@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;600;700;800&display=swap');

:root {
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --primary-color: #10b981;
    --primary-hover: #059669;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Cairo', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    direction: rtl;
    overflow-x: hidden;
}

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

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

img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    margin-bottom: 1rem;
    font-weight: 700;
}

p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* Header & Nav */
header {
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-main);
    font-weight: 600;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section & Tool */
.hero {
    margin-top: 80px;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.95)), url('../images/hero_bg.png') center/cover;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3rem;
    max-width: 800px;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 3rem;
}

.tool-container {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 600px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    position: relative;
}

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

.search-box {
    display: flex;
    gap: 1rem;
}

.search-box input {
    flex: 1;
    padding: 1rem 1.5rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 1.1rem;
    outline: none;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.search-box button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0 2rem;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-box button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

/* Loading & Results */
#loading-spinner {
    display: none;
    margin: 2rem auto;
    width: 40px;
    height: 40px;
    border: 4px solid var(--surface-hover);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#search-results {
    margin-top: 2rem;
    display: none;
    text-align: right;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.result-card {
    background-color: var(--surface-hover);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.result-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

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

/* Article Container */
.main-content {
    max-width: 900px;
    margin: 4rem auto;
    padding: 0 2rem;
}

article section {
    margin-bottom: 3rem;
}

article h2 {
    font-size: 2rem;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-top: 2rem;
}

article h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
}

article ul, article ol {
    margin-bottom: 1.5rem;
    padding-right: 2rem;
    color: var(--text-muted);
}

article li {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.article-image {
    margin: 2rem 0;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.article-image img {
    display: block;
    width: 100%;
    transition: transform 0.5s ease;
}

.article-image:hover img {
    transform: scale(1.02);
}

/* Footer */
footer {
    background-color: var(--surface-color);
    padding: 4rem 2rem 2rem;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    color: var(--text-main);
    margin-bottom: 1.5rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.8rem;
}

.footer-col a {
    color: var(--text-muted);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Page Headers (About, Contact etc) */
.page-header {
    margin-top: 80px;
    padding: 4rem 2rem;
    text-align: center;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--surface-color);
        flex-direction: column;
        padding: 2rem;
        text-align: center;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box button {
        padding: 1rem;
        justify-content: center;
    }
}