:root {
    --bg-body: #ffffff;
    --bg-overlay: rgba(255, 255, 255, 0.75);
    --text-primary: #171717;
    --text-secondary: #666666;
    --border-color: #e5e5e5;
    --hover-bg: #fafafa;
    --hover-border: #a3a3a3;
    --blur-amount: 2px;
}

[data-theme="dark"] {
    --bg-body: #000000;
    --bg-overlay: rgba(10, 10, 10, 0.75);
    --text-primary: #ededed;
    --text-secondary: #a0a0a0;
    --border-color: #262626;
    --hover-bg: #171717;
    --hover-border: #737373;
}

.spine-disabled {
    transition: background-color 0.4s ease;
}
[data-theme="light"].spine-disabled {
    --bg-overlay: #ffffff;
}
[data-theme="dark"].spine-disabled {
    --bg-overlay: #000000;
}
.spine-disabled #spine-player-container {
    opacity: 0 !important;
    visibility: hidden !important;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}
.spine-disabled #overlay {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-body);
}

#spine-player-container {
    position: fixed;
    z-index: 1;
    pointer-events: none;
    opacity: 1;
    visibility: visible;
}

.spine-player {
    width: 100% !important;
    height: 100% !important;
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
}

.spine-player-canvas {
    width: 100% !important;
    height: 100% !important;
}

.spine-player-controls, 
.spine-player-loading,
.spine-player-error {
    display: none !important;
}

.top-bar {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 520px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

#spine-loading-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
    user-select: none;
    transition: opacity 0.3s ease;
}

.top-bar-buttons {
    display: flex;
    gap: 8px;
    position: relative;
    margin-left: auto;
}

#theme-toggle, #menu-toggle {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

#theme-toggle:hover, #menu-toggle:hover {
    background-color: var(--hover-bg);
    border-color: var(--hover-border);
}

.dropdown-menu {
    position: absolute;
    top: 48px;
    right: 0;
    background-color: var(--bg-overlay);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    min-width: 180px;
    display: none;
    flex-direction: column;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    z-index: 100;
}

.dropdown-menu.show {
    display: flex;
}

.dropdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.dropdown-item-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: 0.25s ease;
    border-radius: 20px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: var(--bg-overlay);
    transition: 0.25s ease;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--text-primary);
}

input:checked + .slider:before {
    transform: translateX(16px);
}

#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2;
    background-color: var(--bg-overlay);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 96px 20px 60px 20px;
}

.container {
    width: 100%;
    max-width: 520px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
}

.avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background-color: var(--text-primary);
    color: var(--bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.name {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.05em;
    color: var(--text-primary);
}

.bio {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 420px;
}

.links-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.link-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    background-color: transparent;
}

.link-card:hover {
    background-color: var(--hover-bg);
    border-color: var(--hover-border);
}

.link-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.arrow {
    font-size: 1.1rem;
    color: var(--text-secondary);
    transform: translateX(0);
    transition: transform 0.2s ease, color 0.2s ease;
}

.link-card:hover .arrow {
    transform: translateX(4px);
    color: var(--text-primary);
}

.error-code {
    font-size: 6.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--text-primary);
    line-height: 1;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 12px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid var(--text-primary);
    background-color: var(--text-primary);
    color: var(--bg-overlay);
    cursor: pointer;
}

.back-btn:hover {
    opacity: 0.85;
}

.footer {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

[data-theme="dark"] .sun-icon { display: inline-block !important; }
[data-theme="dark"] .moon-icon { display: none !important; }
[data-theme="light"] .sun-icon { display: none !important; }
[data-theme="light"] .moon-icon { display: inline-block !important; }

svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}