/* ============================================
   فونت و تنظیمات پایه
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;700;900&display=swap');

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

:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-gradient: linear-gradient(135deg, #1a56db, #60a5fa);
    --secondary: #0f172a;
    --white: #ffffff;
    --gray-50: #f8faff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #64748b;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --shadow: 0 20px 60px rgba(26, 86, 219, 0.15);
    --shadow-hover: 0 30px 80px rgba(26, 86, 219, 0.25);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Vazirmatn', sans-serif;
    background: var(--white);
    color: var(--gray-800);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ============================================
   اسکرول‌بار سفارشی
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--gray-100);
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ============================================
   هدر و ناوبری
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
    background: transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.08);
    padding: 10px 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 45px;
    width: auto;
}

.logo a {
    font-size: 24px;
    font-weight: 900;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
}

.nav-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   بخش اصلی (Hero)
   ============================================ */
.hero {
    min-height: 100vh;
    background: var(--gray-50);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text {
    animation: fadeInUp 0.8s ease;
}

.hero-badge {
    display: inline-block;
    background: rgba(26, 86, 219, 0.1);
    color: var(--primary);
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.hero-text h1 .highlight {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 520px;
    margin-bottom: 35px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(26, 86, 219, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(26, 86, 219, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
    text-align: center;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 900;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}

.hero-wave svg {
    display: block;
    width: 100%;
}

/* ============================================
   انیمیشن‌ها
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ============================================
   بخش پروژه‌های شاخص
   ============================================ */
.featured {
    padding: 80px 0 60px;
    background: var(--white);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* ============================================
   بخش نمونه کارها
   ============================================ */
.portfolio {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: rgba(26, 86, 219, 0.1);
    color: var(--primary);
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 16px;
    color: var(--gray-600);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    border: 2px solid var(--gray-200);
    background: transparent;
    font-family: 'Vazirmatn', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

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

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

/* استایل لینک کارت */
.portfolio-card-link,
.featured-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.portfolio-card-link:hover,
.featured-card-link:hover {
    transform: translateY(-10px);
}

.portfolio-card,
.featured-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.portfolio-card:hover,
.featured-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

/* ============================================
   لوگوهای نمونه کارها
   ============================================ */
.portfolio-card .icon-box,
.featured-card .icon-box {
    width: 90px;
    height: 90px;
    background: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    overflow: hidden;
    transition: var(--transition);
    border: 2px solid #ffffff;
    padding: 12px;
}

.portfolio-card .icon-box .portfolio-logo,
.featured-card .icon-box .portfolio-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
    filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.25));
}

.portfolio-card:hover .icon-box,
.featured-card:hover .icon-box {
    background: var(--primary);
    border-color: var(--primary);
}

.portfolio-card:hover .icon-box .portfolio-logo,
.featured-card:hover .icon-box .portfolio-logo {
    filter: brightness(0) invert(1);
}

.portfolio-card .icon-box .icon-fallback,
.featured-card .icon-box .icon-fallback {
    font-size: 40px;
    line-height: 1;
}

.portfolio-card h3,
.featured-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.portfolio-card .category,
.featured-card .category {
    font-size: 12px;
    color: var(--gray-600);
    display: block;
    margin-bottom: 10px;
}

.portfolio-card p,
.featured-card p {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 15px;
    flex-grow: 1;
}

.portfolio-card .view-link,
.featured-card .view-link {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
    cursor: pointer;
    background: none;
    border: none;
    font-family: inherit;
}

.portfolio-card .view-link:hover,
.featured-card .view-link:hover {
    color: var(--primary-dark);
}

.portfolio-card .view-link i,
.featured-card .view-link i {
    margin-left: 6px;
    transition: var(--transition);
}

.portfolio-card:hover .view-link i,
.featured-card:hover .view-link i {
    transform: translateX(-5px);
}

/* ============================================
   بخش توضیحات طراحی اختصاصی
   ============================================ */
.portfolio-description {
    margin-top: 50px;
    padding-top: 40px;
    border-top: 2px solid var(--gray-100);
}

