/* ~~~~~~~~~~ رنگ بندی اصلی: آبی خوش رنگ و خاکستری ~~~~~~~~~~ */
:root {
    --deep-sky: #0a7b9e; /* آبی خوشرنگ و عمیق */
    --light-aqua: #6ed4e6; /* آبی روشن تر برای هاور */
    --cool-gray: #5a6b7a; /* خاکستری آبی شیک */
    --soft-gray: #eef2f5; /* خاکستری خیلی روشن پس زمینه */
    --charcoal: #2d3e4f; /* خاکستری تیره برای متن و فوتر */
    --pure-white: #ffffff;
    --border-light: #dbe5ec;
    --shadow-sm: 0 10px 30px -10px rgba(10, 123, 158, 0.15);
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Inter', sans-serif;
      background-color: var(--soft-gray);
      color: var(--charcoal);
      line-height: 1.6;
      direction: rtl; /* تغییر به rtl برای سازگاری با فارسی */
    }
    
    /* انیمیشن‌های جدید برای جذاب‌تر کردن UI */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    .fade-in {
      animation: fadeIn 1s ease-out;
    }
    
    .service-card, .electronics-item, .showcase-item {
      animation: fadeIn 0.5s ease-in-out;
    }
    
    .service-card:hover, .electronics-item:hover, .showcase-item:hover {
      transform: scale(1.05);
      transition: transform 0.3s ease;
    }
    
    /* استایل‌های جدید برای modal */
    .modal {
      display: none;
      position: fixed;
      z-index: 1000;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      overflow: auto;
      background-color: rgba(0,0,0,0.4);
    }
    
    .modal-content {
      background-color: #fefefe;
      margin: 15% auto;
      padding: 20px;
      border: 1px solid #888;
      width: 80%;
      max-width: 600px;
      border-radius: 20px;
    }
    
    .close {
      color: #aaa;
      float: right;
      font-size: 28px;
      font-weight: bold;
    }
    
    .close:hover,
    .close:focus {
      color: black;
      text-decoration: none;
      cursor: pointer;
    }
    
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 30px;
    }
    
    /* ~~~~~~~~~~ هدر و ناوبری ~~~~~~~~~~ */
    header {
      background: var(--pure-white);
      box-shadow: 0 4px 20px rgba(0,0,0,0.02);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 2px solid var(--deep-sky);
    }
    
    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 0;
    }
    
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    
    .logo i {
      font-size: 2.2rem;
      color: var(--deep-sky);
      filter: drop-shadow(0 2px 4px rgba(10,123,158,0.3));
    }
    
    .logo span {
      font-size: 1.9rem;
      font-weight: 800;
      letter-spacing: -1px;
      color: var(--charcoal);
    }
    
    .logo span small {
      font-size: 0.9rem;
      font-weight: 400;
      color: var(--cool-gray);
      margin-left: 5px;
      letter-spacing: 0.5px;
    }
    
    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }
    
    .nav-links a {
      text-decoration: none;
      font-weight: 600;
      color: var(--charcoal);
      transition: 0.2s;
      font-size: 1rem;
      padding-bottom: 5px;
      border-bottom: 2px solid transparent;
    }
    
    .nav-links a:hover {
      color: var(--deep-sky);
      border-bottom-color: var(--deep-sky);
    }
    
    .btn-contact {
      background: var(--deep-sky);
      color: white !important;
      padding: 10px 22px !important;
      border-radius: 40px;
      border-bottom: none !important;
      font-weight: 600;
      box-shadow: 0 6px 12px rgba(10,123,158,0.25);
    }
    
    .btn-contact:hover {
      background: #087090;
      color: white;
    }
    
    /* ~~~~~~~~~~ بخش قهرمان / Hero ~~~~~~~~~~ */
    .hero {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 50px 0 70px;
      gap: 40px;
      flex-wrap: wrap;
    }
    
    .hero-content {
      flex: 1 1 400px;
    }
    
    .hero-badge {
      background: rgba(106, 212, 230, 0.2);
      color: var(--deep-sky);
      display: inline-block;
      padding: 8px 18px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 0.85rem;
      letter-spacing: 0.5px;
      margin-bottom: 20px;
      border: 1px solid var(--light-aqua);
    }
    
