:root {
    --bg-color: #0d0d0d;
    --text-color: #f7f7f7;
    --accent-color: #9cd6ff;
    --font-family: 'Outfit', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    overflow: hidden;
    user-select: none;
    cursor: default;
}

/* Splash Loader */
#loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1);
}

#loader-wrapper.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loader-content {
    text-align: center;
}

.loader-logo-container {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader-logo {
    width: 60px;
    height: auto;
    z-index: 2;
    filter: drop-shadow(0 0 20px var(--accent-color));
    animation: breathingLogo 2s ease-in-out infinite;
}

.loader-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 1px solid var(--accent-color);
    border-radius: 50%;
    opacity: 0;
    z-index: 1;
    animation: pulseRing 2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes breathingLogo {
    0%, 100% { transform: scale(1); filter: brightness(1) drop-shadow(0 0 15px var(--accent-color)); }
    50% { transform: scale(1.15); filter: brightness(1.3) drop-shadow(0 0 25px var(--accent-color)); }
}

@keyframes pulseRing {
    0% { transform: scale(0.6); opacity: 0; }
    50% { opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 0; }
}

.loader-text {
    font-family: 'Space Grotesk', sans-serif;
    color: white;
    letter-spacing: 0.5rem;
    font-size: 0.75rem;
    font-weight: 300;
    opacity: 0.6;
    text-transform: uppercase;
}

#header-logo {
    position: fixed;
    top: 30px;
    right: 30px;
    z-index: 180;
    pointer-events: none;
    opacity: 0;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: fadeInTopRight 2s ease-out 4s forwards;
}

#header-logo img {
    height: 32px;
    width: auto;
    filter: drop-shadow(0 0 10px var(--accent-color));
}

.brand-name {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.35rem;
    color: white;
    text-transform: uppercase;
    text-shadow: 0 0 15px var(--accent-color);
    background: linear-gradient(to right, #fff, var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}


@keyframes fadeInTopRight {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 0.9; transform: translateY(0); }
}


#settings-hint {
    position: fixed;
    top: 40px;
    left: 90px;
    z-index: 190;
    pointer-events: none;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.75rem;
    color: white;
    letter-spacing: 0.5px;
    opacity: 0;
    animation: hintFloat 3s ease-in-out 7s infinite, fadeInHint 1s ease-out 7s forwards;
    white-space: nowrap;
    transition: opacity 0.5s ease;
}

#settings-hint.hidden {
    opacity: 0 !important;
    visibility: hidden;
}

#menu-toggle {
    position: fixed;
    top: 30px;
    left: 30px;
    z-index: 200;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#settings-hint::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes hintFloat {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(10px); }
}

@keyframes fadeInHint {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 0.8; transform: translateX(0); }
}



#menu-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(45deg) scale(1.1);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

#settings-panel {
    position: fixed;
    top: 90px;
    left: 30px;
    width: 280px;
    z-index: 150;
    background: rgba(20, 20, 20, 0.8);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 24px;
    color: white;
    transform: translateX(-400px);
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

#settings-panel.active {
    transform: translateX(0);
}

#settings-panel h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

#settings-panel p {
    font-size: 0.85rem;
    color: #999;
    margin-bottom: 20px;
}

.section-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #555;
    margin-top: 24px;
    margin-bottom: 12px;
}

.options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.options.themes {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.theme-btn {
    height: 36px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
    font-size: 0.7rem;
    color: #999;
    transition: all 0.2s ease;
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.theme-btn.active {
    background: rgba(0, 255, 255, 0.2);
    border: 1px solid rgba(0, 255, 255, 0.4);
    color: white;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.control-group label {
    font-size: 0.85rem;
    color: #ccc;
}

#metrics-hud {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 210;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    pointer-events: none;
    opacity: 0.5;
    font-family: monospace;
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.switch-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    cursor: pointer;
    font-size: 0.85rem;
    color: #ccc;
}

#magnet-toggle {
    cursor: pointer;
    width: 34px;
    height: 18px;
    background-color: #333;
    border-radius: 9px;
    position: relative;
    appearance: none;
    transition: all 0.3s;
}

#magnet-toggle:checked {
    background-color: var(--accent-color);
}

#magnet-toggle:before {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    background-color: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: all 0.3s;
}

#magnet-toggle:checked:before {
    left: 18px;
}



.option-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ccc;
    padding: 12px 16px;
    border-radius: 12px;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.option-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.option-btn.active {
    background: var(--accent-color);
    color: #000;
    font-weight: 600;
    border: none;
}

hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 20px 0;
}

.footer p {
    margin: 0;
    text-align: center;
    font-style: italic;
    opacity: 0.6;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 20%, rgba(0,0,0,0.8) 120%);
    pointer-events: none;
    z-index: 50;
}



#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    touch-action: none;
}

.content-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90vw;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 5s cubic-bezier(0.25, 1, 0.5, 1), transform 5s cubic-bezier(0.25, 1, 0.5, 1);
}

.content-overlay.visible {
    opacity: 1;
    transform: translate(-50%, -50%);
}

.content-overlay.hidden {
    opacity: 0 !important;
    transform: translate(-50%, -52%) !important;
    pointer-events: none;
}

h1 {
    font-size: 6rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5rem;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff, var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 15px rgba(255,255,255,0.1));
}

.subtitle {
    font-size: 1.6rem;
    font-weight: 300;
    margin-bottom: 2.5rem;
    color: #dfdfdf;
    letter-spacing: 0.15rem;
    font-style: italic;
    opacity: 0.8;
}

.instructions {
    font-size: 1rem;
    font-weight: 300;
    color: #888;
    letter-spacing: 0.3rem;
    text-transform: uppercase;
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    h1 { font-size: 4rem; }
    .subtitle { font-size: 1.2rem; }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.8rem;
        letter-spacing: 0.2rem;
        margin-bottom: 1rem;
    }
    .subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    .instructions {
        font-size: 0.8rem;
    }
    #settings-panel {
        width: calc(100% - 40px);
        left: 20px;
        top: 90px;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        padding: 20px;
        scrollbar-width: none; /* Firefox */
    }
    #settings-panel::-webkit-scrollbar {
        display: none; /* Chrome/Safari */
    }
    #settings-hint {
        display: none;
    }
    .brand-name {
        font-size: 0.9rem;
        letter-spacing: 0.2rem;
    }
    #metrics-hud {
        bottom: 20px;
        right: 20px;
        font-size: 0.6rem;
    }
}