:root {
    --primary-color: #007aff;
    --primary-light: rgba(0, 122, 255, 0.2);
    --glass-bg-light: rgba(255, 255, 255, 0.9);
    --glass-bg-dark: rgba(26, 26, 26, 0.9);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --glass-highlight: inset 0 0 10px rgba(255, 255, 255, 0.8);
    --glass-reflection: 0 0 15px rgba(0, 122, 255, 0.2);
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-light: #fff;
    --success-color: #34c759;
    --danger-color: #ff3b30;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
}

[data-theme="dark"] {
    --glass-bg-light: rgba(26, 26, 26, 0.9);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-primary: #fff;
    --text-secondary: #aaa;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #ffffff;
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
}

.background-animation {
    display: none;
}

@keyframes backgroundMove {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(2%, 2%) scale(1.02); }
    50% { transform: translate(-1%, 1%) scale(1.01); }
    75% { transform: translate(1%, -1%) scale(1.02); }
}

.glass-effect {
    background: var(--glass-bg-light);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--glass-shadow), var(--glass-reflection), var(--glass-highlight);
    transition: all var(--transition-normal);
}

.glass-effect:hover {
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.15),
        0 0 20px rgba(0, 122, 255, 0.3),
        inset 0 0 15px rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.glass-btn {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: none;
    border-radius: var(--border-radius-md);
    padding: 8px 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 15px rgba(0, 122, 255, 0.3);
}

.glass-btn:active {
    transform: scale(0.98);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.main-content {
    max-width: 1920px;
    margin: 0 auto;
    padding: 20px;
    padding-top: 80px;
}

@media (max-width: 768px) {
    .main-content {
        padding: 15px;
        padding-top: 70px;
    }
}

@media (max-width: 375px) {
    html {
        font-size: 14px;
    }
    
    .main-content {
        padding: 10px;
        padding-top: 60px;
    }
}

@keyframes glassShake {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.shake {
    animation: glassShake 0.1s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-down {
    animation: slideDown 0.3s ease forwards;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 122, 255, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 122, 255, 0.7);
}

::selection {
    background: rgba(0, 122, 255, 0.3);
    color: var(--text-primary);
}