    .hero h1 {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.1;
      color: var(--charcoal);
      margin-bottom: 20px;
    }
    
    .hero h1 i {
      color: var(--deep-sky);
    }
    
    .hero .highlight {
      color: var(--deep-sky);
      border-bottom: 4px solid var(--light-aqua);
      display: inline-block;
      padding-bottom: 2px;
    }
    
    .hero p {
      font-size: 1.2rem;
      color: var(--cool-gray);
      max-width: 550px;
      margin-bottom: 35px;
    }
    
    .hero-actions {
      display: flex;
      gap: 20px;
      align-items: center;
      flex-wrap: wrap;
    }
    
    .btn {
      padding: 14px 36px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      cursor: pointer;
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }
    
    .btn-primary {
      background: var(--deep-sky);
      color: white;
      box-shadow: 0 10px 20px rgba(10,123,158,0.35);
    }
    
    .btn-primary:hover {
      background: #096a88;
      transform: translateY(-3px);
      box-shadow: 0 15px 25px rgba(10,123,158,0.4);
    }
    
    .btn-outline {
      background: transparent;
      color: var(--deep-sky);
      border: 2px solid var(--deep-sky);
    }
    
    .btn-outline:hover {
      background: rgba(10,123,158,0.04);
      transform: translateY(-2px);
    }
    
    .hero-stats {
      display: flex;
      margin-top: 45px;
      gap: 35px;
    }
    
    .stat-item h3 {
      font-size: 1.9rem;
      font-weight: 700;
      color: var(--charcoal);
    }
    
    .stat-item p {
      font-size: 0.9rem;
      color: var(--cool-gray);
      margin-bottom: 0;
    }
    
    .hero-image {
      flex: 1 1 350px;
      background: linear-gradient(145deg, #f0f6fa, #e3ecf1);
      padding: 30px;
      border-radius: 30px;
      display: flex;
      justify-content: center;
      align-items: center;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
    }
    
    .hero-image i {
      font-size: 12rem;
      color: var(--deep-sky);
      opacity: 0.85;
    }
    
    /* ~~~~~~~~~~ بخش خدمات (کارت‌های اصلی) ~~~~~~~~~~ */
    .section-title {
      text-align: center;
      margin-bottom: 25px;
    }
    
    .section-title h2 {
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--charcoal);
      position: relative;
      display: inline-block;
      padding-bottom: 15px;
    }
    
    .section-title h2:after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background: var(--deep-sky);
      border-radius: 4px;
    }
    
    .section-title p {
      color: var(--cool-gray);
      font-size: 1.1rem;
      margin-top: 15px;
    }
    
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
      margin: 50px 0 60px;
    }
    
    .service-card {
      background: var(--pure-white);
      padding: 40px 25px;
      border-radius: 28px;
      text-align: center;
      transition: all 0.3s;
      box-shadow: 0 8px 18px rgba(0,0,0,0.02);
      border: 1px solid var(--border-light);
    }
    
    .service-card:hover {
      transform: translateY(-12px);
      border-color: var(--light-aqua);
      box-shadow: 0 25px 40px -10px rgba(10,123,158,0.25);
    }
    
    .service-icon {
      background: linear-gradient(145deg, #eaf3f9, #d4e7ed);
      width: 100px;
      height: 100px;
      border-radius: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 28px;
    }
    
    .service-icon i {
      font-size: 3.8rem;
      color: var(--deep-sky);
    }
    
    .service-card h3 {
      font-size: 1.65rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--charcoal);
    }
    
    .service-card p {
      color: var(--cool-gray);
      margin-bottom: 25px;
      font-size: 0.98rem;
    }
    
    .service-tag {
      display: inline-block;
      background: var(--soft-gray);
      padding: 8px 18px;
      border-radius: 40px;
      color: var(--deep-sky);
      font-weight: 600;
      font-size: 0.85rem;
      border: 1px solid #cde3ec;
    }
    
    /* ~~~~~~~~~~ ویژگی‌های فنی و تخصصی ~~~~~~~~~~ */
    .specials {
      background: linear-gradient(110deg, #f4f8fc, #ffffff);
      border-radius: 50px;
      padding: 50px 40px;
      margin: 70px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 30px;
      border: 1px solid var(--border-light);
    }
    
