/* ===== Header ===== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    animation: slideDown 0.6s ease-out;
}

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

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ===== Logo ===== */
.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: var(--transition);
}

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

.logo-icon {
    width: 42px;
    height: 42px;
    filter: drop-shadow(0 0 12px rgba(102, 126, 234, 0.6));
    transition: var(--transition);
}

.logo-link:hover .logo-icon {
    filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.9));
}

.logo-text {
    font-family: 'Cinzel', serif;
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-shadow:
            0 0 20px rgba(102, 126, 234, 0.6),
            0 0 40px rgba(118, 75, 162, 0.4),
            0 0 60px rgba(240, 147, 251, 0.3);
    animation: mythicGlow 3s ease-in-out infinite;
}

@keyframes mythicGlow {
    0%, 100% { filter: brightness(1) drop-shadow(0 0 10px rgba(102, 126, 234, 0.5)); }
    50% { filter: brightness(1.2) drop-shadow(0 0 20px rgba(118, 75, 162, 0.8)); }
}

/* ===== Navigation ===== */
.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: var(--transition);
}

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

.nav-link:hover::before {
    opacity: 1;
}

.nav-link svg {
    transition: var(--transition);
}

.nav-link:hover svg {
    transform: translateY(-2px);
}

/* ===== Login Button ===== */
.login-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.25);
    background-size: 200% 200%;
}

.login-btn::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-md);
    z-index: -1;
    opacity: 0;
    filter: blur(10px);
    transition: var(--transition);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(102, 126, 234, 0.45);
    background-position: 100% 100%;
    animation: gradientFlow 3s ease infinite;
}

.login-btn:hover::after {
    opacity: 0.9;
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn span,
.login-btn svg {
    position: relative;
    z-index: 1;
}

/* ===== Mobile Menu Toggle ===== */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header-container {
        padding: 16px 20px;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
    }

    .logo-text {
        font-size: 1.3rem;
    }

    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 16px;
        gap: 8px;
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-link {
        width: 100%;
        justify-content: center;
    }

    .login-btn {
        padding: 10px 24px;
        font-size: 0.9rem;
    }

    .mobile-menu-toggle {
        display: block;
    }
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    color: var(--primary);
}

.mobile-menu-toggle.active svg {
    transform: rotate(90deg);
}

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

    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 16px;
        gap: 8px;
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-link,
    .login-btn {
        width: 100%;
        justify-content: center;
    }
}