/*
 * MossInteractive.com Styles
 * Tailwind CSS-inspired utility classes + custom styles
 * Brand Colors: Blue #0066CC, Red #CC0000, Silver #C0C0C0
 */

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

* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

/* ==========================================
   CSS Custom Properties
   ========================================== */
:root {
    /* Brand Colors */
    --color-blue-50: #eff6ff;
    --color-blue-100: #dbeafe;
    --color-blue-200: #bfdbfe;
    --color-blue-300: #93c5fd;
    --color-blue-400: #60a5fa;
    --color-blue-500: #3b82f6;
    --color-blue-600: #0066CC;
    --color-blue-700: #0052a3;
    --color-blue-800: #003d7a;
    --color-blue-900: #002952;

    --color-red-500: #ef4444;
    --color-red-600: #CC0000;
    --color-red-700: #a30000;

    --color-silver: #C0C0C0;

    /* Gray Scale */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ==========================================
   Typography
   ========================================== */
.antialiased { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1.16; }
.text-6xl { font-size: 3.75rem; line-height: 1.1; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.leading-tight { line-height: 1.25; }
.leading-snug { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }

.tracking-tight { letter-spacing: -0.025em; }
.tracking-normal { letter-spacing: 0; }
.tracking-wide { letter-spacing: 0.025em; }

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

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

/* Text Colors */
.text-white { color: #fff; }
.text-black { color: #000; }
.text-gray-50 { color: var(--color-gray-50); }
.text-gray-100 { color: var(--color-gray-100); }
.text-gray-200 { color: var(--color-gray-200); }
.text-gray-300 { color: var(--color-gray-300); }
.text-gray-400 { color: var(--color-gray-400); }
.text-gray-500 { color: var(--color-gray-500); }
.text-gray-600 { color: var(--color-gray-600); }
.text-gray-700 { color: var(--color-gray-700); }
.text-gray-800 { color: var(--color-gray-800); }
.text-gray-900 { color: var(--color-gray-900); }
.text-blue-400 { color: var(--color-blue-400); }
.text-blue-500 { color: var(--color-blue-500); }
.text-blue-600 { color: var(--color-blue-600); }
.text-blue-700 { color: var(--color-blue-700); }
.text-red-500 { color: var(--color-red-500); }
.text-red-600 { color: var(--color-red-600); }
.text-green-600 { color: var(--color-success); }
.text-green-800 { color: #166534; }
.text-red-800 { color: #991b1b; }

/* ==========================================
   Backgrounds
   ========================================== */
.bg-white { background-color: #fff; }
.bg-black { background-color: #000; }
.bg-transparent { background-color: transparent; }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }
.bg-gray-200 { background-color: var(--color-gray-200); }
.bg-gray-800 { background-color: var(--color-gray-800); }
.bg-gray-900 { background-color: var(--color-gray-900); }
.bg-blue-50 { background-color: var(--color-blue-50); }
.bg-blue-100 { background-color: var(--color-blue-100); }
.bg-blue-500 { background-color: var(--color-blue-500); }
.bg-blue-600 { background-color: var(--color-blue-600); }
.bg-blue-700 { background-color: var(--color-blue-700); }
.bg-red-50 { background-color: #fef2f2; }
.bg-green-50 { background-color: #f0fdf4; }

.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-blue-600 { --tw-gradient-from: var(--color-blue-600); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.to-blue-800 { --tw-gradient-to: var(--color-blue-800); }
.from-gray-900 { --tw-gradient-from: var(--color-gray-900); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
.to-gray-800 { --tw-gradient-to: var(--color-gray-800); }

/* ==========================================
   Layout
   ========================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.grow { flex-grow: 1; }
.shrink-0 { flex-shrink: 0; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-full { grid-column: 1 / -1; }

.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-5 { gap: var(--spacing-5); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }
.gap-10 { gap: var(--spacing-10); }
.gap-12 { gap: var(--spacing-12); }

/* ==========================================
   Spacing
   ========================================== */
/* Margin */
.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-1); }
.m-2 { margin: var(--spacing-2); }
.m-4 { margin: var(--spacing-4); }
.m-auto { margin: auto; }