    .specials-content {
      flex: 2 1 300px;
    }
    
    .specials h3 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--charcoal);
      margin-bottom: 20px;
    }
    
    .specials h3 i {
      color: var(--deep-sky);
      margin-right: 10px;
    }
    
    .specials-list {
      list-style: none;
    }
    
    .specials-list li {
      margin-bottom: 18px;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      gap: 15px;
      color: var(--cool-gray);
    }
    
    .specials-list i {
      color: var(--deep-sky);
      font-size: 1.5rem;
      width: 30px;
      text-align: center;
    }
    
    .specials-image {
      flex: 1 1 200px;
      text-align: center;
    }
    
    .specials-image i {
      font-size: 9rem;
      color: var(--cool-gray);
      opacity: 0.5;
    }
    
    /* ~~~~~~~~~~ نمونه پروژه‌ها / گالری ~~~~~~~~~~ */
    .showcase {
      margin: 60px 0;
    }
    
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
      margin-top: 40px;
    }
    
    .showcase-item {
      background: white;
      border-radius: 24px;
      padding: 30px 20px;
      border: 1px solid var(--border-light);
      transition: 0.2s;
      text-align: center;
    }
    
    .showcase-item:hover {
      border-color: var(--deep-sky);
    }
    
    .showcase-item i {
      font-size: 2.8rem;
      color: var(--deep-sky);
      margin-bottom: 15px;
    }
    
    .showcase-item h4 {
      font-size: 1.3rem;
      margin-bottom: 10px;
      color: var(--charcoal);
    }
    
    .showcase-item p {
      color: var(--cool-gray);
      font-size: 0.95rem;
    }
    
    /* ~~~~~~~~~~ فرآیند کار ~~~~~~~~~~ */
    .process {
      background: var(--pure-white);
      border-radius: 50px;
      padding: 50px 40px;
      margin: 50px 0;
      box-shadow: var(--shadow-sm);
    }
    
    .process-steps {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      margin-top: 30px;
    }
    
    .step {
      flex: 1 1 150px;
      text-align: center;
      position: relative;
    }
    
    .step-number {
      background: var(--deep-sky);
      color: white;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 700;
      margin: 0 auto 20px;
      box-shadow: 0 6px 0 #0a5d79;
    }
    
    .step h4 {
      font-size: 1.25rem;
      margin-bottom: 10px;
      color: var(--charcoal);
    }
    
    .step p {
      color: var(--cool-gray);
      font-size: 0.9rem;
    }
    
    /* ~~~~~~~~~~ بخش مدیریت پروژه ~~~~~~~~~~ */
    .project-management {
      background: linear-gradient(110deg, #f4f8fc, #ffffff);
      border-radius: 50px;
      padding: 50px 40px;
      margin: 70px 0;
      border: 1px solid var(--border-light);
    }
    
    .project-management h3 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--charcoal);
      margin-bottom: 20px;
    }
    
    .project-management p {
      color: var(--cool-gray);
      font-size: 1.1rem;
      margin-bottom: 30px;
    }
    
    .project-management ul {
      list-style: none;
    }
    
    .project-management li {
      margin-bottom: 18px;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      gap: 15px;
      color: var(--cool-gray);
    }
    
    .project-management i {
      color: var(--deep-sky);
      font-size: 1.5rem;
    }
    
    /* ~~~~~~~~~~ بخش محصولات الکترونیکی ~~~~~~~~~~ */
    .electronics {
      margin: 60px 0;
    }
    
    .electronics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
      margin-top: 40px;
    }
    
    .electronics-item {
      background: white;
      border-radius: 24px;
      padding: 30px 20px;
      border: 1px solid var(--border-light);
      transition: 0.2s;
      text-align: center;
      cursor: pointer;
    }
    
    .electronics-item img {
      max-width: 100%;
      height: auto;
      border-radius: 10px;
      margin-bottom: 15px;
    }
    
    .electronics-item:hover {
      border-color: var(--deep-sky);
    }
    
    .electronics-item i {
      font-size: 2.8rem;
      color: var(--deep-sky);
      margin-bottom: 15px;
    }
    
    .electronics-item h4 {
      font-size: 1.3rem;
      margin-bottom: 10px;
      color: var(--charcoal);
    }
    
    .electronics-item p {
      color: var(--cool-gray);
      font-size: 0.95rem;
    }
    
