/* ===== تنظیمات پایه ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Iranian Sans', 'Segoe UI', sans-serif;
}
body {
    background: #0b0e1a;
    color: #e0e0e0;
    line-height: 1.6;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== لودر ===== */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: #0b0e1a;
    display: flex;
    justify-content: center;
    align-items: center;
}
.loader {
    width: 50px;
    height: 50px;
    border: 5px solid #2a2f4a;
    border-top: 5px solid #6c63ff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== هدر ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(11, 14, 26, 0.85);
    backdrop-filter: blur(12px);
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s;
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #fff;
}
.logo i { color: #6c63ff; margin-left: 8px; }
.nav-links {
    display: flex;
    gap: 30px;
}
.nav-links a {
    color: #bbb;
    font-weight: 500;
    transition: 0.3s;
    position: relative;
}
.nav-links a:hover,
.nav-links a.active {
    color: #fff;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #6c63ff;
    transition: 0.3s;
}
.nav-links a:hover::after { width: 100%; }
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.burger span {
    width: 28px;
    height: 3px;
    background: #fff;
    border-radius: 5px;
    transition: 0.3s;
}

/* ===== هیرو با ذرات ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, #0b0e1a 0%, #1a1f33 100%);
    overflow: hidden;
}
#particles-js {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-content {
    position: relative;
    z-index: 1;
}
.hero-content h1 {
    font-size: 3.8rem;
    background: linear-gradient(to right, #6c63ff, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}
.hero-content p {
    font-size: 1.3rem;
    color: #ccc;
    max-width: 700px;
    margin: 0 auto 30px;
}
.btn-primary {
    display: inline-block;
    background: linear-gradient(45deg, #6c63ff, #8b5cf6);
    color: #fff;
    padding: 14px 40px;
    border-radius: 50px;
    font-weight: 600;
    transition: 0.3s;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(108, 99, 255, 0.4);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(108, 99, 255, 0.6);
}
.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: #6c63ff;
    font-size: 2rem;
}
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0);} 50%{transform:translateX(-50%) translateY(-10px);} }

/* ===== خدمات ===== */
.services {
    padding: 80px 0;
    background: #11152a;
}
.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.service-card {
    background: #1a1f3a;
    padding: 30px 20px;
    border-radius: 20px;
    text-align: center;
    transition: 0.4s;
    border: 1px solid transparent;
}
.service-card:hover {
    border-color: #6c63ff;
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(108, 99, 255, 0.15);
}
.service-card i {
    font-size: 3rem;
    color: #6c63ff;
    margin-bottom: 20px;
}
.service-card h3 { margin-bottom: 12px; }

/* ===== نمونه کار ===== */
.portfolio {
    padding: 80px 0;
}
.portfolio h2 { text-align: center; font-size: 2.5rem; margin-bottom: 50px; }
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}
.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 250px;
    cursor: pointer;
}
.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}
.portfolio-item:hover img { transform: scale(1.1); }
.portfolio-item .overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 14, 26, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: 0.4s;
}
.portfolio-item:hover .overlay { opacity: 1; }
.overlay h4 { color: #fff; font-size: 1.4rem; }
.overlay p { color: #ccc; margin: 8px 0 15px; }

/* ===== درباره ===== */
.about {
    padding: 80px 0;
    background: #11152a;
}
.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: center;
}
.about-stats span {
    font-size: 2.5rem;
    font-weight: bold;
    color: #6c63ff;
}

/* ===== فرم تماس ===== */
.contact {
    padding: 80px 0;
}
.contact h2 { text-align: center; font-size: 2.5rem; margin-bottom: 40px; }
#requestForm {
    max-width: 600px;
    margin: auto;
    background: #1a1f3a;
    padding: 40px;
    border-radius: 30px;
}
.form-group { margin-bottom: 20px; }
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid #2a2f4a;
    border-radius: 12px;
    background: #11152a;
    color: #fff;
    font-size: 1rem;
    transition: 0.3s;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: #6c63ff;
    outline: none;
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* ===== فوتر ===== */
footer {
    background: #0b0e1a;
    padding: 30px 0;
    border-top: 1px solid #1a1f3a;
    text-align: center;
}
.social a {
    display: inline-block;
    margin: 0 12px;
    font-size: 1.5rem;
    color: #6c63ff;
    transition: 0.3s;
}
.social a:hover { transform: scale(1.2); }

/* ===== ریسپانسیو ===== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: #0b0e1a;
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        clip-path: circle(0% at 50% 0%);
        transition: 0.5s;
    }
    .nav-links.open { clip-path: circle(150% at 50% 0%); }
    .burger { display: flex; }
    .hero-content h1 { font-size: 2.5rem; }
    .about .container { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr 1fr; }
}

/* ===== پنل مدیریت ===== */
.admin-panel { background: #0b0e1a; }
.admin-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}
.admin-sidebar {
    background: #11152a;
    padding: 30px;
    border-left: 1px solid #1a1f3a;
}
.admin-sidebar h2 { margin-bottom: 30px; }
.admin-sidebar ul li { margin: 18px 0; }
.admin-sidebar a { color: #bbb; transition: 0.3s; }
.admin-sidebar a:hover { color: #6c63ff; }
.admin-main {
    padding: 40px;
}
.admin-main section { margin-bottom: 60px; }
.admin-main .form-group { margin-bottom: 20px; }
.admin-main label { display: block; margin-bottom: 6px; color: #aaa; }
.admin-main input, .admin-main textarea {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #2a2f4a;
    background: #11152a;
    color: #fff;
}
.alert.success {
    background: #1a3a2a;
    color: #7ae0a0;
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
}
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
.login-box {
    background: #1a1f3a;
    padding: 40px;
    border-radius: 30px;
    width: 350px;
    text-align: center;
}
.login-box input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 10px;
    border: 1px solid #2a2f4a;
    background: #11152a;
    color: #fff;
}
.login-box .error { color: #f87171; margin-bottom: 10px; }