/* Base Styles & Variables */
:root {
    /* Light Theme (Default) */
    --bg: #f5f7fb;
    --text: #0f172a;
    --text-muted: #475569;
    --accent: #e11d48;
    --accent-hover: #be123c;
    --card-bg: #ffffff;
    --border: #eef2f6;
    --overlay-bg: rgba(255, 255, 255, 0.98);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    --radius: 20px;
    --nav-bg: rgba(255, 255, 255, 0.85);
    --glass-bg: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.25);
}

[data-theme="dark"] {
    --bg: #0b0f1a;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #fb7185;
    --accent-hover: #f43f5e;
    --card-bg: #1e293b;
    --border: #334155;
    --overlay-bg: rgba(11, 15, 26, 0.98);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --nav-bg: rgba(15, 23, 42, 0.85);
    --glass-bg: rgba(15, 23, 42, 0.25);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    background-color: var(--bg) !important;
    font-family: 'Inter', 'Noto Sans TC', sans-serif;
    color: var(--text) !important;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    background-color: transparent !important;
}

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Utility */
.loading-state { text-align: center; padding: 80px 0; color: var(--text-muted); font-size: 1.1rem; }
.spinner { width: 40px; height: 40px; border: 4px solid #e2e8f0; border-top: 4px solid var(--accent); border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto 16px; }