    /* ~~~~~~~~~~ بخش لینک به ساب‌دامین ~~~~~~~~~~ */
    .fancy-launch-btn {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 16px 48px;
      font-size: 1.15rem;
      font-weight: 700;
      color: white;
      text-decoration: none;
      background: linear-gradient(135deg, var(--deep-sky), #096a88, var(--light-aqua));
      background-size: 200% 200%;
      border-radius: 60px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(10, 123, 158, 0.4);
      transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      border: none;
      cursor: pointer;
    }
    
    .fancy-launch-btn:hover {
      transform: translateY(-6px) scale(1.04);
      box-shadow: 0 20px 50px rgba(10, 123, 158, 0.55);
      background-position: 100% 100%;
    }
    
    .fancy-launch-btn::before {
      content: '';
      position: absolute;
      top: 0; left: -100%;
      width: 50%; height: 100%;
      background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.35),
        transparent
      );
      transition: left 0.7s ease;
    }
    
    .fancy-launch-btn:hover::before {
      left: 100%;
    }
    
    /* neon/glow effect */
    .fancy-launch-btn::after {
      content: '';
      position: absolute;
      inset: -2px;
      background: linear-gradient(45deg, var(--deep-sky), var(--light-aqua), #00f0ff, var(--deep-sky));
      background-size: 400%;
      border-radius: 60px;
      filter: blur(12px);
      opacity: 0.6;
      z-index: -1;
      animation: neonPulse 3s linear infinite;
      transition: opacity 0.4s;
    }
    
    .fancy-launch-btn:hover::after {
      opacity: 0.9;
    }
    
    /* arrow animation */
    .fancy-launch-btn i {
      font-size: 1.3rem;
      transition: transform 0.4s ease;
    }
    
    .fancy-launch-btn:hover i {
      transform: translateX(10px); /* در rtl، به چپ حرکت کنه → حس "رفتن به جلو" */
    }
    
    /* pulse animation for neon */
    @keyframes neonPulse {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }
    
    /* برای موبایل کوچکتر کردن */
    @media (max-width: 650px) {
      .fancy-launch-btn {
        padding: 14px 36px;
        font-size: 1.05rem;
      }
    }
    
    .premium-slider {
      position: relative;
      height: 70vh;           /* یا 600px – بسته به نیاز */
      min-height: 500px;
      overflow: hidden;
      border-radius: 24px;
      box-shadow: var(--shadow-sm);
      margin: 60px 0;
    }
    
    .slides {
      position: relative;
      height: 100%;
    }
    
    .slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity 1.2s ease, transform 1.2s ease;
      transform: scale(1.05);
    }
    
    .slide.active {
      opacity: 1;
      transform: scale(1);
      z-index: 2;
    }
    
    .slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    
    .slide-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.6));
      mix-blend-mode: multiply;   /* شبیه به کدپن اصلی – حس عمق می‌دهد */
      transition: background 1s ease;
    }
    
    .slide-content {
      position: absolute;
      bottom: 15%;
      left: 8%;
      color: white;
      z-index: 3;
      max-width: 50%;
    }
    
    .caption {
      font-size: 1.1rem;
      letter-spacing: 3px;
      text-transform: uppercase;
      opacity: 0.8;
      display: block;
      margin-bottom: 8px;
      animation: fadeInUp 1s ease forwards 0.3s;
    }
    
    .slide h2 {
      font-size: 4.5rem;
      font-weight: 800;
      line-height: 1;
      margin: 0 0 12px;
      animation: fadeInUp 1.2s ease forwards 0.5s;
    }
    
    .slide p {
      font-size: 1.4rem;
      max-width: 420px;
      animation: fadeInUp 1.4s ease forwards 0.7s;
    }
    
    .slider-controls .arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(10,123,158,0.6);
      color: white;
      border: none;
      width: 60px;
      height: 60px;
      border-radius: 50%;
      font-size: 1.8rem;
      cursor: pointer;
      transition: all 0.4s;
      z-index: 10;
    }
    
    .arrow.prev { left: 30px; }
    .arrow.next { right: 30px; }
    
    .arrow:hover {
      background: var(--deep-sky);
      transform: translateY(-50%) scale(1.15);
    }
    
    .slider-dots {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 12px;
      z-index: 10;
    }
    
