/* PanelWashPro - Base Styles, Typography & Background Textures */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

h1 { font-size: var(--fs-4xl); letter-spacing: -0.02em; }
h2 { font-size: var(--fs-3xl); letter-spacing: -0.01em; }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }

p {
    margin-bottom: 1rem;
    color: var(--color-text-muted);
    font-size: var(--fs-base);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-hover);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-accent { color: var(--color-primary); }
.text-eco { color: var(--color-eco); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }
.text-dark { color: var(--color-dark); }
.text-danger { color: #ef4444; }

/* Background Textures, Micro-Grids & Gradients */
.bg-white { background-color: var(--color-white); }
.bg-light { background-color: var(--color-bg); }
.bg-primary { background-color: var(--color-primary); color: var(--color-white); }

/* Elegant Textured Backgrounds */
.bg-mesh-pattern {
    background-color: #f8fafc;
    background-image: 
        radial-gradient(at 0% 0%, rgba(0, 136, 255, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.05) 0px, transparent 50%),
        radial-gradient(rgba(15, 23, 42, 0.04) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 24px 24px;
}

.bg-gradient-light {
    background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 50%, #e2e8f0 100%);
}

.bg-gradient-navy {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 70%, #0f172a 100%);
    color: var(--color-white);
}

.bg-dark-texture {
    background-color: #0f172a;
    background-image: 
        radial-gradient(at 10% 10%, rgba(0, 136, 255, 0.15) 0px, transparent 40%),
        radial-gradient(at 90% 90%, rgba(16, 185, 129, 0.1) 0px, transparent 40%),
        repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.015) 0, rgba(255, 255, 255, 0.015) 1px, transparent 0, transparent 50%);
    background-size: 100% 100%, 100% 100%, 16px 16px;
    color: var(--color-white);
}

.bg-glass-card {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    border-radius: var(--radius-lg);
}

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-start { justify-content: flex-start; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }
.gap-4 { gap: 1.5rem; }

.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-600 { max-width: 600px; }
.max-w-650 { max-width: 650px; }
.max-w-850 { max-width: 850px; }
.max-w-900 { max-width: 900px; }

.fw-bold { font-weight: 700; }
.fs-xs { font-size: var(--fs-xs); }
.fs-sm { font-size: var(--fs-sm); }
.fs-base { font-size: var(--fs-base); }
.fs-lg { font-size: var(--fs-lg); }
.fs-xl { font-size: var(--fs-xl); }

.border-top { border-top: 1px solid var(--color-border); }
.border { border: 1px solid var(--color-border); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.py-1 { padding-top: 1rem; padding-bottom: 1rem; }
.py-2 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-3 { padding-top: 2rem; padding-bottom: 2rem; }
.py-4 { padding-top: 3rem; padding-bottom: 3rem; }
.py-5 { padding-top: 4.5rem; padding-bottom: 4.5rem; }

.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.pt-3 { padding-top: 1rem; }
.pt-5 { padding-top: 3rem; }