.mx-auto { margin-left: auto; margin-right: auto; }
.my-4 { margin-top: var(--spacing-4); margin-bottom: var(--spacing-4); }
.my-8 { margin-top: var(--spacing-8); margin-bottom: var(--spacing-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-10 { margin-top: var(--spacing-10); }
.mt-12 { margin-top: var(--spacing-12); }
.mt-16 { margin-top: var(--spacing-16); }
.mt-20 { margin-top: var(--spacing-20); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-10 { margin-bottom: var(--spacing-10); }
.mb-12 { margin-bottom: var(--spacing-12); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--spacing-1); }
.ml-2 { margin-left: var(--spacing-2); }
.ml-3 { margin-left: var(--spacing-3); }
.ml-4 { margin-left: var(--spacing-4); }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--spacing-1); }
.mr-2 { margin-right: var(--spacing-2); }
.mr-3 { margin-right: var(--spacing-3); }
.mr-4 { margin-right: var(--spacing-4); }

.-mt-1 { margin-top: -0.25rem; }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-1); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-5 { padding: var(--spacing-5); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }
.p-10 { padding: var(--spacing-10); }

.px-2 { padding-left: var(--spacing-2); padding-right: var(--spacing-2); }
.px-3 { padding-left: var(--spacing-3); padding-right: var(--spacing-3); }
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.px-5 { padding-left: var(--spacing-5); padding-right: var(--spacing-5); }
.px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
.px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }

.py-1 { padding-top: var(--spacing-1); padding-bottom: var(--spacing-1); }
.py-2 { padding-top: var(--spacing-2); padding-bottom: var(--spacing-2); }
.py-3 { padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
.py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }
.py-10 { padding-top: var(--spacing-10); padding-bottom: var(--spacing-10); }
.py-12 { padding-top: var(--spacing-12); padding-bottom: var(--spacing-12); }
.py-16 { padding-top: var(--spacing-16); padding-bottom: var(--spacing-16); }
.py-20 { padding-top: var(--spacing-20); padding-bottom: var(--spacing-20); }
.py-24 { padding-top: var(--spacing-24); padding-bottom: var(--spacing-24); }

.pt-2 { padding-top: var(--spacing-2); }
.pt-4 { padding-top: var(--spacing-4); }
.pt-6 { padding-top: var(--spacing-6); }
.pt-8 { padding-top: var(--spacing-8); }

.pb-2 { padding-bottom: var(--spacing-2); }
.pb-4 { padding-bottom: var(--spacing-4); }
.pb-6 { padding-bottom: var(--spacing-6); }
.pb-8 { padding-bottom: var(--spacing-8); }

/* ==========================================
   Sizing
   ========================================== */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-8 { width: 2rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.w-32 { width: 8rem; }
.w-48 { width: 12rem; }
.w-64 { width: 16rem; }

.h-auto { height: auto; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.h-24 { height: 6rem; }
.h-32 { height: 8rem; }
.h-48 { height: 12rem; }
.h-64 { height: 16rem; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }

.min-h-screen { min-height: 100vh; }
.min-w-0 { min-width: 0; }

.max-w-xs { max-width: 20rem; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }
.max-w-full { max-width: 100%; }
.max-w-prose { max-width: 65ch; }

/* ==========================================
   Borders
   ========================================== */
.border { border-width: 1px; border-style: solid; }
.border-0 { border-width: 0; }
.border-2 { border-width: 2px; }
.border-t { border-top-width: 1px; border-style: solid; }
.border-b { border-bottom-width: 1px; border-style: solid; }
.border-l { border-left-width: 1px; border-style: solid; }
.border-l-4 { border-left-width: 4px; }

.border-transparent { border-color: transparent; }
.border-gray-100 { border-color: var(--color-gray-100); }
.border-gray-200 { border-color: var(--color-gray-200); }
.border-gray-300 { border-color: var(--color-gray-300); }
.border-gray-700 { border-color: var(--color-gray-700); }
.border-gray-800 { border-color: var(--color-gray-800); }
.border-blue-200 { border-color: var(--color-blue-200); }
.border-blue-500 { border-color: var(--color-blue-500); }
.border-blue-600 { border-color: var(--color-blue-600); }
.border-green-200 { border-color: #bbf7d0; }
.border-red-200 { border-color: #fecaca; }

