/* ConstructionERP.Website — site styles */

:root {
    --color-primary: #2b6cb0;
    --color-primary-dark: #1e4e8a;
    --color-primary-light: #ebf4ff;
    --color-text: #1a202c;
    --color-text-muted: #4a5568;
    --color-bg: #ffffff;
    --color-bg-alt: #f7fafc;
    --color-border: #e2e8f0;
    --color-footer-bg: #1a202c;
    --color-footer-text: #cbd5e0;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-ar: "Segoe UI", Tahoma, Arial, sans-serif;
    --container-max: 1100px;
    --container-narrow: 640px;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --header-height: 64px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

html[dir="rtl"] body {
    font-family: var(--font-family-ar);
}

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

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

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

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--spacing-sm);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
}

.logo-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    object-fit: contain;
}

.logo span {
    line-height: 1;
}

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

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-md);
}

.main-nav a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
}

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

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

.lang-switch {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.lang-btn {
    background: var(--color-bg);
    border: none;
    padding: 0.35rem 0.65rem;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: background 0.15s, color 0.15s;
}

.lang-btn:hover {
    background: var(--color-bg-alt);
}

.lang-btn.active {
    background: var(--color-primary);
    color: #fff;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    text-align: center;
    white-space: nowrap;
}

.btn-sm {
    padding: 0.45rem 0.9rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
}

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

.btn-outline:hover {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.text-link {
    font-weight: 600;
}

/* Hero */
.hero {
    background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
    padding: var(--spacing-xl) 0;
}

.hero-inner {
    text-align: center;
    max-width: 720px;
}

.hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    line-height: 1.25;
    margin: 0 0 var(--spacing-md);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin: 0 0 var(--spacing-lg);
}

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

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
}

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

.section-title {
    text-align: center;
    font-size: 1.75rem;
    margin: 0 0 var(--spacing-lg);
}

.page-header {
    background: var(--color-bg-alt);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    margin: 0 0 var(--spacing-xs);
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.page-subtitle {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

/* Grids */
.feature-grid {
    display: grid;
    gap: var(--spacing-md);
}

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

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

.feature-grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

/* Cards */
.card,
.feature-card,
.info-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-md) var(--spacing-sm);
}

.feature-icon {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.feature-card h3,
.card h3 {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 600;
}

.info-card h2,
.info-card h3 {
    margin-top: 0;
}

.info-card p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.import-banner {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow);
}

.import-banner h2 {
    margin-top: 0;
}

.import-banner p {
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto var(--spacing-sm);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    align-items: stretch;
}

.pricing-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg) var(--spacing-md);
    box-shadow: var(--shadow);
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card-featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.pricing-card h3 {
    margin-top: 0;
}

.pricing-card p {
    color: var(--color-text-muted);
    flex-grow: 1;
}

.price {
    margin: var(--spacing-md) 0;
}

.price-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-period {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.badge {
    position: absolute;
    top: -10px;
    inset-inline-end: var(--spacing-md);
    background: var(--color-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
}

/* Docs */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.docs-card h2 {
    font-size: 1.125rem;
    margin-top: 0;
}

.docs-card p {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Contact form */
.contact-form {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9375rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.15s;
}

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

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-primary-light);
    border-radius: var(--radius);
    color: var(--color-primary-dark);
    font-weight: 500;
}

/* Steps */
.steps-list {
    max-width: 560px;
    margin: 0 auto;
    padding-inline-start: 1.25rem;
}

.steps-list li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.steps-list li::marker {
    color: var(--color-primary);
    font-weight: 700;
}

/* Footer */
.site-footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding-top: var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.footer-brand strong {
    color: #fff;
    font-size: 1.125rem;
}

.footer-brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-brand-logo img {
    flex-shrink: 0;
    object-fit: contain;
}

.footer-brand p {
    margin: var(--spacing-xs) 0 0;
    font-size: 0.875rem;
}

.footer-links h4 {
    color: #fff;
    margin: 0 0 var(--spacing-sm);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.4rem;
}

.footer-links a {
    color: var(--color-footer-text);
    font-size: 0.9375rem;
}

.footer-links a:hover {
    color: #fff;
}

.placeholder-link {
    color: var(--color-footer-text);
    font-size: 0.9375rem;
    opacity: 0.7;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) 0;
}

.footer-bottom p {
    margin: 0;
    font-size: 0.8125rem;
    text-align: center;
}

/* Responsive */
@media (max-width: 992px) {
    .feature-grid-6 {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        inset-inline: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .main-nav.is-open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }

    .main-nav li {
        border-bottom: 1px solid var(--color-border);
    }

    .main-nav li:last-child {
        border-bottom: none;
    }

    .main-nav a {
        display: block;
        padding: var(--spacing-sm) 0;
    }

    .header-inner {
        flex-wrap: wrap;
        position: relative;
    }

    .header-actions {
        order: 3;
        width: 100%;
        justify-content: space-between;
        padding-bottom: var(--spacing-xs);
    }

    .feature-grid-2,
    .feature-grid-3,
    .feature-grid-6,
    .docs-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header-actions .btn-sm {
        flex: 1;
    }
}