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

:root {
    /* تغییر رنگ‌های سبز به آبی فیروزه */
    --primary-green: #0891b2;
    --dark-green: #0e7490;
    --light-green: #06b6d4;
    --accent-green: #00d9ff;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --dark-gray: #333333;
    --text-gray: #666666;
}

body {
    font-family: "Vazirmatn", sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    direction: rtl;
}

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

/* سرصفحه و ناوبری */
.header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(27, 122, 61, 0.3);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--white);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex: 1;
}

    .nav-links a {
        color: var(--white);
        text-decoration: none;
        font-weight: 500;
        transition: color 0.3s ease;
    }

        .nav-links a:hover {
            color: var(--accent-green);
        }

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-login {
    background-color: var(--accent-green);
    color: var(--white);
    flex-shrink: 0;
}

    .btn-login:hover {
        background-color: var(--light-green);
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(46, 158, 95, 0.4);
    }

.btn-primary {
    background-color: var(--accent-green);
    color: var(--white);
}

    .btn-primary:hover {
        background-color: var(--light-green);
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(46, 158, 95, 0.4);
    }

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

    .btn-secondary:hover {
        background-color: var(--white);
        color: var(--primary-green);
        transform: translateY(-2px);
    }

.full-width {
    width: 100%;
}

/* بخش قهرمان */
.hero {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--light-green) 100%);
    color: var(--white);
    padding: 8rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeInDown 0.8s ease;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* درباره ما */
.about {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

    .about h2 {
        font-size: 2.5rem;
        text-align: center;
        margin-bottom: 3rem;
        color: var(--dark-green);
    }

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(27, 122, 61, 0.1);
    transition: transform 0.3s ease;
}

    .stat:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(27, 122, 61, 0.2);
    }

    .stat h3 {
        font-size: 2rem;
        color: var(--primary-green);
        margin-bottom: 0.5rem;
    }

    .stat p {
        color: var(--text-gray);
        font-size: 1rem;
    }

/* ماموریت */
.mission {
    padding: 5rem 0;
    background-color: var(--white);
}

    .mission h2 {
        font-size: 2.5rem;
        text-align: center;
        margin-bottom: 3rem;
        color: var(--dark-green);
    }

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.mission-card {
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    padding: 2.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-green);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(27, 122, 61, 0.1);
}

    .mission-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 24px rgba(27, 122, 61, 0.2);
        background: linear-gradient(135deg, var(--accent-green) 0%, var(--light-green) 100%);
        color: var(--white);
    }

        .mission-card:hover h3,
        .mission-card:hover p {
            color: var(--white);
        }

.mission-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.mission-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-green);
}

.mission-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* تاثیرات */
.impact {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    color: var(--white);
}

    .impact h2 {
        font-size: 2.5rem;
        text-align: center;
        margin-bottom: 3rem;
    }

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.impact-card {
    background: rgba(255, 255, 255, 0.15);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

    .impact-card:hover {
        background: rgba(255, 255, 255, 0.25);
        border-color: rgba(255, 255, 255, 0.5);
        transform: translateY(-5px);
    }

    .impact-card h3 {
        font-size: 2.5rem;
        font-weight: 800;
        margin-bottom: 0.5rem;
    }

    .impact-card p {
        font-size: 1rem;
        opacity: 0.95;
    }

/* ورود */
.login-section {
    padding: 5rem 0;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    min-height: 600px;
}

.login-box {
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(27, 122, 61, 0.2);
    max-width: 400px;
    margin: 0 auto;
    border-top: 4px solid var(--primary-green);
}

    .login-box h2 {
        text-align: center;
        color: var(--dark-green);
        margin-bottom: 2rem;
        font-size: 1.8rem;
    }

.form-group {
    margin-bottom: 1.5rem;
}

    .form-group label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: 600;
        color: var(--dark-gray);
    }

    .form-group input {
        width: 100%;
        padding: 0.75rem;
        border: 2px solid var(--light-gray);
        border-radius: 8px;
        font-size: 1rem;
        transition: border-color 0.3s ease;
    }

        .form-group input:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(27, 122, 61, 0.1);
        }

.login-form .btn {
    margin-top: 1rem;
}

.signup-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-gray);
}

    .signup-link a {
        color: var(--primary-green);
        text-decoration: none;
        font-weight: 600;
    }

        .signup-link a:hover {
            text-decoration: underline;
        }

/* فوتر */
.footer {
    background: linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section ul {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.3s ease;
}

    .footer-section a:hover {
        color: var(--accent-green);
    }

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
}

/* واکنش‌گرایی */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

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

    .about-content {
        grid-template-columns: 1fr;
    }

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

    .about h2,
    .mission h2,
    .impact h2 {
        font-size: 1.8rem;
    }
}