */
.section-title {
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-text-light);
}

.section-bg {
    position: relative;
}

/* Reveal Text Animation */
.reveal-text {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Skill Tags */
.skill-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-dark-accent);
    border: 1px solid var(--color-glass-border);
    border-radius: 9999px;
    color: var(--color-text-light);
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--color-brand);
    color: var(--color-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

/* Navigation */
.nav-link {
    color: var(--color-text-light);
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
    text-decoration: none;
}

.nav-link:hover {
    color: var(--color-brand);
}

/* Social Icons */
.social-icon {
    color: var(--color-text-light);
    transition: all 0.3s ease;
    display: inline-block;
}

.social-icon:hover {
    color: var(--color-brand);
    transform: translateY(-3px);
}

/* Copy Button */
.copy-button {
    transition: all 0.3s ease;
}

.copy-button:hover {
    transform: scale(1.1);
}

/* Project Cards */
.project-card {
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-card-hover {
    transition: all 0.3s ease;
}

/* Horizontal Scrolling Projects */
.projects-scroll-container {
    position: relative;
    overflow: hidden;
    margin-top: 3rem;
}

.projects-scroll-wrapper {
    display: flex;
    gap: 2rem;
    overflow-x: scroll;
    overflow-y: hidden;
    scroll-behavior: auto;
    padding: 1rem 0;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    -webkit-overflow-scrolling: touch;
}

.projects-scroll-wrapper::-webkit-scrollbar {
    display: none; /* Chrome/Safari/Opera */
}

.project-card-horizontal {
    flex: 0 0 350px;
    min-width: 350px;
    height: 480px;
    transition: transform 0.3s ease;
}

.project-card-horizontal:hover {
    transform: translateY(-8px) scale(1.02);
}

.project-preview-container {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, var(--color-dark-accent) 0%, var(--color-dark) 100%);
    border-bottom: 1px solid var(--color-glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-preview-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-glass-border);
    border-top-color: var(--color-brand);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    opacity: 0.5;
}

.project-preview-container:has(iframe[src])::before {
    display: none;
}

.project-preview {
    width: 175%;
    height: 275%;
    border: none;
    transform: scale(0.57);
    transform-origin: top left;
    pointer-events: none;
    opacity: 0.85;
    transition: opacity 0.3s ease;
    position: absolute;
    top: 0;
    left: 0;
}

.project-card-horizontal:hover .project-preview {
    opacity: 1;
}

/* Scrolling Animation */
@keyframes scroll-horizontal {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.projects-scroll-wrapper.auto-scrolling {
    animation: scroll-horizontal 60s linear infinite;
}

.projects-scroll-wrapper.auto-scrolling:hover {
    animation-play-state: paused;
}