@font-face {
    font-family: 'Pretendard';
    src: url('../vendor/pretendard/PretendardVariable.woff2') format('woff2');
    font-style: normal;
    font-weight: 45 920;
    font-display: swap;
}

:root {
    /* --- Premium Cosmic Theme (Refined) --- */

    /* Core Palette */
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --primary-glow: rgba(139, 92, 246, 0.7);
    --primary-gradient: linear-gradient(135deg, #a78bfa 0%, #7c3aed 100%);

    --secondary: #0ea5e9;
    --secondary-hover: #0284c7;

    --accent: #f43f5e;
    --accent-glow: rgba(244, 63, 94, 0.7);

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Surface & Backgrounds */
    --bg-deep: #03030f;
    /* Deeper space */
    --bg-surface: #0b0b1a;
    /* Slight purple tint */
    --bg-suface-light: #15152a;
    --bg-gradient: radial-gradient(circle at 50% -20%, rgba(109, 40, 217, 0.25), rgba(3, 3, 15, 1) 70%);

    /* Text */
    --text-main: #f8fafc;
    --text-muted: #cbd5e1;
    --text-dim: #64748b;

    /* Boarders & Glass */
    --border: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.2);
    --glass-bg: rgba(11, 11, 26, 0.55);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shine: rgba(255, 255, 255, 0.1);

    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 40px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.35);

    /* Layout */
    --nav-width: 280px;
    --header-height: 70px;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
}

[data-theme='light'] {
    /* --- Ethereal Light Theme (Refined) --- */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);
    --primary-gradient: linear-gradient(135deg, #818cf8 0%, #4f46e5 100%);

    --bg-deep: #f8fafc;
    --bg-surface: #ffffff;
    --bg-suface-light: #f1f5f9;
    --bg-gradient: radial-gradient(circle at 50% -20%, rgba(99, 102, 241, 0.15), rgba(248, 250, 252, 1) 70%);

    --text-main: #0f172a;
    --text-muted: #475569;
    --text-dim: #94a3b8;

    --border: rgba(0, 0, 0, 0.08);
    --border-light: rgba(0, 0, 0, 0.15);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shine: rgba(255, 255, 255, 0.9);

    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 10px 30px -5px rgba(99, 102, 241, 0.25);
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    outline-color: var(--primary);
}

body {
    margin: 0;
    font-family:
        'Pretendard',
        -apple-system,
        BlinkMacSystemFont,
        'Segoe UI',
        Roboto,
        'Helvetica Neue',
        Arial,
        sans-serif;
    background: var(--bg-deep) var(--bg-gradient) no-repeat;
    background-attachment: fixed;
    color: var(--text-main);
    transition:
        background 0.5s cubic-bezier(0.4, 0, 0.2, 1),
        color 0.5s;
    overflow: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app {
    display: flex;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
}