/**
 * Rautamai Studio Core - Dynamic Pattern Cloud & Grid Engine
 * 
 * Target: Hero Graphic Backdrops, Mesh Gradients, Noise Overlays, & Card Tiles
 * Architecture: BEM Methodology with CSS Custom Properties
 * 
 * @package RautamaiCore
 */

/* ==========================================================================
   1. Scope & Design Tokens
   ========================================================================== */
.rms-pattern-scope {
    --rms-ptrn-primary: #0f172a;
    --rms-ptrn-accent: #4f46e5;
    --rms-ptrn-accent-glow: rgba(79, 70, 229, 0.15);
    --rms-ptrn-secondary-glow: rgba(236, 72, 153, 0.12);
    
    --rms-ptrn-grid-color: rgba(15, 23, 42, 0.06);
    --rms-ptrn-grid-dark: rgba(255, 255, 255, 0.05);
    --rms-ptrn-dot-color: rgba(148, 163, 184, 0.25);
    
    --rms-ptrn-card-bg: rgba(255, 255, 255, 0.8);
    --rms-ptrn-card-border: rgba(226, 232, 240, 0.8);
    --rms-ptrn-glass-blur: blur(16px);
    
    --rms-ptrn-radius-lg: 20px;
    --rms-ptrn-transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-sizing: border-box;
}

.rms-pattern-scope * {
    box-sizing: border-box;
}

/* ==========================================================================
   2. Canvas Grid & Dot Pattern Backdrops
   ========================================================================== */
/* Radial Fade Mask for smooth hero fading */
.rms-pattern-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    background-color: #ffffff;
}

.rms-pattern-mask {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    mask-image: radial-gradient(circle at center, black 40%, transparent 85%);
    -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 85%);
}

/* Linear Grid Overlay */
.rms-bg-grid {
    position: absolute;
    inset: 0;
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, var(--rms-ptrn-grid-color) 1px, transparent 1px),
        linear-gradient(to bottom, var(--rms-ptrn-grid-color) 1px, transparent 1px);
    pointer-events: none;
}

/* Polka Dot Pattern Overlay */
.rms-bg-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(var(--rms-ptrn-dot-color) 1.5px, transparent 1.5px);
    background-size: 24px 24px;
    pointer-events: none;
}

/* Isometric Cross Hatch Pattern */
.rms-bg-crosshatch {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(45deg, var(--rms-ptrn-grid-color) 25%, transparent 25%), 
        linear-gradient(-45deg, var(--rms-ptrn-grid-color) 25%, transparent 25%);
    background-size: 30px 30px;
    pointer-events: none;
}

/* ==========================================================================
   3. Dynamic Mesh Gradient Ambient Blobs
   ========================================================================== */
.rms-glow-cloud {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.8;
    animation: rms-float-glow 12s ease-in-out infinite alternate;
}

.rms-glow-cloud--primary {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--rms-ptrn-accent-glow) 0%, rgba(255,255,255,0) 70%);
    top: -100px;
    right: -100px;
}

.rms-glow-cloud--secondary {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--rms-ptrn-secondary-glow) 0%, rgba(255,255,255,0) 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: -6s;
}

@keyframes rms-float-glow {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(40px, 30px) scale(1.1);
    }
}

/* ==========================================================================
   4. Glassmorphic Cloud Pattern Cards
   ========================================================================== */
.rms-pattern-card {
    position: relative;
    z-index: 2;
    background: var(--rms-ptrn-card-bg);
    backdrop-filter: var(--rms-ptrn-glass-blur);
    -webkit-backdrop-filter: var(--rms-ptrn-glass-blur);
    border: 1px solid var(--rms-ptrn-card-border);
    border-radius: var(--rms-ptrn-radius-lg);
    padding: 32px;
    box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.05);
    transition: var(--rms-ptrn-transition);
}

.rms-pattern-card:hover {
    transform: translateY(-4px);
    border-color: rgba(79, 70, 229, 0.3);
    box-shadow: 0 25px 50px -12px rgba(79, 70, 229, 0.12);
}

/* ==========================================================================
   5. Decorative Section Dividers
   ========================================================================== */
.rms-divider-wave {
    position: relative;
    width: 100%;
    height: 60px;
    color: #ffffff;
    pointer-events: none;
}

.rms-divider-wave svg {
    display: block;
    width: 100%;
    height: 100%;
    fill: currentColor;
}