/* ==========================================================================
   Section: theme_variables.css | Lines 1 to 117
   ========================================================================== */
/* ===================================================
   에코델타시티 presale_rights 추천매물 homepage
   Premium Design System
   =================================================== */

/* ===== CSS Variables (Design Tokens) ===== */
:root {
    /* Primary palette - Deep Navy & Gold */
    --primary-900: #111827;
    --primary-800: #1a2236;
    --primary-700: #243352;
    --primary-600: #1e3a5f;
    --primary-500: #2563eb;
    --primary-400: #3b82f6;
    --primary-300: #60a5fa;

    /* Accent - Warm Gold */
    --accent-500: #d4a023;
    --accent-400: #e6b84d;
    --accent-300: #f0cf72;

    /* Surface colors */
    --surface-50: #f8fafc;
    --surface-100: #f1f5f9;
    --surface-200: #e2e8f0;
    --surface-300: #cbd5e1;
    --surface-400: #94a3b8;
    --surface-500: #64748b;
    --surface-600: #475569;
    --surface-700: #334155;
    --surface-800: #1e293b;
    --surface-900: #0f172a;

    /* Semantic */
    --danger: #ef4444;
    --success: #10b981;

    /* Typography */
    --font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;

    /* Spacing */
    --container-max: 1200px;
    --section-padding: 100px;

    /* Effects */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 60px rgba(37, 99, 235, 0.15);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--primary-900);
    color: var(--surface-200);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Background Particles ===== */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.3), transparent);
    animation: float-particle linear infinite;
    pointer-events: none;
    box-shadow: 0 0 6px 1px rgba(212, 160, 35, 0.15);
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(720deg);
        opacity: 0;
    }
}