.rounded { border-radius: var(--radius-md); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }
.rounded-l-lg { border-top-left-radius: var(--radius-lg); border-bottom-left-radius: var(--radius-lg); }
.rounded-r-lg { border-top-right-radius: var(--radius-lg); border-bottom-right-radius: var(--radius-lg); }

/* ==========================================
   Shadows
   ========================================== */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-none { box-shadow: none; }

/* ==========================================
   Positioning
   ========================================== */
.static { position: static; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.top-4 { top: 1rem; }
.right-0 { right: 0; }
.right-4 { right: 1rem; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.left-4 { left: 1rem; }

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* ==========================================
   Effects
   ========================================== */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

.transition { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter; transition-timing-function: ease; transition-duration: var(--transition-normal); }
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: ease; transition-duration: var(--transition-normal); }
.transition-all { transition-property: all; transition-timing-function: ease; transition-duration: var(--transition-normal); }
.transition-transform { transition-property: transform; transition-timing-function: ease; transition-duration: var(--transition-normal); }

.duration-150 { transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

.transform { transform: translateX(var(--tw-translate-x, 0)) translateY(var(--tw-translate-y, 0)) rotate(var(--tw-rotate, 0)) scale(var(--tw-scale-x, 1), var(--tw-scale-y, 1)); }
.hover\:scale-105:hover { transform: scale(1.05); }
.-translate-y-1 { --tw-translate-y: -0.25rem; transform: translateY(-0.25rem); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }

.backdrop-blur-sm { backdrop-filter: blur(4px); }

/* ==========================================
   Overflow & Visibility
   ========================================== */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre-wrap { white-space: pre-wrap; }

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.focus\:not-sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* ==========================================
   Hover & Focus States
   ========================================== */
.hover\:text-white:hover { color: #fff; }
.hover\:text-gray-300:hover { color: var(--color-gray-300); }
.hover\:text-gray-900:hover { color: var(--color-gray-900); }
.hover\:text-blue-600:hover { color: var(--color-blue-600); }
.hover\:text-blue-700:hover { color: var(--color-blue-700); }

.hover\:bg-gray-50:hover { background-color: var(--color-gray-50); }
.hover\:bg-gray-100:hover { background-color: var(--color-gray-100); }
.hover\:bg-blue-50:hover { background-color: var(--color-blue-50); }
.hover\:bg-blue-600:hover { background-color: var(--color-blue-600); }
.hover\:bg-blue-700:hover { background-color: var(--color-blue-700); }

.hover\:border-blue-600:hover { border-color: var(--color-blue-600); }

.hover\:shadow-lg:hover { box-shadow: var(--shadow-lg); }
.hover\:shadow-xl:hover { box-shadow: var(--shadow-xl); }

.focus\:outline-none:focus { outline: none; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px var(--color-blue-500); }
.focus\:border-blue-500:focus { border-color: var(--color-blue-500); }

.group:hover .group-hover\:text-blue-600 { color: var(--color-blue-600); }
.group:hover .group-hover\:translate-x-1 { transform: translateX(0.25rem); }

/* ==========================================
   Forms
   ========================================== */
.placeholder-gray-400::placeholder { color: var(--color-gray-400); }
.placeholder-gray-500::placeholder { color: var(--color-gray-500); }

input, textarea, select {
    appearance: none;
}

input:focus, textarea:focus, select:focus {
    outline: none;
}

.form-input {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    background-color: white;
    font-size: 1rem;
    line-height: 1.5;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    border-color: var(--color-blue-500);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-input.error {
    border-color: var(--color-error);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-error {
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--color-error);
}

/* Checkbox & Radio */
.form-checkbox, .form-radio {
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--color-gray-300);
    background-color: white;
    transition: all var(--transition-fast);
}

.form-checkbox { border-radius: var(--radius-sm); }
.form-radio { border-radius: 50%; }

.form-checkbox:checked, .form-radio:checked {
    background-color: var(--color-blue-600);
    border-color: var(--color-blue-600);
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-blue-600);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-blue-700);
}