.description-box {
    background: var(--gray-50);
    padding: 40px;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.description-box:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.description-box i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 20px;
    display: inline-block;
}

.description-box h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.description-box p {
    font-size: 16px;
    color: var(--gray-600);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   بخش مزایا
   ============================================ */
.benefits {
    padding: 100px 0;
    background: var(--gray-50);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background: rgba(26, 86, 219, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 28px;
    color: var(--primary);
    transition: var(--transition);
}

.benefit-card:hover .benefit-icon {
    background: var(--primary);
    color: var(--white);
}

.benefit-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 14px;
    color: var(--gray-600);
}

/* ============================================
   بخش تماس
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.info-item:hover {
    background: var(--gray-100);
}

.info-item i {
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

.info-item a,
.info-item p {
    font-size: 15px;
    color: var(--gray-800);
    font-weight: 500;
}

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

.contact-form {
    background: var(--gray-50);
    padding: 40px;
    border-radius: var(--radius);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 14px;
    transition: var(--transition);
    background: var(--white);
    color: var(--gray-800);
    margin-bottom: 15px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

.contact-form select {
    appearance: none;
    cursor: pointer;
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   فوتر
   ============================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-logo p {
    margin-top: 8px;
    font-size: 14px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
    transition: var(--transition);
    font-size: 18px;
}

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

/* ============================================
   نمادهای اعتماد
   ============================================ */
.trust-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px 0;
    margin: 10px auto;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.trust-items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

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

.trust-img {
    height: 55px;
    width: auto;
    max-width: 130px;
    display: block;
    transition: transform 0.2s ease;
}

.trust-item a:hover .trust-img {
    transform: scale(1.05);
}

/* ============================================
   فوتر پایین
   ============================================ */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 25px;
    font-size: 14px;
    flex-wrap: wrap;
    gap: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 10px;
}

.footer-bottom a {
    color: var(--primary-light);
}

.footer-bottom a:hover {
    color: var(--white);
}

/* ============================================
   رسپانسیو
   ============================================ */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        padding: 30px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-info {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
    }

    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 20px;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        font-size: 18px;
        padding: 10px 0;
        display: block;
    }

    .hero-text h1 {
        font-size: 30px;
    }

    .hero-stats {
        grid-template-columns: 1fr 1fr 1fr;
        padding: 20px;
        gap: 15px;
    }

    .stat-number {
        font-size: 28px;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 15px;
    }

    .benefits-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }

    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .contact-form {
        padding: 25px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .description-box {
        padding: 25px;
    }
    .description-box i {
        font-size: 36px;
    }
    .description-box h3 {
        font-size: 18px;
    }
    .description-box p {
        font-size: 14px;
    }

    .trust-items {
        gap: 25px;
    }
    .trust-img {
        height: 45px;
        max-width: 100px;
    }

    .portfolio-card .icon-box,
    .featured-card .icon-box {
        width: 75px;
        height: 75px;
        padding: 10px;
    }
    .portfolio-card .icon-box .portfolio-logo,
    .featured-card .icon-box .portfolio-logo {
        width: 85%;
        height: 85%;
    }

    .featured-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: 24px;
    }

    .hero-stats {
        grid-template-columns: 1fr 1fr 1fr;
        padding: 15px;
        gap: 10px;
    }

    .stat-number {
        font-size: 22px;
    }

    .stat-label {
        font-size: 11px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: 1fr 1fr;
    }

    .portfolio-filters {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
    }

    .trust-items {
        gap: 20px;
        flex-direction: column;
    }
    .trust-img {
        height: 50px;
    }

    .portfolio-card .icon-box,
    .featured-card .icon-box {
        width: 70px;
        height: 70px;
        padding: 8px;
    }
    .portfolio-card .icon-box .portfolio-logo,
    .featured-card .icon-box .portfolio-logo {
        width: 80%;
        height: 80%;
    }

    .featured-grid {
        grid-template-columns: 1fr;
    }
}