    .dot {
      width: 12px;
      height: 12px;
      background: rgba(255,255,255,0.5);
      border-radius: 50%;
      cursor: pointer;
      transition: all 0.4s;
    }
    
    .dot.active {
      background: var(--light-aqua);
      transform: scale(1.5);
    }
    
    /* انیمیشن reveal ساده (شبیه کدپن) */
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(40px); }
      to { opacity: 1; transform: translateY(0); }
    }
    /* بخش جدید: مشتریان ما */
    .logo-marquee-container {
      overflow: hidden;
      padding: 40px 0;
      margin: 40px 0;
      background: linear-gradient(to right, transparent, var(--pure-white), transparent);
      position: relative;
    }
    
    .logo-track {
      display: flex;
      animation: scroll-left 30s linear infinite; /* سرعت: ۳۰ ثانیه – می‌توانید تغییر دهید */
      width: max-content; /* مهم برای حلقه بی‌نهایت */
    }
    
    .logo-item {
      flex: 0 0 auto;
      width: 140px;
      height: 140px;
      margin: 0 20px;
      background: var(--soft-gray);
      border-radius: 50%;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(10,123,158,0.15);
      transition: all 0.4s ease;
    }
    
    .logo-item img {
      width: 80%;
      height: 80%;
      object-fit: contain;
      transition: transform 0.4s ease;
    }
    
    .logo-item:hover {
      transform: scale(1.15);
      box-shadow: 0 15px 35px rgba(10,123,158,0.3);
    }
    
    .logo-item:hover img {
      transform: scale(1.1);
    }
    
    /* انیمیشن حرکت بی‌نهایت */
    @keyframes scroll-left {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(-50%); /* دقیقاً نصف عرض track حرکت کند */
      }
    }
    
    /* pause وقتی موس روی آن است (اختیاری اما زیبا) */
    .logo-marquee-container:hover .logo-track {
      animation-play-state: paused;
    }
    
    /* گرادیانت محو شدن در لبه‌ها برای حس حرفه‌ای */
    .logo-marquee-container::before,
    .logo-marquee-container::after {
      content: '';
      position: absolute;
      top: 0;
      width: 120px;
      height: 100%;
      z-index: 1;
      pointer-events: none;
    }
    
    .logo-marquee-container::before {
      left: 0;
      background: linear-gradient(to right, var(--soft-gray), transparent);
    }
    
    .logo-marquee-container::after {
      right: 0;
      background: linear-gradient(to left, var(--soft-gray), transparent);
    }
    
    /* responsive */
    @media (max-width: 768px) {
      .logo-item {
        width: 110px;
        height: 110px;
        margin: 0 15px;
      }
      @keyframes scroll-left {
        100% { transform: translateX(-50%); }
      }
    }
    
    /* بخش جدید: تصاویر پرینتر و کلین روم */
    .images-section {
      margin: 60px 0;
    }
    
    .images-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 25px;
    }
    
    .image-item {
      text-align: center;
    }
    
    .image-item img {
      max-width: 100%;
      border-radius: 20px;
      box-shadow: var(--shadow-sm);
    }
    
    .image-item p {
      margin-top: 10px;
      font-size: 1.1rem;
      color: var(--cool-gray);
    }
    
    /* ~~~~~~~~~~ فوتر ~~~~~~~~~~ */
    footer {
      background: var(--charcoal);
      color: #e2e9ef;
      padding: 60px 0 30px;
      border-radius: 50px 50px 0 0;
      margin-top: 80px;
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;  /* سه ستون: لوگو بزرگ‌تر، دو ستون کوچک‌تر */
      gap: 40px;
      margin-bottom: 40px;
    }
    
    .footer-logo i {
      font-size: 2.5rem;
      color: var(--light-aqua);
      margin-bottom: 15px;
    }
    
    .footer-logo p {
      color: #b6cdda;
      margin-top: 10px;
      line-height: 1.7;
    }
    
    .footer-links h5, .footer-contact h5 {
      color: white;
      font-size: 1.2rem;
      margin-bottom: 25px;
      font-weight: 600;
    }
    
    .footer-links ul, .footer-contact ul {
      list-style: none;
    }
    
    .footer-links li, .footer-contact li {
      margin-bottom: 14px;
    }
    
    .footer-links a {
      color: #b6cdda;
      text-decoration: none;
      transition: 0.2s;
    }
    