.btn-secondary {
    background-color: white;
    color: var(--color-gray-700);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-blue-600);
    border-color: var(--color-blue-600);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-blue-600);
    color: white;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* ==========================================
   Cards
   ========================================== */
.card {
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-body {
    padding: 1.5rem;
}

/* ==========================================
   Responsive Utilities
   ========================================== */
/* Small devices (sm: 640px+) */
@media (min-width: 640px) {
    .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:flex-row { flex-direction: row; }
    .sm\:text-left { text-align: left; }
}

/* Medium devices (md: 768px+) */
@media (min-width: 768px) {
    .md\:flex { display: flex; }
    .md\:hidden { display: none; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:flex-row { flex-direction: row; }
    .md\:space-y-0 > * + * { margin-top: 0; }
    .md\:text-left { text-align: left; }
    .md\:text-5xl { font-size: 3rem; }
    .md\:py-16 { padding-top: 4rem; padding-bottom: 4rem; }
}

/* Large devices (lg: 1024px+) */
@media (min-width: 1024px) {
    .lg\:flex { display: flex; }
    .lg\:hidden { display: none; }
    .lg\:block { display: block; }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:col-span-1 { grid-column: span 1 / span 1; }
    .lg\:col-span-2 { grid-column: span 2 / span 2; }
    .lg\:flex-row { flex-direction: row; }
    .lg\:items-center { align-items: center; }
    .lg\:justify-between { justify-content: space-between; }
    .lg\:gap-12 { gap: 3rem; }
    .lg\:h-20 { height: 5rem; }
    .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
    .lg\:py-16 { padding-top: 4rem; padding-bottom: 4rem; }
    .lg\:py-20 { padding-top: 5rem; padding-bottom: 5rem; }
    .lg\:py-24 { padding-top: 6rem; padding-bottom: 6rem; }
    .lg\:text-6xl { font-size: 3.75rem; }
    .lg\:text-left { text-align: left; }
    .lg\:max-w-none { max-width: none; }
    .lg\:w-1\/2 { width: 50%; }
}

/* Extra large devices (xl: 1280px+) */
@media (min-width: 1280px) {
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ==========================================
   Spacing Utilities (Additional)
   ========================================== */
.space-x-1 > * + * { margin-left: var(--spacing-1); }
.space-x-2 > * + * { margin-left: var(--spacing-2); }
.space-x-3 > * + * { margin-left: var(--spacing-3); }
.space-x-4 > * + * { margin-left: var(--spacing-4); }
.space-x-6 > * + * { margin-left: var(--spacing-6); }
.space-x-8 > * + * { margin-left: var(--spacing-8); }

.space-y-1 > * + * { margin-top: var(--spacing-1); }
.space-y-2 > * + * { margin-top: var(--spacing-2); }
.space-y-3 > * + * { margin-top: var(--spacing-3); }
.space-y-4 > * + * { margin-top: var(--spacing-4); }
.space-y-6 > * + * { margin-top: var(--spacing-6); }
.space-y-8 > * + * { margin-top: var(--spacing-8); }

/* ==========================================
   Custom Components
   ========================================== */
/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.85) 0%, rgba(0, 61, 122, 0.9) 100%),
                url('../images/hero-bg.png') center/cover no-repeat;
    color: white;
    padding: 4rem 0;
}

@media (min-width: 1024px) {
    .hero { padding: 6rem 0; }
}

.hero-pattern::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.hero-pattern > * {
    position: relative;
    z-index: 1;
}

/* Service Card */
.service-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-gray-100);
}

.service-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
    border-color: var(--color-blue-200);
}

.service-card .icon-wrapper {
    width: 3.5rem;
    height: 3.5rem;
    background: var(--color-blue-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-blue-600);
    margin-bottom: 1.5rem;
}

/* Portfolio Card */
.portfolio-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--color-gray-100);
    aspect-ratio: 16 / 10;
}

.portfolio-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-card:hover img {
    transform: scale(1.05);
}

.portfolio-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    color: white;
}

/* Team Card */
.team-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-normal);
}

.team-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-blue-200);
}

.team-card .avatar {
    width: 8rem;
    height: 8rem;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    overflow: hidden;
    background: var(--color-gray-200);
}

