/**
 * FloorSathi — Core Design System & Tokens
 * Engineering & Industrial Flooring Theme
 * Primary: #0B2F5B | Accent: #00B8B0
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
    /* Brand Color Palette */
    --fs-primary: #0B2F5B;
    --fs-primary-rgb: 11, 47, 91;
    --fs-primary-dark: #071F3D;
    --fs-primary-light: #16437B;
    --fs-accent: #00B8B0;
    --fs-accent-rgb: 0, 184, 176;
    --fs-accent-dark: #009690;
    --fs-accent-light: #E6FBF9;
    --fs-accent-glow: rgba(0, 184, 176, 0.25);

    /* Neutral & Surface Tokens */
    --fs-dark: #0A1420;
    --fs-slate: #1E293B;
    --fs-muted: #64748B;
    --fs-border: #E2E8F0;
    --fs-border-dark: #334155;
    --fs-surface: #F8FAFC;
    --fs-surface-alt: #F1F5F9;
    --fs-surface-card: #FFFFFF;

    /* Status Colors */
    --fs-success: #10B981;
    --fs-warning: #F59E0B;
    --fs-danger: #EF4444;
    --fs-info: #3B82F6;

    /* Typography */
    --fs-font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --fs-font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;

    /* Elevation & Shadows */
    --fs-shadow-sm: 0 1px 3px rgba(11, 47, 91, 0.06), 0 1px 2px rgba(11, 47, 91, 0.04);
    --fs-shadow-md: 0 4px 6px -1px rgba(11, 47, 91, 0.08), 0 2px 4px -2px rgba(11, 47, 91, 0.06);
    --fs-shadow-lg: 0 10px 25px -5px rgba(11, 47, 91, 0.10), 0 8px 10px -6px rgba(11, 47, 91, 0.06);
    --fs-shadow-xl: 0 20px 35px -5px rgba(11, 47, 91, 0.15), 0 10px 15px -5px rgba(11, 47, 91, 0.08);

    /* Radii */
    --fs-radius-sm: 6px;
    --fs-radius-md: 10px;
    --fs-radius-lg: 16px;
    --fs-radius-xl: 24px;
    --fs-radius-full: 9999px;

    /* Transitions */
    --fs-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --fs-transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --fs-transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Core Setup */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    font-family: var(--fs-font-main);
    color: var(--fs-slate);
    background-color: #FFFFFF;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Headings with Technical Font */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--fs-font-heading);
    color: var(--fs-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

/* Technical Blueprint Grid Pattern */
.bg-grid-pattern {
    background-image: radial-gradient(rgba(11, 47, 91, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
}

.bg-grid-dark {
    background-color: var(--fs-primary-dark);
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 32px 32px;
}

/* Industrial Pill Badges */
.fs-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--fs-radius-full);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.fs-badge-primary {
    background-color: rgba(11, 47, 91, 0.08);
    color: var(--fs-primary);
    border: 1px solid rgba(11, 47, 91, 0.15);
}

.fs-badge-accent {
    background-color: var(--fs-accent-light);
    color: var(--fs-accent-dark);
    border: 1px solid rgba(0, 184, 176, 0.25);
}

.fs-badge-dark {
    background-color: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
}

/* Modern Industrial Buttons */
.btn-fs-primary {
    background-color: var(--fs-primary);
    color: #FFFFFF;
    border: 1px solid var(--fs-primary);
    padding: 0.75rem 1.6rem;
    font-weight: 600;
    border-radius: var(--fs-radius-md);
    box-shadow: 0 4px 12px rgba(11, 47, 91, 0.2);
    transition: all var(--fs-transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 48px;
}

.btn-fs-primary:hover, .btn-fs-primary:focus {
    background-color: var(--fs-primary-light);
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(11, 47, 91, 0.3);
}

.btn-fs-accent {
    background-color: var(--fs-accent);
    color: #071F3D;
    border: 1px solid var(--fs-accent);
    padding: 0.75rem 1.6rem;
    font-weight: 700;
    border-radius: var(--fs-radius-md);
    box-shadow: 0 4px 14px var(--fs-accent-glow);
    transition: all var(--fs-transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 48px;
}

.btn-fs-accent:hover, .btn-fs-accent:focus {
    background-color: #00D1C8;
    color: #071F3D;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 184, 176, 0.4);
}

.btn-fs-outline {
    background-color: transparent;
    color: var(--fs-primary);
    border: 1.5px solid var(--fs-primary);
    padding: 0.75rem 1.6rem;
    font-weight: 600;
    border-radius: var(--fs-radius-md);
    transition: all var(--fs-transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 48px;
}

.btn-fs-outline:hover, .btn-fs-outline:focus {
    background-color: var(--fs-primary);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.btn-fs-outline-light {
    background-color: rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.6rem;
    font-weight: 600;
    border-radius: var(--fs-radius-md);
    backdrop-filter: blur(6px);
    transition: all var(--fs-transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 48px;
}

.btn-fs-outline-light:hover, .btn-fs-outline-light:focus {
    background-color: #FFFFFF;
    color: var(--fs-primary);
    border-color: #FFFFFF;
    transform: translateY(-2px);
}

/* Section Header Component */
.section-header {
    margin-bottom: 3rem;
}

.section-subtitle {
    font-family: var(--fs-font-main);
    color: var(--fs-accent-dark);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-subtitle::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background-color: var(--fs-accent);
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: var(--fs-primary);
}

.section-desc {
    color: var(--fs-muted);
    font-size: 1.0625rem;
    max-width: 680px;
    line-height: 1.65;
}

/* Glassmorphism Elements */
.glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--fs-shadow-lg);
}

.glass-panel-dark {
    background: rgba(11, 47, 91, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Sticky Industrial Navigation Bar */
.navbar-floorsathi {
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--fs-border);
    transition: all var(--fs-transition-normal);
    z-index: 1040;
}

.navbar-floorsathi.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--fs-shadow-md);
}

.navbar-brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--fs-primary) 0%, var(--fs-accent) 100%);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--fs-radius-md);
    font-size: 1.25rem;
    box-shadow: 0 4px 10px rgba(11, 47, 91, 0.25);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--fs-font-heading);
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--fs-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.brand-name span {
    color: var(--fs-accent);
}

.brand-tagline {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--fs-muted);
    font-weight: 600;
}

/* Nav Links */
.navbar-floorsathi .nav-link {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--fs-slate);
    padding: 0.6rem 0.9rem !important;
    border-radius: var(--fs-radius-sm);
    transition: all var(--fs-transition-fast);
}

.navbar-floorsathi .nav-link:hover,
.navbar-floorsathi .nav-link:focus,
.navbar-floorsathi .nav-link.active {
    color: var(--fs-primary);
    background-color: var(--fs-surface-alt);
}

.navbar-floorsathi .nav-link.active {
    color: var(--fs-primary);
    font-weight: 700;
}

/* Top utility bar */
.top-utility-bar {
    background-color: var(--fs-primary-dark);
    color: #94A3B8;
    font-size: 0.8125rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-utility-bar a {
    color: #CBD5E1;
    text-decoration: none;
    transition: color var(--fs-transition-fast);
}

.top-utility-bar a:hover {
    color: var(--fs-accent);
}