    .footer-links a:hover {
      color: var(--light-aqua);
    }
    
    .footer-contact i {
      margin-right: 10px;
      color: var(--light-aqua);
    }
    
    .copyright {
      border-top: 1px solid #4a6373;
      padding-top: 25px;
      margin-top: 30px;
      text-align: center;
      color: #9bb1bd;
      font-size: 0.9rem;
    }
    
    .copyright span {
      color: var(--light-aqua);
      font-weight: 600;
    }
    
    /* ~~~~~~~~~~ رسپانسیو ~~~~~~~~~~ */
    
    
    @media (max-width: 950px) {
      .navbar { flex-direction: column; gap: 15px; }
      .nav-links { flex-wrap: wrap; justify-content: center; gap: 20px; }
      .hero h1 { font-size: 2.5rem; }
      .showcase-grid { grid-template-columns: 1fr 1fr; }
      .electronics-grid { grid-template-columns: 1fr 1fr; }
      .images-grid { grid-template-columns: 1fr; }
      .footer-grid {
        grid-template-columns: 1fr;  /* یک ستون در موبایل */
        text-align: center;          /* وسط‌چین برای زیبایی */
      }
      
      .footer-logo {
        margin-bottom: 40px;
      }
      
      .footer-contact,
      .footer-links {
        margin-bottom: 30px;
      }
    }
    
    @media (max-width: 650px) {
      .hero { flex-direction: column; }
      .hero-image { width: 100%; }
      .footer-grid { grid-template-columns: 1fr; }
      .showcase-grid { grid-template-columns: 1fr; }
      .electronics-grid { grid-template-columns: 1fr; }
      .process-steps { flex-direction: column; gap: 30px; }
    }
    
    .faq-section {
      margin: 80px 0;
      padding: 60px 0;
      background: var(--pure-white);
      border-radius: 40px;
      box-shadow: var(--shadow-sm);
    }
    
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
    }
    
    .faq-accordion details {
      margin-bottom: 16px;
      border: 1px solid var(--border-light);
      border-radius: 16px;
      overflow: hidden;
      background: var(--soft-gray);
      transition: all 0.3s ease;
    }
    
    .faq-accordion details[open] {
      background: white;
      box-shadow: 0 10px 30px rgba(10,123,158,0.15);
    }
    
    .faq-accordion summary {
      padding: 20px 28px;
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--charcoal);
      cursor: pointer;
      position: relative;
      list-style: none; /* حذف marker پیش‌فرض */
      transition: background 0.3s, color 0.3s;
    }
    
    .faq-accordion summary:hover {
      background: rgba(10,123,158,0.05);
      color: var(--deep-sky);
    }
    
    /* آیکون + / - سفارشی */
    .faq-accordion summary::after {
      content: '+';
      position: absolute;
      left: 20px; /* چون rtl است، left یعنی سمت راست صفحه */
      font-size: 1.8rem;
      font-weight: bold;
      color: var(--deep-sky);
      transition: transform 0.4s ease;
    }
    
    .faq-accordion details[open] summary::after {
      transform: rotate(135deg); /* تبدیل + به × */
    }
    
    .faq-accordion summary::-webkit-details-marker {
      display: none; /* حذف marker در کروم/سافاری */
    }
    
    /* محتوا با انیمیشن نرم */
    .faq-content {
      padding: 0 28px 20px;
      font-size: 1rem;
      color: var(--cool-gray);
      line-height: 1.7;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.5s ease, padding 0.3s ease;
    }
    
    details[open] .faq-content {
      max-height: 1000px; /* مقدار بزرگ برای هر محتوا – اگر محتوا خیلی بلند شد افزایش دهید */
      padding: 0 28px 28px;
    }
    
    /* انیمیشن fade-in برای متن داخل */
    .faq-content p {
      opacity: 0;
      transform: translateY(10px);
      transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
    }
    
    details[open] .faq-content p {
      opacity: 1;
      transform: translateY(0);
    }
    
    /* responsive */
    @media (max-width: 768px) {
      .faq-accordion summary {
        font-size: 1.1rem;
        padding: 18px 24px;
      }
      .faq-accordion summary::after {
        left: 16px;
      }
    }