@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #00d4ff;
    --dark-bg: #0a0e1a;
    --card-bg: #131820;
    --card-hover: #1a1f2e;
    --text-primary: #ffffff;
    --text-secondary: #b8c1ec;
    --text-muted: #8892b0;
    --border: rgba(255,255,255,0.08);
    --shadow: 0 8px 32px rgba(0,0,0,0.3);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Vazirmatn', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    padding-bottom: 20px;
}

.logo {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

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

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    position: relative;
    transition: var(--transition);
    padding: 8px 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::before {
    width: 100%;
}

.header-login {
    padding: 10px 24px;
    border: 1.5px solid rgba(102, 126, 234, 0.4);
    background: rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

.header-login:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.slider {
    position: relative;
    height: clamp(500px, 80vh, 700px);
    overflow: hidden;
    background: linear-gradient(135deg, #0f1419 0%, #1a1f2e 100%);
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding: 64px;
    align-items: center;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide img {
    width: 100%;
    height: 100%;
    max-height: 550px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
    transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active img {
    animation: zoomIn 1s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes zoomIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.slide-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
    padding-right: 32px;
}

.slide.active .slide-content h3 {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}

.slide.active .slide-content h2 {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

.slide.active .slide-content p {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s both;
}

.slide.active .countdown {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.5s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-content h3 {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 800;
    line-height: 1.3;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

.slide-content h2 {
    font-size: clamp(18px, 3vw, 22px);
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0;
}

.slide-content p {
    color: var(--text-muted);
    font-size: clamp(14px, 2vw, 15px);
    line-height: 1.8;
    margin: 4px 0;
}

.countdown {
    margin-top: 8px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border);
    display: inline-block;
}

.countdown-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.countdown-timer {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.countdown-item {
    background: rgba(102, 126, 234, 0.1);
    padding: 12px 16px;
    border-radius: 12px;
    text-align: center;
    min-width: 70px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: var(--transition);
}

.countdown-item:hover {
    background: rgba(102, 126, 234, 0.15);
    transform: translateY(-2px);
}

.countdown-value {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}

.countdown-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    z-index: 20;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.prev {
    left: 24px;
}

.next {
    right: 24px;
}

.slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 40;
}

.dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    width: 32px;
    border-radius: 4px;
}

.about-section,
.business-section {
    padding: clamp(60px, 10vh, 100px) 0;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--card-bg) 100%);
    position: relative;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 800px;
    height: 400px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.section-title {
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 800;
    text-align: center;
    margin-bottom: 48px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    letter-spacing: -1px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.about-content,
.business-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: justify;
}

.about-content p,
.business-content p {
    color: var(--text-muted);
    font-size: clamp(15px, 2.5vw, 17px);
    line-height: 2;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.topics-section {
    padding: clamp(60px, 10vh, 100px) 0;
    background: var(--card-bg);
    position: relative;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.topic-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
}

.topic-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.topic-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: inline-block;
    transition: var(--transition);
}

.topic-card:hover .topic-icon {
    transform: scale(1.2) rotateY(180deg);
}

.topic-card h3 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.topic-card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
}

.footer {
    background: var(--dark-bg);
    border-top: 1px solid var(--border);
    padding: clamp(40px, 8vh, 60px) 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-bottom: 32px;
}

.footer-col h3 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
}

.footer-col h3::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    margin-top: 8px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.footer-col p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 12px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    margin-bottom: 16px;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.4);
}

.contact-info p {
    margin-bottom: 8px;
}

.map-col iframe {
    border-radius: 16px;
    margin-top: 12px;
    border: 1px solid var(--border);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 13px;
}

@media (max-width: 960px) {
    .slide {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 48px 32px;
    }

    .slide-content {
        padding-right: 0;
    }
}

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

    .header-login {
        display: none;
    }

    .nav {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 0;
    }

    .nav.active {
        max-height: 400px;
        opacity: 1;
        padding: 16px;
    }

    .nav-link {
        padding: 16px 20px;
        width: 100%;
        display: block;
        border-radius: 12px;
        transition: background 0.3s ease;
    }

    .nav-link:hover {
        background: rgba(102, 126, 234, 0.1);
    }

    .nav-link::before {
        display: none;
    }

    .slider {
        height: auto;
        min-height: 0;
    }

    .slide {
        position: relative;
        display: block;
        padding: 0;
        height: auto;
    }

    .slide img {
        width: 100%;
        height: auto;
        max-height: none;
        aspect-ratio: 16/9;
        border-radius: 0;
        object-fit: cover;
    }

    .slide-content {
        padding: 24px 20px;
        background: linear-gradient(to top, rgba(10, 14, 26, 0.95), rgba(10, 14, 26, 0.7));
    }

    .countdown-timer {
        justify-content: center;
    }

    .countdown-item {
        min-width: 60px;
        padding: 10px 12px;
    }

    .countdown-value {
        font-size: 20px;
    }

    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .prev {
        left: 12px;
    }

    .next {
        right: 12px;
    }

    .slider-dots {
        bottom: 16px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .slider-btn {
        display: none;
    }

    .dot {
        width: 6px;
        height: 6px;
    }

    .dot.active {
        width: 24px;
    }

    .slide-content h3 {
        font-size: 22px;
    }

    .slide-content h2 {
        font-size: 16px;
    }

    .slide-content p {
        font-size: 13px;
    }

    .countdown {
        padding: 16px;
    }

    .countdown-item {
        min-width: 54px;
        padding: 8px 10px;
    }

    .countdown-value {
        font-size: 18px;
    }

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

.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}