/* سون تجارت ارس - Smart Trade System Homepage Styles */
/* Base Styles */
:root {
    /* Colors - Updated for a more professional business/finance platform */
    --color-primary: #0084ff;
    --color-primary-dark: #ffffff;
    --color-primary-light: #00a2ff;
    --color-secondary: #2c3e50;
    --color-secondary-light: #34495e;
    --color-text: #232F3E;
    --color-text-light: #778392;
    --color-background: #FFFFFF;
    --color-background-light: #F7F8FA;
    --color-background-alt: #EFF1F4;
    --color-border: #DDE3E9;
    --color-link: #0066C0;
    --color-link-hover: #004B8D;
    --color-success: #007600;
    --color-warning: rgb(255, 128, 1);
    --color-error: #C40000;
    --color-shadow: rgba(0, 0, 0, 0.08);
    
    /* Typography */
    --font-family-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-family-fa: 'IRANYekanX', 'Vazirmatn', Tahoma, Arial, sans-serif;
    --font-size-xs: 0.75rem;   /* 12px */
    --font-size-sm: 0.875rem;  /* 14px */
    --font-size-md: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;  /* 18px */
    --font-size-xl: 1.25rem;   /* 20px */
    --font-size-2xl: 1.5rem;   /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem;  /* 36px */
    --font-size-5xl: 3rem;     /* 48px */
    
    /* Spacing */
    --spacing-2xs: 0.125rem;  /* 2px */
    --spacing-xs: 0.25rem;     /* 4px */
    --spacing-sm: 0.5rem;      /* 8px */
    --spacing-md: 1rem;        /* 16px */
    --spacing-lg: 1.5rem;      /* 24px */
    --spacing-xl: 2rem;        /* 32px */
    --spacing-2xl: 2.5rem;     /* 40px */
    --spacing-3xl: 3rem;       /* 48px */
    --spacing-4xl: 4rem;       /* 64px */
    
    /* Border radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container width */
    --container-max-width: 1280px;
    --container-padding: 1rem;
    
    /* Elevation (shadows) */
    --shadow-sm: 0 1px 2px var(--color-shadow);
    --shadow-md: 0 4px 6px var(--color-shadow);
    --shadow-lg: 0 10px 15px -3px var(--color-shadow);
}

/* Box sizing for all elements */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Base HTML elements */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-fa);
    color: var(--color-text);
    line-height: 1.5;
    background-color: var(--color-background);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

html[lang="en"] body {
    font-family: var(--font-family-en);
}

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

/* Page Loader */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-background);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: var(--color-primary);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    background-color: var(--color-background);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--container-padding);
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo img {
    display: block;
    height: auto;
}

/* Navigation */
.main-nav {
    display: flex;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

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

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
}

/* Language Selector */
.language-selector {
    position: relative;
    margin-right: var(--spacing-md);
}

.lang-toggle {
    display: flex;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.lang-toggle:hover {
    color: var(--color-primary);
}

.dropdown-icon {
    margin-left: var(--spacing-xs);
    border-style: solid;
    border-width: 5px 5px 0;
    border-color: currentColor transparent transparent;
    display: inline-block;
    vertical-align: middle;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--color-background);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-sm);
    list-style: none;
    padding: var(--spacing-xs) 0;
    margin: var(--spacing-xs) 0 0;
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
    z-index: 10;
}

.language-selector:hover .lang-dropdown,
.lang-toggle[aria-expanded="true"] + .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--color-text);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.lang-dropdown a:hover {
    background-color: var(--color-background-light);
}

.lang-dropdown a.active {
    color: var(--color-primary);
    font-weight: 500;
}

/* Hamburger Menu */
.hamburger-icon {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger-icon span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    margin: 5px 0;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 320px;
    height: 100%;
    background-color: var(--color-background);
    z-index: 100;
    padding: var(--spacing-xl) var(--spacing-lg);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
}

.mobile-menu.active,
.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.mobile-menu-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text);
    cursor: pointer;
}

.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: var(--spacing-xl) 0;
}

.mobile-nav-item {
    margin: var(--spacing-md) 0;
}

.mobile-nav-link {
    display: block;
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-primary);
}

.mobile-language-selector {
    display: flex;
    margin-top: var(--spacing-xl);
}

.mobile-lang-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    margin-right: var(--spacing-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-lang-toggle[data-lang="fa"] {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Hero Section */
.hero-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-light);
    position: relative;
    overflow: hidden;
}

.hero-section .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-md);
    color: var(--color-secondary);
}

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

.hero-cta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    position: relative;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    border: none;
    font-size: var(--font-size-md);
}

.btn:active {
    transform: translateY(1px);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: white;
    position: relative;
}

.btn-secondary:hover {
    background-color: var(--color-secondary-light);
    box-shadow: var(--shadow-md);
}

.btn-secondary.disabled {
    background-color: var(--color-text-light);
    cursor: not-allowed;
    opacity: 0.7;
}

.coming-soon-badge {
    position: absolute;
    top: -15px;
    right: 0;
    background-color: var(--color-warning);
    color: white;
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: var(--border-radius-full);
    white-space: nowrap;
    transform: translateX(0);
}

/* Features Section */
.features-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background);
}

.section-title {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-2xl);
    color: var(--color-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-background-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-radius: var(--border-radius-full);
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-md);
    color: var(--color-secondary);
}

.feature-description {
    color: var(--color-text-light);
    margin: 0;
}

/* Benefits Section */
.benefits-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background-alt);
}

.benefits-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.benefits-content {
    flex: 1;
}

.benefits-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.benefits-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius-full);
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.benefit-text {
    flex: 1;
}

.benefit-text h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 0 var(--spacing-xs);
    color: var(--color-secondary);
}

.benefit-text p {
    color: var(--color-text-light);
    margin: 0;
}

/* How It Works Section */
.how-it-works-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-background);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 25px;
    width: 2px;
    background-color: var(--color-primary-light);
    z-index: 0;
}

.step-item {
    display: flex;
    align-items: flex-start;
    position: relative;
    z-index: 1;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-right: var(--spacing-lg);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.step-content {
    flex: 1;
    padding: var(--spacing-lg);
    background-color: var(--color-background-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-sm);
    color: var(--color-secondary);
}

.step-description {
    color: var(--color-text-light);
    margin: 0;
}

.cta-container {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 1s ease forwards;
}

.slide-up {
    animation: slideUp 0.8s ease forwards;
}

.fade-in-right {
    animation: fadeInRight 1s ease forwards;
}

.pulse {
    animation: pulse 2s infinite;
}

.clicked {
    animation: click 0.3s ease;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.language-transition {
    transition: opacity 0.3s ease;
    opacity: 0.8;
}

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

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

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes click {
    0% { transform: scale(1); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
    flex-wrap: wrap;
}

.trust-badge-item {
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-badge-item img {
    max-width: 100%;
    height: auto;
}

/* Footer Contact Info */
.footer-contact-info {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact-info p {
    margin: var(--spacing-xs) 0;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: translateY(-20px);
    transition: transform var(--transition-normal);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text);
    cursor: pointer;
}

.modal-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-xl);
    color: var(--color-secondary);
}

/* Form */
.order-form {
    display: grid;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

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

.form-group input,
.form-group textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* Footer */
.site-footer {
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-tagline {
    margin-top: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2xl);
}

.footer-links-column {
    min-width: 160px;
}

.footer-links-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin: 0 0 var(--spacing-md);
    color: white;
}

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

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

.footer-links-list a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: var(--border-radius-full);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-3px);
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal), background-color var(--transition-fast);
    z-index: 90;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-primary-dark);
}