/* Header and Navigation Stylesheet */

.header-site {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.header-site.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-header);
    padding: 8px 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: clamp(70px, 9vw, 90px);
    transition: var(--transition);
}

.header-site.scrolled .header-container {
    height: 70px;
}

/* Brand Logo Layout */
.brand-logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 100%;
}

.logo-img-wrapper {
    width: clamp(45px, 6vw, 55px);
    height: clamp(45px, 6vw, 55px);
    border-radius: 50%;
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border);
    overflow: hidden;
}

.logo-img-wrapper img {
    width: 85%;
    height: 85%;
    object-fit: contain;
}

.brand-text-block {
    display: flex;
    flex-direction: column;
}

.brand-main-title {
    font-family: var(--font-heading);
    font-size: clamp(15px, 1.8vw, 20px);
    font-weight: 800;
    color: var(--navy);
    line-height: 1.2;
    letter-spacing: -0.5px;
    white-space: nowrap;
}

.brand-subtitle {
    font-family: var(--font-body);
    font-size: clamp(9px, 1vw, 11px);
    font-weight: 600;
    color: var(--primary-red);
    letter-spacing: 0.5px;
    margin-top: 1px;
    white-space: nowrap;
}

/* Navigation Menu */
.nav-site {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: clamp(8px, 1.2vw, 20px);
}

.nav-link {
    font-family: var(--font-heading);
    font-size: clamp(12px, 1vw, 14px);
    font-weight: 600;
    color: var(--navy-light);
    position: relative;
    padding: 6px 0;
    transition: var(--transition);
    white-space: nowrap;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-red);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 10px;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-link.active {
    color: var(--primary-red);
}

/* Header Buttons */
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-join-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    font-size: 14px;
    border-radius: 30px;
    background: var(--gradient-red);
    color: var(--surface);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.2);
    transition: var(--transition);
}

.header-join-btn:hover {
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
    transform: translateY(-2px);
}

/* Hamburger Trigger */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--navy);
    border-radius: 3px;
    transition: var(--transition);
}

/* Responsive Styles for Hamburger and Mobile Menu Overlay */
@media (max-width: 1180px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-site {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        z-index: 999;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-100%);
        transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease, visibility 0.5s;
    }
    
    .nav-site.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .nav-link {
        font-size: 20px;
        padding: 10px 0;
    }
    
    /* Animated Hamburger Menu Icon States */
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(7.5px) rotate(45deg);
        background-color: var(--primary-red);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-7.5px) rotate(-45deg);
        background-color: var(--primary-red);
    }
    
    /* Prevent body scrolling when mobile menu open */
    body.menu-open {
        overflow: hidden;
    }
}