/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f1115;
    --bg-secondary: #161a22;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --accent: #39ff88;
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-blur: blur(14px);
}

body {
    font-family: 'Vazirmatn', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 17, 21, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

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

.btn-cta-small {
    background: var(--accent);
    color: var(--bg-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(57, 255, 136, 0.2);
}

.btn-cta-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(57, 255, 136, 0.3);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(57, 255, 136, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(57, 255, 136, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: var(--accent);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(57, 255, 136, 0.1);
    border-color: rgba(57, 255, 136, 0.2);
}

/* Hero Card - KPI */
.hero-card {
    animation: fadeInUp 0.8s ease 0.2s both;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

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

.kpi-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kpi-icon svg {
    width: 100%;
    height: 100%;
}

.kpi-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.kpi-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.progress-section {
    margin-top: 2rem;
}

.progress-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0.8rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent) 0%, rgba(57, 255, 136, 0.6) 100%);
    border-radius: 10px;
    transition: width 1s ease;
    box-shadow: 0 0 10px rgba(57, 255, 136, 0.5);
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.progress-stats span:first-child {
    color: var(--accent);
    font-weight: 600;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem 2rem;
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* AI Section */
.ai-section {
    padding: 6rem 0;
}

.ai-content {
    max-width: 900px;
    margin: 0 auto;
}

.ai-content .section-title {
    margin-bottom: 3rem;
}

.ai-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.ai-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.ai-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-icon svg {
    width: 100%;
    height: 100%;
}

.ai-text h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.ai-text p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.cta-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background: linear-gradient(135deg, var(--glass-bg) 0%, rgba(57, 255, 136, 0.05) 100%);
    border: 1px solid rgba(57, 255, 136, 0.2);
}

.cta-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

/* FAQ Section */
.faq-section {
    padding: 6rem 0;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    padding: 0;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem 2rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: right;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    font-family: 'Vazirmatn', system-ui, sans-serif;
}

.faq-question:hover {
    color: var(--accent);
}

.faq-icon {
    width: 20px;
    height: 20px;
    min-width: 20px;
    transition: transform 0.3s ease;
    color: var(--accent);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 2rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.5rem;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* Footer */
.footer {
    padding: 3rem 0 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.footer-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .nav {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .btn-cta-small {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

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

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

    .ai-item {
        flex-direction: column;
        text-align: center;
    }

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

@media (max-width: 640px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .nav {
        display: none;
    }

    .hero-buttons {
        flex-direction: column;
    }

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