:root {
    /* Lean Sans-Serif Typography */
    --font-family: 'Outfit', sans-serif;
    
    /* Transitions */
    --transition-speed: 0.4s;
    --transition-ease: cubic-bezier(0.25, 1, 0.5, 1);
}

/* Dark Mode (Default) */
html.dark-mode {
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.9);
    --bg-overlay: rgba(0, 0, 0, 0.65);
    --btn-bg: rgba(255, 255, 255, 0.08);
    --btn-border: rgba(255, 255, 255, 0.15);
    --btn-hover-bg: rgba(255, 255, 255, 0.15);
    --btn-text: #ffffff;
    --logo-color: #ffffff;
    --toggle-border: rgba(255, 255, 255, 0.3);
    --toggle-dot: #ffffff;
}

/* Light Mode */
html.light-mode {
    --text-primary: #111111;
    --text-secondary: #555555;
    --bg-overlay: rgba(255, 255, 255, 0.7);
    --btn-bg: rgba(0, 0, 0, 0.05);
    --btn-border: rgba(0, 0, 0, 0.1);
    --btn-hover-bg: rgba(0, 0, 0, 0.1);
    --btn-text: #111111;
    --logo-color: #111111;
    --toggle-border: rgba(0, 0, 0, 0.3);
    --toggle-dot: #111111;
}

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* Hide default cursor on desktop to use custom cursor */
    cursor: none !important; 
}

/* Mobile override for cursor */
@media (max-width: 768px) {
    * {
        cursor: auto !important;
    }
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    transition: color var(--transition-speed) var(--transition-ease);
}

/* Background Image */
.bg-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: url('./assets/background.jpg') center center/cover no-repeat;
    z-index: -2;
    transition: filter var(--transition-speed) ease;
}

/* Invert Background in Light Mode */
html.light-mode .bg-image {
    filter: invert(1);
}

html.light-mode .logo-icon {
    filter: invert(1) drop-shadow(0 4px 12px rgba(255, 255, 255, 0.2));
}

/* Overlay removed. Background handles it, shadows make text pop */

/* Center Content */
.content-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    width: 100%;
    padding: 2rem;
}

.center-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 800px;
}

/* Logo */
.logo-container {
    margin-bottom: 2rem;
}

.logo-icon {
    width: 80px;
    height: 80px;
    color: var(--logo-color);
    transition: color var(--transition-speed) var(--transition-ease);
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

/* Typography */
.hero-text {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 400; /* Adjusted for Outfit */
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 1rem;
    transition: color var(--transition-speed) var(--transition-ease);
    text-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.subtext {
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 500px;
    line-height: 1.5;
    margin-bottom: 2rem;
    transition: color var(--transition-speed) var(--transition-ease);
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Claim Input Box */
.claim-container {
    margin-bottom: 2rem;
    width: 100%;
    max-width: 320px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    border-radius: 999px;
    padding: 0.75rem 1.25rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color var(--transition-speed);
}

.input-wrapper:focus-within {
    border-color: rgba(255, 255, 255, 0.8);
}

html.light-mode .input-wrapper:focus-within {
    border-color: rgba(0, 0, 0, 0.5);
}

.at-symbol {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
    margin-right: 0.25rem;
}

.username-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1.1rem;
    font-weight: 400;
    width: 100%;
}

.username-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.status-indicator {
    width: 20px;
    height: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 0.5rem;
}

/* Spinner Animation */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.status-indicator.loading {
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

html.light-mode .status-indicator.loading {
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-top-color: #111;
}

.status-indicator.available svg {
    color: #4ade80; /* smooth green */
}

.status-indicator.taken svg {
    color: #f87171; /* smooth red */
}

/* CTA Button */
.cta-button {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--btn-bg);
    border: 1px solid var(--btn-border);
    color: var(--btn-text);
    padding: 1rem 2rem;
    border-radius: 999px;
    font-family: monospace;
    font-size: 1rem;
    letter-spacing: 0.05em;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    transition: all 0.3s var(--transition-ease);
    outline: none;
}

.cta-button:hover {
    background-color: var(--btn-hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.cta-button:active {
    transform: translateY(1px);
}

.copy-feedback {
    margin-top: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.copy-feedback.show {
    opacity: 1;
    transform: translateY(0);
}

/* Side Controls */
.side-controls {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 100;
}

/* Theme Toggle (Circle Dot at the side) */
.theme-toggle {
    position: relative;
    width: 24px;
    height: 48px;
    border: 1px solid var(--toggle-border);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 3px;
    transition: border-color var(--transition-speed) var(--transition-ease);
}

.theme-toggle .dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--toggle-dot);
    transition: all var(--transition-speed) var(--transition-ease);
}

html.light-mode .theme-toggle .dot {
    transform: translateY(24px); /* Move dot down for light mode */
}

/* Audio Toggle */
.audio-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--toggle-dot);
    opacity: 0.7;
    transition: all 0.2s ease;
}

.audio-toggle:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* Custom Cursor */
#custom-cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 20px;
    height: 20px;
    background-color: #ffffff;
    mix-blend-mode: difference;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s;
}

/* Enlarge cursor slightly when hovering interactable elements */
body.hovering #custom-cursor {
    width: 30px;
    height: 30px;
}

@media (max-width: 768px) {
    #custom-cursor {
        display: none; /* Hide custom cursor on mobile touch devices */
    }
    .side-controls {
        right: 15px;
        top: 20px;
        transform: translateY(0);
        flex-direction: row;
        align-items: center;
        gap: 15px;
    }
    .theme-toggle {
        width: 48px;
        height: 24px;
        align-items: center;
        justify-content: flex-start;
    }
    .theme-toggle .dot {
        transform: translateX(0) translateY(0);
    }
    html.light-mode .theme-toggle .dot {
        transform: translateX(24px) translateY(0);
    }
}