.team-card .avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Tag/Chip */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.tag-blue {
    background: var(--color-blue-50);
    color: var(--color-blue-700);
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 48rem;
    margin: 0 auto 3rem;
}

.section-header .eyebrow {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-blue-600);
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .section-header h2 { font-size: 3rem; }
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    line-height: 1.75;
}

/* Blog Card */
.blog-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-normal);
}

.blog-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-blue-200);
}

.blog-card .thumbnail {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-gray-100);
}

.blog-card .thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .thumbnail img {
    transform: scale(1.05);
}

/* Testimonial */
.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-gray-100);
}

.testimonial-card blockquote {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--color-gray-700);
    margin-bottom: 1.5rem;
}

/* FAQ Accordion */
.faq-item {
    border-bottom: 1px solid var(--color-gray-200);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.25rem 0;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-gray-900);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.faq-question:hover {
    color: var(--color-blue-600);
}

.faq-answer {
    padding-bottom: 1.25rem;
    color: var(--color-gray-600);
    line-height: 1.75;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.breadcrumbs a {
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
    color: var(--color-blue-600);
}

.breadcrumbs .separator {
    color: var(--color-gray-400);
}

/* Prose (for blog content) */
.prose {
    color: var(--color-gray-700);
    max-width: 65ch;
    line-height: 1.75;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
    color: var(--color-gray-900);
    font-weight: 700;
    margin-top: 2em;
    margin-bottom: 1em;
}

.prose h1 { font-size: 2.25rem; }
.prose h2 { font-size: 1.5rem; }
.prose h3 { font-size: 1.25rem; }

.prose p {
    margin-bottom: 1.25em;
}

.prose a {
    color: var(--color-blue-600);
    text-decoration: underline;
}

.prose a:hover {
    color: var(--color-blue-700);
}

.prose ul, .prose ol {
    padding-left: 1.5em;
    margin-bottom: 1.25em;
}

.prose li {
    margin-bottom: 0.5em;
}

.prose blockquote {
    border-left: 4px solid var(--color-blue-500);
    padding-left: 1em;
    font-style: italic;
    color: var(--color-gray-600);
    margin: 1.5em 0;
}

.prose code {
    background: var(--color-gray-100);
    padding: 0.125em 0.375em;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

.prose pre {
    background: var(--color-gray-900);
    color: var(--color-gray-100);
    padding: 1em;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: 1.5em 0;
}

.prose pre code {
    background: none;
    padding: 0;
}

.prose img {
    border-radius: var(--radius-lg);
    margin: 2em 0;
}

/* Loading spinner */
.spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Filter chips */
.filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-chip:hover {
    background: var(--color-gray-200);
}

.filter-chip.active {
    background: var(--color-blue-600);
    color: white;
}

/* Stats */
.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-card .stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-blue-600);
    line-height: 1;
}

.stat-card .stat-label {
    margin-top: 0.5rem;
    font-size: 1rem;
    color: var(--color-gray-600);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.9) 0%, rgba(31, 41, 55, 0.85) 100%),
                url('../images/cta-bg.png') center/cover no-repeat;
    color: white;
    border-radius: var(--radius-2xl);
    padding: 3rem 2rem;
    text-align: center;
}

@media (min-width: 768px) {
    .cta-section { padding: 4rem 3rem; }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in { animation: fadeIn 0.5s ease-out; }
.animate-slide-up { animation: slideUp 0.5s ease-out; }

/* Object fit utilities */
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }
.object-center { object-position: center; }

/* Aspect ratio */
.aspect-video { aspect-ratio: 16 / 9; }
.aspect-square { aspect-ratio: 1 / 1; }

/* List styles */
.list-disc { list-style-type: disc; }
.list-decimal { list-style-type: decimal; }
.list-none { list-style-type: none; }
.list-inside { list-style-position: inside; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Pointer events */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

/* User select */
.select-none { user-select: none; }
.select-text { user-select: text; }

/* Background opacity variants */
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-black\/50 { background-color: rgba(0, 0, 0, 0.5); }
.bg-gray-800\/80 { background-color: rgba(31, 41, 55, 0.8); }
.bg-gray-900\/70 { background-color: rgba(17, 24, 39, 0.7); }