/* ========================================
   Hala Chat - Shared Styles
   ======================================== */

:root {
    --primary-color: #4A90E2;
    --secondary-color: #2C3E50;
    --text-color: #333333;
    --light-bg: #F8F9FA;
    --border-color: #E0E0E0;
    --success-color: #27AE60;
    --max-width: 900px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #FFFFFF;
}

/* RTL Support */
body[dir="rtl"] {
    font-family: 'SF Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #357ABD 100%);
    color: white;
    padding: 2.5rem 1.5rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

header p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* Navigation */
nav {
    background-color: var(--secondary-color);
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

nav li {
    margin: 0.5rem 1rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 0.8;
}

/* Main Content */
main {
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 0 1.5rem 3rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Features Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 0.8rem;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Content Sections */
section {
    margin-bottom: 3rem;
}

h2 {
    color: var(--secondary-color);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
}

h3 {
    color: var(--secondary-color);
    font-size: 1.4rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

body[dir="rtl"] ul,
body[dir="rtl"] ol {
    padding-right: 2rem;
    padding-left: 0;
}

li {
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

strong {
    color: var(--secondary-color);
    font-weight: 600;
}

/* Contact Section */
.contact {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 3rem;
}

.contact h3 {
    margin-top: 0;
}

.contact a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact a:hover {
    text-decoration: underline;
}

/* Download Section */
.download {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, #357ABD 100%);
    border-radius: 12px;
    color: white;
    margin: 3rem 0;
}

.download h2 {
    color: white;
    border-bottom: none;
    margin-bottom: 1.5rem;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: white;
    text-align: center;
    padding: 2rem 1.5rem;
    margin-top: 3rem;
}

footer p {
    margin-bottom: 0.5rem;
}

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

footer a:hover {
    text-decoration: underline;
}

/* Last Updated */
.last-updated {
    background: var(--light-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    text-align: center;
    font-size: 0.95rem;
    color: #666;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.6rem;
    }
    
    header p {
        font-size: 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    nav li {
        margin: 0.5rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    main {
        padding: 0 1rem 2rem;
    }
}