:root {
    --bg-color: #05050f;
    --card-bg: rgba(17, 17, 31, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f0f2f5;
    --text-secondary: #a0a6bd;
    --accent: #00f2fe;
    --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --hover-gradient: linear-gradient(135deg, #00c9d3 0%, #3e8cd0 100%);
    --font-main: 'Cairo', sans-serif;
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Blobs */
.blob-c {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    filter: blur(120px);
    opacity: 0.35;
    border-radius: 50%;
    animation: drift 20s infinite alternate linear;
}

.blob1 {
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: #4facfe;
}

.blob2 {
    bottom: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: #6c5ce7;
    animation-delay: -5s;
}

@keyframes drift {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(50px) translateX(-50px); }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    background: rgba(5, 5, 15, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
}

.logo i {
    color: var(--accent);
    font-size: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 15px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    background: var(--hover-gradient);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
    width: 100%;
}

.w-100 {
    width: 100%;
}

/* Hero */
.hero-section {
    text-align: center;
    padding: 80px 0 60px;
}

.hero-section h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 0%, #a0a6bd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-section p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Feed */
.posts-feed {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-bottom: 60px;
}

.post-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    backdrop-filter: blur(12px);
    transition: var(--transition);
}

.post-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 242, 254, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.post-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.post-meta {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.post-title {
    font-size: 22px;
    margin-bottom: 12px;
    font-weight: 700;
}

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

.post-title a:hover {
    color: var(--accent);
}

.post-content {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-footer {
    display: flex;
    align-items: center;
}

.post-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(0, 242, 254, 0.1);
    color: var(--accent);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.post-link:hover {
    background: rgba(0, 242, 254, 0.2);
}

/* Single Post View */
.single-post-view {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    margin-top: 40px;
    backdrop-filter: blur(12px);
}

.single-post-view .post-title {
    font-size: 32px;
    margin-bottom: 16px;
}

.single-content {
    margin-top: 24px;
    font-size: 18px;
    color: #e0e2eb;
    line-height: 1.8;
}

.post-link-action {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.post-link-action a {
    text-decoration: none;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(2, 2, 5, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal-content {
    background: #0b0c15;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 500px;
    padding: 32px;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    left: 20px; /* Arabic layout RTL -> left */
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: #fff;
    transform: rotate(90deg);
}

.modal-content h2 {
    margin-bottom: 24px;
    font-size: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: #fff;
    font-family: var(--font-main);
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 0, 0, 0.6);
}

.form-message {
    margin-top: 16px;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    color: #00cec9;
}

.form-message.error {
    display: block;
    color: #ff7675;
}

.no-posts {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px dashed var(--border-color);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .hero-section h1 {
        font-size: 32px;
    }
    .modal-content {
        padding: 24px;
        max-width: calc(100% - 32px);
    }
}