/**
 * Global Styles - Natural Paints & Coatings
 * Modern Design System with CSS Variables
 * 2026 Industrial Design with Paint-Inspired Aesthetics
 */

@import url('https://fonts.cdnfonts.com/css/argentum-sans');

/* ============================================
   CSS RESET & BASE
   ============================================ */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Ombre Red/White Theme */
    --color-primary: #DC2626;
    --color-primary-light: #EF4444;
    --color-primary-dark: #B91C1C;

    /* Brand Logo Colors */
    --color-logo-red: #D20103;
    --color-logo-green: #008237;

    --color-secondary: #F87171;
    --color-secondary-light: #FCA5A5;
    --color-secondary-dark: #991B1B;

    --color-accent: #FFFFFF;
    --color-accent-light: #FFFFFF;
    --color-accent-dark: #FEE2E2;

    --color-neutral-100: #FFFFFF;
    --color-neutral-200: #FEF2F2;
    --color-neutral-300: #FEE2E2;
    --color-neutral-400: #FECACA;
    --color-neutral-500: #F87171;
    --color-neutral-600: #1F2937;
    --color-neutral-700: #111827;
    --color-neutral-800: #343A40;
    --color-neutral-900: #450A0A;

    /* Gradient Colors - Ombre Effects */
    --gradient-primary: linear-gradient(135deg, #B91C1C 0%, #DC2626 50%, #EF4444 100%);
    --gradient-secondary: linear-gradient(135deg, #991B1B 0%, #DC2626 50%, #EF4444 100%);
    --gradient-accent: linear-gradient(135deg, #DC2626 0%, #FFFFFF 100%);
    --gradient-dark: linear-gradient(135deg, #7F1D1D 0%, #B91C1C 100%);

    /* Paint Blob Gradients */
    --gradient-blob-1: radial-gradient(circle at 30% 50%, rgba(220, 38, 38, 0.3), transparent 70%);
    --gradient-blob-2: radial-gradient(circle at 70% 50%, rgba(239, 68, 68, 0.2), transparent 70%);
    --gradient-blob-3: radial-gradient(circle at 50% 80%, rgba(254, 202, 202, 0.25), transparent 70%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-brand: 'Argentum Sans', sans-serif;
    /* Argentum Sans Black is weight 900 */
    --font-brand-black: 'Argentum Sans', sans-serif;

    --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.5rem);
    --font-size-xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --font-size-2xl: clamp(2rem, 1.6rem + 2vw, 3rem);
    --font-size-3xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);
    --font-size-4xl: clamp(3rem, 2.5rem + 3vw, 5rem);

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 900;

    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing System */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --glass-blur: blur(10px);

    /* Animation Timings */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 800ms cubic-bezier(0.4, 0, 0.2, 1);

    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-Index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ============================================
   BASE STYLES
   ============================================ */

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-neutral-800);
    background-color: transparent;
    /* Changed to transparent for video bg */
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-neutral-900);
    margin-bottom: var(--space-md);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--space-md);
    line-height: var(--line-height-relaxed);
}

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

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

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-md);
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.justify-end {
    justify-content: flex-end;
}

.gap-xs {
    gap: var(--space-xs);
}

.gap-sm {
    gap: var(--space-sm);
}

.gap-md {
    gap: var(--space-md);
}

.gap-lg {
    gap: var(--space-lg);
}

.gap-xl {
    gap: var(--space-xl);
}

/* Grid Utilities */
.grid {
    display: grid;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Spacing */
.mt-auto {
    margin-top: auto;
}

.mb-auto {
    margin-bottom: auto;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* Text Alignment */
.text-left {
    text-align: left;
}

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

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

/* Display */
.hidden {
    display: none;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

/* Position */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

/* Overflow */
.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

/* Width & Height */
.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

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

/* Glassmorphism Effect */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Parallax Layer */
.parallax-layer {
    transition: transform 0.3s ease-out;
    will-change: transform;
}

/* Section Spacing */
.section {
    padding: var(--space-4xl) 0;
}

.section-sm {
    padding: var(--space-2xl) 0;
}

.section-lg {
    padding: 6rem 0;
}

/* ============================================
   BUTTON STYLES
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255, 255, 255, 0.3), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.btn:hover::before {
    opacity: 1;
}

.btn:active {
    transform: scale(0.98);
}

/* Button Variants */
.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-neutral-100);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--color-neutral-100);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--gradient-accent);
    color: var(--color-neutral-100);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-neutral-100);
}

.btn-ghost {
    background: transparent;
    color: var(--color-primary);
}

.btn-ghost:hover {
    background: rgba(124, 58, 237, 0.1);
}

/* Button Sizes */
.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: var(--font-size-lg);
}

/* ============================================
   CARD STYLES
   ============================================ */

.card {
    background: var(--color-neutral-100);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
}

.card-body {
    padding: var(--space-lg);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* ============================================
   FORM STYLES
   ============================================ */

.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-neutral-700);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-neutral-800);
    background: var(--color-neutral-100);
    border: 2px solid var(--color-neutral-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: #DC2626;
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-2xl) 0;
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   LOADING STATES
   ============================================ */

.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--color-neutral-300);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

}

/* ============================================
   FIXED VIDEO BACKGROUND
   ============================================ */

.fixed-video-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
    overflow: hidden;
}

.fixed-video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.fixed-video-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(240, 235, 255, 0.4);
    /* Light overly to match home */
    backdrop-filter: blur(2px);
    z-index: 1;
}

/* ============================================
   FIXED IMAGE BACKGROUND
   ============================================ */

.fixed-image-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.fixed-image-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.4);
    /* Light overly for readability */
    backdrop-filter: blur(2px);
    z-index: 1;
}