/* ========================================
   HEADER - Play Tribe Fun
   Modern 2025 Yellow & White Design
   ======================================== */

.site-header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    gap: 32px;
}

/* Logo */
.header-logo {
    flex-shrink: 0;
}

.header-logo img {
    height: 55px;
    width: auto;
    transition: var(--transition-base);
}

.header-logo:hover img {
    transform: scale(1.05);
}

/* Navigation */
.nav-menu {
    flex: 1;
    display: flex;
    list-style: none;
    gap: 8px;
    justify-content: center;
    margin: 0;
    padding: 0;
}

.nav-menu li a {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    text-decoration: none;
    position: relative;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--primary-yellow);
    background: rgba(255, 215, 0, 0.1);
}

/* Auth Buttons */
.header-auth-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-login {
    background: transparent;
    color: var(--text-dark) !important;
    border: 2px solid var(--primary-yellow);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: var(--transition-base);
}

.btn-login:hover {
    background: var(--primary-yellow);
    color: var(--white) !important;
}

.btn-register {
    background: var(--gradient-yellow);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.9375rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-yellow);
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.nav-toggle:hover {
    background: var(--light-gray);
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition-base);
}

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

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Preloader - Modern Minimal */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.preloader-logo {
    width: 120px;
    height: 120px;
    margin-bottom: 24px;
    animation: pulse 2s ease-in-out infinite;
}

.preloader-text {
    color: var(--primary-yellow);
    font-size: 1.25rem;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 968px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        flex-direction: column;
        padding: 32px 24px;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
        justify-content: flex-start;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu li a {
        width: 100%;
        text-align: center;
        font-size: 1.125rem;
        padding: 16px 24px;
    }
    
    .header-auth-buttons {
        position: fixed;
        bottom: 32px;
        left: 24px;
        right: 24px;
        flex-direction: column;
        background: var(--white);
        padding: 16px;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        display: none;
    }
    
    .nav-menu.active ~ .header-auth-buttons {
        display: flex;
    }
    
    .btn-login,
    .btn-register {
        width: 100%;
        padding: 16px 24px;
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 16px 0;
    }
    
    .header-logo img {
        height: 45px;
    }
}