/* ==========================================================================
   Mesquita Representações - Main Stylesheet
   A minimalist, professional B2B design with light/dark mode support
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Light Mode */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;

    --color-secondary: #64748b;
    --color-secondary-hover: #475569;

    --color-success: #059669;
    --color-success-light: #d1fae5;

    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;

    --color-warning: #d97706;
    --color-warning-light: #fef3c7;

    /* Background & Surface */
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-hover: #f1f5f9;

    /* Text */
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;

    /* Borders */
    --color-border: #e2e8f0;
    --color-border-hover: #cbd5e1;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

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

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

    /* Container */
    --container-max: 1200px;
    --container-narrow: 800px;
}

/* Dark Mode */
[data-theme="dark"] {
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-light: #1e3a5f;

    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-surface: #1e293b;
    --color-surface-hover: #334155;

    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;

    --color-border: #334155;
    --color-border-hover: #475569;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

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

button {
    font-family: inherit;
    cursor: pointer;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* --------------------------------------------------------------------------
   Layout Components
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.main-content {
    min-height: calc(100vh - 200px);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section--alt {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-base);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.logo:hover {
    color: var(--color-text);
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    display: none;
}

@media (min-width: 768px) {
    .logo-text {
        display: block;
    }
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

.hamburger {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    position: relative;
    transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-fast);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

.nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md);
    list-style: none;
}

.nav-menu.active {
    display: flex;
}

@media (min-width: 768px) {
    .nav-menu {
        display: flex;
        flex-direction: row;
        position: static;
        background: none;
        border: none;
        padding: 0;
        gap: var(--spacing-sm);
        align-items: center;
    }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
    background-color: var(--color-surface-hover);
}

.nav-link--cart {
    position: relative;
}

.cart-icon {
    width: 20px;
    height: 20px;
}

.cart-count {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.theme-toggle:hover {
    color: var(--color-text);
    border-color: var(--color-border-hover);
}

.theme-icon {
    width: 20px;
    height: 20px;
}

.theme-icon--dark {
    display: none;
}

[data-theme="dark"] .theme-icon--light {
    display: none;
}

[data-theme="dark"] .theme-icon--dark {
    display: block;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.btn--secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn--secondary:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-border-hover);
}

.btn--text {
    background: none;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
}

.btn--text:hover {
    color: var(--color-text);
}

.btn--danger {
    color: var(--color-danger);
}

.btn--danger:hover {
    color: var(--color-danger);
    background-color: var(--color-danger-light);
}

.btn--small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn--large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn--full {
    width: 100%;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    padding: var(--spacing-3xl) 0;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-bg-alt) 100%);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Product Cards
   -------------------------------------------------------------------------- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.product-card__link {
    display: block;
    color: inherit;
}

.product-card__link:hover {
    color: inherit;
}

.product-card__image {
    aspect-ratio: 4/3;
    background-color: var(--color-bg-alt);
    overflow: hidden;
}

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

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

.product-card__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.product-card__placeholder svg {
    width: 48px;
    height: 48px;
}

.product-card__content {
    padding: var(--spacing-lg);
}

.product-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.product-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card__sale-type {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.product-card__add {
    margin: 0 var(--spacing-lg) var(--spacing-lg);
    width: calc(100% - var(--spacing-lg) * 2);
}

/* --------------------------------------------------------------------------
   Company Cards
   -------------------------------------------------------------------------- */
.company-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.company-grid--large {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.company-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--color-text);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.company-card:hover {
    color: var(--color-text);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.company-card--large {
    flex-direction: row;
    text-align: left;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
}

.company-card__logo {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    margin-bottom: var(--spacing-md);
}

.company-card--large .company-card__logo {
    width: 100px;
    height: 100px;
    margin-bottom: 0;
}

.company-card__logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.company-card__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    border-radius: var(--radius-md);
}

.company-card__info {
    flex: 1;
}

.company-card__name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.company-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.company-card__cta {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* --------------------------------------------------------------------------
   Steps / How it Works
   -------------------------------------------------------------------------- */
.cta-box {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.cta-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.step {
    text-align: center;
}

.step__number {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.step__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.step__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Page Headers
   -------------------------------------------------------------------------- */
.page-header {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.breadcrumb a {
    color: var(--color-text-secondary);
}

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

/* --------------------------------------------------------------------------
   Company Header
   -------------------------------------------------------------------------- */
.company-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.company-header__logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

/* --------------------------------------------------------------------------
   Product Detail
   -------------------------------------------------------------------------- */
.product-detail {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr 1fr;
    }
}

.product-gallery__main {
    aspect-ratio: 1;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-gallery__thumbs {
    display: flex;
    gap: var(--spacing-sm);
}

.product-gallery__thumb {
    width: 60px;
    height: 60px;
    padding: 0;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: none;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.product-gallery__thumb.active,
.product-gallery__thumb:hover {
    border-color: var(--color-primary);
}

.product-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail__placeholder {
    aspect-ratio: 1;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.product-detail__placeholder svg {
    width: 80px;
    height: 80px;
}

.product-detail__brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.product-detail__brand img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.product-detail__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.product-detail__sale-type {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.product-detail__sale-type .label {
    color: var(--color-text-secondary);
}

.product-detail__sale-type .value {
    font-weight: 600;
    color: var(--color-primary);
}

.product-detail__description {
    margin-bottom: var(--spacing-xl);
}

.product-detail__description h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.product-detail__description p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Product Variants */
.product-detail__variants {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.variants-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.variants-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.variant-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.variant-btn:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.variant-btn.active {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: white;
}

.product-detail__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.quantity-selector label {
    font-weight: 500;
}

.quantity-input {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.quantity-btn {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    transition: background-color var(--transition-fast);
}

.quantity-btn:hover {
    background-color: var(--color-surface-hover);
}

.quantity-input input {
    width: 60px;
    height: 40px;
    text-align: center;
    border: none;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    background-color: var(--color-surface);
    color: var(--color-text);
}

.quantity-input input:focus {
    outline: none;
}

.product-detail__note {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.product-detail__note svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Simulation Page
   -------------------------------------------------------------------------- */
.simulation-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .simulation-layout {
        grid-template-columns: 1fr 400px;
        align-items: start;
    }
}

.simulation-section-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.simulation-products {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.simulation-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.simulation-item__info {
    flex: 1;
}

.simulation-item__name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.simulation-item__type {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.simulation-item__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.simulation-item__company {
    color: var(--color-primary);
    font-weight: 500;
}

.simulation-item__company::after {
    content: "•";
    margin-left: var(--spacing-sm);
    color: var(--color-text-muted);
}

.simulation-item__quantity {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.simulation-item__quantity input {
    width: 60px;
    height: 36px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    color: var(--color-text);
}

.simulation-item__remove {
    padding: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.simulation-item__remove:hover {
    color: var(--color-danger);
}

.simulation-item__remove svg {
    width: 20px;
    height: 20px;
}

.simulation-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.simulation-summary__count {
    font-weight: 600;
}

.simulation-form-container {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

/* --------------------------------------------------------------------------
   FAQ Page
   -------------------------------------------------------------------------- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    list-style: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.faq-item[open] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
}

.faq-cta {
    text-align: center;
    padding: var(--spacing-2xl);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-2xl);
}

.faq-cta h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.faq-cta p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .contact-layout {
        grid-template-columns: 1fr 1.5fr;
    }
}

.contact-info__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

.contact-info__item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-info__item svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-info__item h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.contact-info__item a,
.contact-info__item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.contact-form-container {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.contact-form__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

.contact-success {
    text-align: center;
    padding: var(--spacing-2xl);
}

.contact-success__icon {
    width: 64px;
    height: 64px;
    background-color: var(--color-success-light);
    color: var(--color-success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.contact-success__icon svg {
    width: 32px;
    height: 32px;
}

.contact-success h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.contact-success p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* --------------------------------------------------------------------------
   Error Page
   -------------------------------------------------------------------------- */
.error-page {
    text-align: center;
    padding: var(--spacing-3xl);
}

.error-page__icon svg {
    width: 80px;
    height: 80px;
    color: var(--color-warning);
    margin-bottom: var(--spacing-lg);
}

.error-page__title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.error-page__message {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.error-page__actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* --------------------------------------------------------------------------
   Modal
   -------------------------------------------------------------------------- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal__content {
    position: relative;
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.modal__icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.modal__icon--success {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.modal__icon svg {
    width: 32px;
    height: 32px;
}

.modal__title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.modal__text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.modal__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-contact svg {
    width: 16px;
    height: 16px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.footer-contact a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.footer-bottom {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Toast Notifications
   -------------------------------------------------------------------------- */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast--success {
    border-left: 4px solid var(--color-success);
}

.toast--error {
    border-left: 4px solid var(--color-danger);
}

.toast__message {
    font-size: var(--font-size-sm);
}

.toast__close {
    padding: var(--spacing-xs);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
}

/* --------------------------------------------------------------------------
   Products Toolbar (Search & Filter)
   -------------------------------------------------------------------------- */
.products-toolbar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

@media (min-width: 768px) {
    .products-toolbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 44px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    pointer-events: none;
}

.filter-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-box label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.products-count {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.product-card__company {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.empty-search-state {
    text-align: center;
    padding: var(--spacing-3xl);
}

.empty-search-state svg {
    width: 64px;
    height: 64px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-search-state h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.empty-search-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}